Komatsu Ltd.

Japan

Back to Profile

1-100 of 6,616 for Komatsu Ltd. and 11 subsidiaries Sort by
Query
Aggregations
IP Type
        Patent 6,332
        Trademark 284
Jurisdiction
        World 3,402
        United States 2,811
        Canada 372
        Europe 31
Owner / Subsidiary
[Owner] Komatsu Ltd. 4,703
Gigaphoton Inc. 1,323
Komatsu Industries Corporation 169
Komatsu NTC Ltd. 120
Hensley Industries, Inc. 120
See more
Date
New (last 4 weeks) 53
2026 July 53
2026 June 27
2026 May 22
2026 April 31
See more
IPC Class
E02F 9/20 - DrivesControl devices 1,014
E02F 9/26 - Indicating devices 1,013
E02F 9/22 - Hydraulic or pneumatic drives 568
H05G 2/00 - Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma 475
E02F 3/43 - Control of dipper or bucket positionControl of sequence of drive operations 375
See more
NICE Class
09 - Scientific and electric apparatus and instruments 124
07 - Machines and machine tools 112
42 - Scientific, technological and industrial services, research and design 96
37 - Construction and mining; installation and repair services 88
39 - Transport, packaging, storage and travel services 42
See more
Status
Pending 686
Registered / In Force 5,930
  1     2     3     ...     67        Next Page

1.

Miscellaneous Design

      
Application Number 1930315
Status Registered
Filing Date 2026-02-26
Registration Date 2026-02-26
Owner KOMATSU LTD. (Japan)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Battery charge devices; charging appliances for rechargeable equipment; charging stations for electric vehicles; electric car charging piles; chargers for electric accumulators; chargers for electric batteries; portable power chargers; wireless chargers; electric charging cables; battery packs; battery boxes; battery cases; battery terminals; lithium ion batteries; rechargeable batteries; accumulators being batteries for cars; electric accumulators being batteries; capacitors; separators for accumulators being batteries; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; photovoltaic installations for generating electricity [photovoltaic power plants]; simulators for the steering and control of vehicles; simulators for training in the operation of metalworking machines, construction machines, earth moving machines, loading-unloading machines, mining machines, machines for use in forestry, agricultural machines, snow ploughs, waste compacting machines, and waste crushing machines; computer programs; remote control apparatus; navigation apparatus for vehicles [on-board computers]; navigational instruments; radar apparatus; intercommunication apparatus; monitoring apparatus, other than for medical purposes; telecommunication machines and apparatus; diagnostic apparatus, not for medical purposes; data processing apparatus.

2.

Miscellaneous Design

      
Application Number 1930316
Status Registered
Filing Date 2026-02-26
Registration Date 2026-02-26
Owner KOMATSU LTD. (Japan)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Battery charge devices; charging appliances for rechargeable equipment; charging stations for electric vehicles; electric car charging piles; chargers for electric accumulators; chargers for electric batteries; portable power chargers; wireless chargers; electric charging cables; battery packs; battery boxes; battery cases; battery terminals; lithium ion batteries; rechargeable batteries; accumulators being batteries for cars; electric accumulators being batteries; capacitors; separators for accumulators being batteries; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; photovoltaic installations for generating electricity [photovoltaic power plants]; simulators for the steering and control of vehicles; simulators for training in the operation of metalworking machines, construction machines, earth moving machines, loading-unloading machines, mining machines, machines for use in forestry, agricultural machines, snow ploughs, waste compacting machines, and waste crushing machines; computer programs; remote control apparatus; navigation apparatus for vehicles [on-board computers]; navigational instruments; radar apparatus; intercommunication apparatus; monitoring apparatus, other than for medical purposes; telecommunication machines and apparatus; diagnostic apparatus, not for medical purposes; data processing apparatus.

3.

MANAGEMENT SYSTEM FOR WORK SITE AND MANAGEMENT METHOD FOR WORK SITE

      
Application Number 19141455
Status Pending
Filing Date 2024-01-12
First Publication Date 2026-07-30
Owner KOMATSU LTD. (Japan)
Inventor Nakano, Shin

Abstract

A management system for a work site includes a first controller and a second controller. The first controller transmits a survey start command in order to set a travel area where an unmanned dump truck can travel in a work site to a shovel that operates at the work site, and receives survey data indicating a position of a linear portion of the work site detected by the shovel based on the survey start command. The second controller sets an edge line of the travel area based on the survey data.

IPC Classes  ?

  • E02F 9/26 - Indicating devices
  • E02F 3/43 - Control of dipper or bucket positionControl of sequence of drive operations

4.

WORK MACHINE AND METHOD FOR INSPECTING HYDRAULIC OIL AMOUNT

      
Application Number 19157863
Status Pending
Filing Date 2024-02-27
First Publication Date 2026-07-30
Owner KOMATSU LTD. (Japan)
Inventor Shinohara, Kei

Abstract

Inspection of a hydraulic oil amount is efficiently performed. A work machine includes a vehicle body, a work implement supported by the vehicle body, a detection device that detects at least any one of an attitude of the vehicle body and an attitude of the work implement, and a controller. The controller executes a comparison in at least any one of the vehicle body and the work implement between a current attitude detected by the detection device and a target attitude at the time of maintenance set in advance, and outputs a result of the comparison.

IPC Classes  ?

  • E02F 9/26 - Indicating devices
  • E02F 3/32 - DredgersSoil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam working downwardly and towards the machine, e.g. with backhoes
  • E02F 3/43 - Control of dipper or bucket positionControl of sequence of drive operations
  • E02F 9/20 - DrivesControl devices
  • E02F 9/22 - Hydraulic or pneumatic drives
  • G01F 23/80 - Arrangements for signal processing

5.

AUTOMATIC CONTROL SYSTEM FOR WORK MACHINE AND CONTROL METHOD FOR WORK MACHINE

      
Application Number 19146846
Status Pending
Filing Date 2023-08-31
First Publication Date 2026-07-30
Owner KOMATSU LTD. (Japan)
Inventor
  • Fujii, Yuto
  • Tsunano, Yuta
  • Hirama, Takahiro

Abstract

A work implement posture sensor detects a posture of a work implement. A controller identifies a passing point through which a bucket passes during revolution of a revolving body, based on a result of the detection by the work implement posture sensor, calculates a corrected passing point by adding a vertical offset, derived from shape data of the bucket, to the height position of the passing point, and controls the bucket so as to pass through the corrected passing point during the revolution.

IPC Classes  ?

  • E02F 3/43 - Control of dipper or bucket positionControl of sequence of drive operations
  • E02F 3/32 - DredgersSoil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam working downwardly and towards the machine, e.g. with backhoes
  • E02F 9/20 - DrivesControl devices
  • E02F 9/26 - Indicating devices

6.

MONITORING SYSTEM AND TRACK LINK ASSEMBLY

      
Application Number JP2025039646
Publication Number 2026/159999
Status In Force
Filing Date 2025-11-12
Publication Date 2026-07-30
Owner KOMATSU LTD. (Japan)
Inventor
  • Kobayashi, Naomi
  • Kitai, Noriyuki

Abstract

Provided is a monitoring system comprising: a track bush; a track pin; a sleeve; a wireless communication device; and a controller. The track pin is disposed by being passed through a hole of the track bush. The sleeve is disposed between the track bush and the track pin so that a gap is provided between an inner peripheral surface of the track bush and an outer peripheral surface of the track pin. A sensor assembly is disposed in the gap. The sensor assembly generates wear data indicating the amount of wear of the track bush. The wireless communication device is disposed inside the track pin. The wireless communication device is communicatively coupled with the sensor assembly. The wireless communication device transmits the wear data. The controller receives the wear data and generates wear information indicating the amount of wear of the track bush on the basis of the wear data.

IPC Classes  ?

  • B62D 55/21 - Links connected by transverse pivot pins

7.

Miscellaneous Design

      
Application Number 1930314
Status Registered
Filing Date 2026-02-26
Registration Date 2026-02-26
Owner KOMATSU LTD. (Japan)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Battery charge devices; charging appliances for rechargeable equipment; charging stations for electric vehicles; electric car charging piles; chargers for electric accumulators; chargers for electric batteries; portable power chargers; wireless chargers; electric charging cables; battery packs; battery boxes; battery cases; battery terminals; lithium ion batteries; rechargeable batteries; accumulators being batteries for cars; electric accumulators being batteries; capacitors; separators for accumulators being batteries; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; photovoltaic installations for generating electricity [photovoltaic power plants]; simulators for the steering and control of vehicles; simulators for training in the operation of metalworking machines, construction machines, earth moving machines, loading-unloading machines, mining machines, machines for use in forestry, agricultural machines, snow ploughs, waste compacting machines, and waste crushing machines; computer programs; remote control apparatus; navigation apparatus for vehicles [on-board computers]; navigational instruments; radar apparatus; intercommunication apparatus; monitoring apparatus, other than for medical purposes; telecommunication machines and apparatus; diagnostic apparatus, not for medical purposes; data processing apparatus.

8.

Miscellaneous Design

      
Application Number 1930317
Status Registered
Filing Date 2026-02-26
Registration Date 2026-02-26
Owner KOMATSU LTD. (Japan)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Battery charge devices; charging appliances for rechargeable equipment; charging stations for electric vehicles; electric car charging piles; chargers for electric accumulators; chargers for electric batteries; portable power chargers; wireless chargers; electric charging cables; battery packs; battery boxes; battery cases; battery terminals; lithium ion batteries; rechargeable batteries; accumulators being batteries for cars; electric accumulators being batteries; capacitors; separators for accumulators being batteries; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; photovoltaic installations for generating electricity [photovoltaic power plants]; simulators for the steering and control of vehicles; simulators for training in the operation of metalworking machines, construction machines, earth moving machines, loading-unloading machines, mining machines, machines for use in forestry, agricultural machines, snow ploughs, waste compacting machines, and waste crushing machines; computer programs; remote control apparatus; navigation apparatus for vehicles [on-board computers]; navigational instruments; radar apparatus; intercommunication apparatus; monitoring apparatus, other than for medical purposes; telecommunication machines and apparatus; diagnostic apparatus, not for medical purposes; data processing apparatus.

9.

SYSTEM AND METHOD FOR CONTROLLING WORK MACHINE

      
Application Number 19146540
Status Pending
Filing Date 2023-11-29
First Publication Date 2026-07-30
Owner KOMATSU LTD. (Japan)
Inventor
  • Shimizu, Osamu
  • Tsumura, Souichi
  • Andou, Tomoki
  • Nakano, Kei
  • Okada, Takashi

Abstract

A system for controlling a work machine includes a position sensor that outputs position data indicating a position of the work machine, and a controller that acquires the position data from the position sensor. The controller acquires current topography data indicating current topography of a work site, acquires a target design surface at least a part of which is located below the current topography, sequentially determines a target excavation surface upward from the target design surface, determines a plurality of excavation paths that each extends in a predetermined work direction on the target excavation surface and is arranged in a direction intersecting the predetermined work direction, and controls the work machine according to the plurality of excavation paths.

IPC Classes  ?

10.

MANAGEMENT SYSTEM FOR WORK SITE AND MANAGEMENT METHOD FOR WORK SITE

      
Application Number 19146011
Status Pending
Filing Date 2024-01-12
First Publication Date 2026-07-30
Owner KOMATSU LTD. (Japan)
Inventor
  • Takeuchi, Seiko
  • Nakano, Shin

Abstract

A management system for a work site includes a processing circuit. The Processing circuit outputs a travel command to a first unmanned vehicle including a first tank so that the first unmanned vehicle travels toward a first destination while consuming liquid stored in the first tank. The Processing circuit monitors a first remaining amount of liquid stored in the first tank and a second remaining amount of liquid stored in a second tank included in a second unmanned vehicle. The Processing circuit outputs a travel command to the second unmanned vehicle so that the second unmanned vehicle travels toward the first destination in a case in which an assignment change condition is determined to be satisfied that the first remaining amount is equal to or less than a predetermined threshold and oil sufficient for the second remaining amount to travel toward the first destination is stored.

IPC Classes  ?

  • G06Q 10/0631 - Resource planning, allocation, distributing or scheduling for enterprises or organisations

11.

EXCIMER LASER APPARATUS AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19410661
Status Pending
Filing Date 2025-12-05
First Publication Date 2026-07-30
Owner Gigaphoton Inc. (Japan)
Inventor Kawagoe, Yousuke

Abstract

An excimer laser apparatus includes an optical resonator, a chamber that includes a pair of electrodes and is disposed in an optical path of the optical resonator, a pulse power module configured to apply a pulse voltage between the electrodes, a charger configured to store electric energy to be supplied to the pulse power module, an energy monitor configured to measure pulse energy of a pulse laser beam output from the optical resonator, and a processor configured to acquire a charging voltage command value of the charger and a measured value of the pulse energy for each of a plurality of pulses, to obtain a correlation between the charging voltage command value and the pulse energy, and to determine whether or not the measured value is outside an allowable range based on a calculated value of the pulse energy calculated from the charging voltage command value and the correlation.

IPC Classes  ?

  • H01S 3/097 - Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
  • H01S 3/225 - Gases the active gas being polyatomic, i.e. containing two or more atoms comprising an excimer or exciplex

12.

DUMP TRUCK

      
Application Number 19134821
Status Pending
Filing Date 2023-12-07
First Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor Yamawaki, Shota

Abstract

A dump truck includes a dump body, a hoist cylinder that extends to raise the dump body and contracts when the dump body is lowered, a power source, and a motor. The motor operates to raise the dump body based on electric power supplied from the power source, and generates regenerative electric power by the dump body being lowered.

IPC Classes  ?

  • B60P 1/16 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load supporting or containing element actuated by fluid-operated mechanisms
  • F15B 11/024 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits

13.

TRAVEL DEVICE, TUNNEL BORING MACHINE, TRAILING CAR, TRANSPORT VEHICLE, TUNNEL BORING SYSTEM, AND MOVEMENT METHOD

      
Application Number 19137668
Status Pending
Filing Date 2024-02-14
First Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor
  • Kawai, Kazunari
  • Terada, Shinichi
  • Hiratsuka, Keigo

Abstract

This travel device is a travel device used in a tunnel boring machine, and including: wheels; and a variable mechanism configured to change an angle formed by a line orthogonal to a rotation axis of the wheels and a vertical line between a first state in which the travel device travels on a flat road surface and a second state in which the travel device travels on an arcuate road surface in frontal view.

IPC Classes  ?

  • E21D 9/10 - Making by using boring or cutting machines
  • E21D 9/11 - Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines

14.

FRICTION DISC, MULTIPLATE CLUTCH, TRANSMISSION, AND WORK MACHINE

      
Application Number 19144549
Status Pending
Filing Date 2023-11-28
First Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor Kanamori, Kyoshiro

Abstract

A friction disc includes a lubricating oil groove including a plurality of first and second groove paths. Each first groove path includes a first inlet disposed on an inner peripheral edge side, a first outlet disposed on an outer peripheral edge side, and a first A groove portion formed from the first inlet and inclined to a first circumferential direction side in the circumferential direction relative to a radial direction. Each second groove path includes a second inlet disposed on the inner peripheral edge side, is inclined to a second circumferential direction side opposite to the first circumferential direction relative to the radial direction, and joins the first A groove portion. A joining portion where the second groove path joins the first A groove portion forms a three-way junction, and is disposed closer to the first inlet between the first inlet and the first outlet of the first groove path.

IPC Classes  ?

15.

WORK MACHINE AND CONTROL METHOD FOR WORK MACHINE

      
Application Number 19157721
Status Pending
Filing Date 2024-03-01
First Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor Takeno, Akira

Abstract

A work machine includes a work machine body, a work implement, a damping unit, a vibration information detection sensor, and a controller. The work machine body can travel. The work implement is attached to the work machine body. The damping unit can damp vibration of the work implement. The vibration information detection sensor detects information regarding vibration of the work machine body. The controller controls the damping unit based on the information regarding vibration detected by the vibration information detection sensor.

IPC Classes  ?

16.

LASER DEVICE AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19406467
Status Pending
Filing Date 2025-12-02
First Publication Date 2026-07-23
Owner Gigaphoton Inc. (Japan)
Inventor
  • Oiwa, Shunya
  • Miyamoto, Hirotaka

Abstract

A laser device includes a discharge-excitation-type laser oscillator configured to output pulse laser light in an ultraviolet wavelength range, a first optical pulse stretcher including a beam splitter and a plurality of concave mirrors and configured to extend a pulse width of the pulse laser light, and a relay lens including a first lens and a second lens arranged on an optical path of the pulse laser light with the pulse width extended. The first lens is a spherical plano-convex lens, and the second lens has a focal length in a longitudinal direction of a beam cross section of the pulse laser light shorter than a focal length in a transverse direction thereof.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • H01S 3/034 - Optical devices within, or forming part of, the tube, e.g. windows, mirrors

17.

WORK MACHINE MONITORING METHOD, COMPUTER-READABLE MEDIUM, AND WORK MACHINE MONITORING SYSTEM

      
Application Number JP2025044112
Publication Number 2026/154891
Status In Force
Filing Date 2025-12-17
Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor
  • Takemoto, Shou
  • Sano, Shinya
  • Toda, Hironori
  • Ishida, Atsushi

Abstract

The present invention makes it possible to ascertain a load applied to a work unit. This work machine monitoring method comprises: a step (S2) for acquiring a posture of a work unit of a work machine; a step (S3) for acquiring a load applied to the work unit; and a step (S5) for outputting the load applied to the work unit for each posture of the work unit from the acquired load applied to the work unit and the posture of the work unit when the load is acquired.

IPC Classes  ?

18.

WORK MACHINE CONTROL DEVICE, WORK MACHINE, WORK MACHINE CONTROL SYSTEM, AND WORK MACHINE CONTROL METHOD

      
Application Number JP2025044833
Publication Number 2026/154921
Status In Force
Filing Date 2025-12-22
Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor Shimada, Kota

Abstract

This work machine control device comprises a processor. The processor: outputs a control command such that a work machine works near a work target on the basis of detection data from a position sensor that detects the position of the work machine; and if the position sensor has malfunctioned, outputs a control command such that the work machine continues working on the basis of detection data from an external sensor that detected the relative positions of the work machine and the work target.

IPC Classes  ?

  • G05D 1/80 - Arrangements for reacting to or preventing system or operator failure
  • E02F 9/20 - DrivesControl devices
  • E02F 9/26 - Indicating devices
  • G05D 1/24 - Arrangements for determining position or orientation
  • G05D 1/43 - Control of position or course in two dimensions

19.

WORK MACHINE AND CONTROL METHOD FOR WORK MACHINE

      
Application Number 19139989
Status Pending
Filing Date 2023-12-12
First Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor Takeno, Akira

Abstract

A wheel loader includes a traveling body that travels under power of an engine, brake circuits with a wet multi-plate disc structure that brake the traveling body, an EPC valve that controls operation of the brake circuits, and a controller that outputs an instruction current operating the EPC valve. The controller includes a calibration mode in which the controller outputs and calibrates the instruction current. The controller determines whether the traveling body is in a vehicle resting state, and executes the calibration mode when the traveling body is in the vehicle resting state.

IPC Classes  ?

  • E02F 9/20 - DrivesControl devices
  • B60T 7/22 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle
  • B60T 8/171 - Detecting parameters used in the regulationMeasuring values used in the regulation
  • B60T 8/172 - Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
  • B60T 13/68 - Electrical control in fluid-pressure brake systems by electrically-controlled valves
  • B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
  • E02F 9/22 - Hydraulic or pneumatic drives
  • E02F 9/26 - Indicating devices

20.

WORK MACHINE, BRAKING SYSTEM FOR WORK MACHINE, AND CONTROL METHOD FOR WORK MACHINE

      
Application Number 19140007
Status Pending
Filing Date 2023-12-12
First Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor Takeno, Akira

Abstract

Automatic braking control for automatically braking traveling is performed. A controller restricts a lifting operation of a work implement during the execution of the automatic braking control.

IPC Classes  ?

  • E02F 9/20 - DrivesControl devices
  • B60T 7/22 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle
  • E02F 9/08 - SuperstructuresSupports for superstructures
  • E02F 9/22 - Hydraulic or pneumatic drives
  • E02F 9/26 - Indicating devices

21.

FUEL CELL SYSTEM, WORK VEHICLE, AND CONTROL METHOD

      
Application Number 19140339
Status Pending
Filing Date 2024-01-19
First Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor Ono, Yuki

Abstract

A first hydrogen storage unit stores hydrogen and has a first filling port that is a hydrogen filling port. A second hydrogen storage unit stores hydrogen and has a second filling port that is a hydrogen filling port. A fuel cell generates power using hydrogen. A pipe connects the first hydrogen storage unit, the second hydrogen storage unit, and the fuel cell to each other, and allows circulation of hydrogen. A valve is provided between the first hydrogen storage unit and the second hydrogen storage unit in the pipe. The valve has a configuration capable of preventing circulation of hydrogen between the first hydrogen storage unit and the second hydrogen storage unit.

IPC Classes  ?

  • H01M 8/04746 - PressureFlow
  • H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration
  • H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants

22.

WORK MACHINE AND METHOD FOR CONTROLLING WORK MACHINE

      
Application Number 19157718
Status Pending
Filing Date 2024-03-04
First Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor Koudou, Koushirou

Abstract

A work machine includes a drive source, a traveling device, a hydraulic brake, an oil temperature sensor, and a controller. The traveling device is driven by the drive source in order to cause the work machine to travel. The hydraulic brake is driven by hydraulic oil in order to brake the traveling device. The oil temperature sensor detects an oil temperature of the hydraulic oil. The controller acquires the oil temperature of the hydraulic oil, and reduces acceleration of the work machine, based on a rise in the oil temperature of the hydraulic oil.

IPC Classes  ?

23.

WORK VEHICLE

      
Application Number JP2025044679
Publication Number 2026/154912
Status In Force
Filing Date 2025-12-19
Publication Date 2026-07-23
Owner KOMATSU LTD. (Japan)
Inventor
  • Kanayama, Takamu
  • Hoshino, Yuta
  • Okawara, Shoon
  • Maeda, Ryosuke

Abstract

A work vehicle 10 comprises: a front wheel 11; a hydrogen tank 50; and a hydrogen filling part 60 having a filling port 61 for filling the hydrogen tank 50 with hydrogen. The hydrogen filling part 60 is positioned further toward the front than the front wheel 11.

IPC Classes  ?

  • B60K 15/063 - Arrangement of tanks
  • B60K 8/00 - Arrangement or mounting of propulsion units not provided for in one of main groups
  • H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids

24.

METHOD OF LOADING TIMBER LOGS ON A LOG-HANDLING VEHICLE AND A LOG-HANDLING VEHICLE

      
Application Number SE2026010015
Publication Number 2026/155683
Status In Force
Filing Date 2026-01-19
Publication Date 2026-07-23
Owner KOMATSU FOREST AB (Sweden)
Inventor
  • Lundgren, Karl
  • Englund, Tommy

Abstract

The invention relates to a log-handling vehicle and a method for loading logs on a log- handling vehicle in which is implemented a controller (24), controlling a closing pressure (P) of a grapple actuator (4c), when detecting that the closing pressure (P) has reached an upper pressure threshold (P-thres 2), automatically controlling the grapple actuator (4c) to assume stopped movement by controlling the grapple valve (18) to shut to inhibit flow to the grapple actuator (4c), when detecting that the provided pressure indication has fallen below a lower pressure threshold (P-thres 1), automatically controlling the grapple actuator to assume closing movement by controlling a grapple valve to re-open to allow a hydraulic flow to the grapple actuator (4c) to close the grapple (4) around the log, lifting the grapple (4) by an articulated crane (2), when the grapple actuator (4c) has assumed stopped movement, providing from the pump system a hydraulic flow at a hydraulic pressure less than the upper pressure threshold (P-thres 2), via a valve system (13, 13A, 13B), to at least one of a grapple rotator (2b) and the crane rotator (2a).

IPC Classes  ?

  • B66C 13/46 - Position indicators for suspended loads or for crane elements
  • A01G 23/00 - Forestry
  • B66C 13/48 - Automatic control of crane drives for producing a single or repeated working cycleProgramme control
  • B66C 1/58 - Gripping members engaging only the external or internal surface of the articles and deforming the articles, e.g. by using gripping members such as tongs or grapples

25.

DUMP TRUCK

      
Application Number 19134426
Status Pending
Filing Date 2023-12-18
First Publication Date 2026-07-16
Owner KOMATSU LTD. (Japan)
Inventor Ono, Yuki

Abstract

A dump truck includes a dump body, a drive source, and a duct. The dump body is rotatably coupled to a vehicle body frame and configured to carry a load. The drive source is configured to use hydrogen as fuel. The duct is configured to guide exhaust gas from the drive source to the dump body.

IPC Classes  ?

  • B60P 1/28 - Tipping-body constructions
  • B60K 13/02 - Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
  • B60K 13/04 - Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
  • F01N 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
  • F02B 29/04 - Cooling of air intake supply
  • F02M 35/024 - Air cleaners using filters, e.g. moistened

26.

CONTROL DEVICE, CONTROL METHOD, AND ENGINE SYSTEM

      
Application Number 19135138
Status Pending
Filing Date 2023-11-27
First Publication Date 2026-07-16
Owner KOMATSU LTD. (Japan)
Inventor
  • Kimura, Mitsuyoshi
  • Aikawa, Go
  • Miyahara, Akikazu
  • Yoshida, Tatsuya

Abstract

A control device is a control device of an engine system including an engine, an oxidation catalyst provided in an exhaust passage of the engine, and a filter configured to collect soot within the exhaust passage, the soot being contained in exhaust gas of the engine, the control device including: an ash accumulation amount estimation unit configured to estimate an ash amount accumulated in the filter; and a regeneration control unit configured to control regeneration of the filter when the ash amount is equal to or less than a predetermined threshold value so that a predetermined amount of the soot remains in the filter, and control regeneration of the filter when the ash amount is greater than the threshold value so that the remaining amount of the soot in the filter is less than the predetermined amount.

IPC Classes  ?

  • F01N 9/00 - Electrical control of exhaust gas treating apparatus
  • B01D 46/44 - Auxiliary equipment or operation thereof controlling filtration
  • B01D 46/46 - Auxiliary equipment or operation thereof controlling filtration automatic
  • B01D 46/82 - Chemical processes for the removal of the retained particles, e.g. by burning with catalysts
  • B01D 46/84 - Chemical processes for the removal of the retained particles, e.g. by burning by heating only
  • B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
  • F01N 3/023 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
  • F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust

27.

WORK MACHINE

      
Application Number 19136414
Status Pending
Filing Date 2023-12-19
First Publication Date 2026-07-16
Owner KOMATSU LTD. (Japan)
Inventor Okajima, Kazumichi

Abstract

A work machine includes a heat exchanger, a first frame, a second frame, and a fan. The first frame is disposed around the heat exchanger. The second frame is detachably fixed to the first frame and is disposed facing the heat exchanger. The fan is fixed to the second frame and is driven by electric power. The second frame is movable upward with respect to the first frame after being unfixed from the first frame.

IPC Classes  ?

  • E02F 9/08 - SuperstructuresSupports for superstructures
  • B60K 11/04 - Arrangement or mounting of radiators, radiator shutters, or radiator blinds

28.

MOTOR

      
Application Number 19136477
Status Pending
Filing Date 2024-01-24
First Publication Date 2026-07-16
Owner KOMATSU LTD. (Japan)
Inventor
  • Ishii, Yuki
  • Hijikata, Hiroki

Abstract

A motor includes a stator core, a plurality of slots disposed in a circumferential direction of the stator core, a coil disposed in the slots, a connecting wire connecting a plurality of coils, and an insulating paper configured to insulate a coil end portion of the coil from the connecting wire at the coil end portion. The connecting wire is formed with a larger surface area at a portion located on the insulating paper than other portions.

IPC Classes  ?

  • H02K 3/52 - Fastening salient pole windings or connections thereto

29.

LASER CHAMBER, LASER DEVICE, AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19410687
Status Pending
Filing Date 2025-12-05
First Publication Date 2026-07-16
Owner Gigaphoton Inc. (Japan)
Inventor Wakui, Yuto

Abstract

A laser chamber includes a container configured to be filled with a laser gas, a first electrode arranged in the container, a second electrode arranged at a position closer to an inner wall of the container than the first electrode while facing the first electrode, and a preionization device arranged on at least one lateral side of the first electrode. Here, the preionization device includes a dielectric pipe, a preionization inner electrode arranged in the dielectric pipe, a preionization outer electrode arranged in contact with outside of the dielectric pipe, an electrically insulating tube inserted between the dielectric pipe and the preionization inner electrode at an end part of the dielectric pipe in a longitudinal direction, and an electrically insulating fixing base that fixes the dielectric pipe at the end part of the dielectric pipe in the longitudinal direction and makes point contact with the dielectric pipe.

IPC Classes  ?

  • H01S 3/038 - Electrodes, e.g. special shape, configuration or composition
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor

30.

BEAM STEERING DEVICE, LASER SYSTEM, BEAM STEERING METHOD, AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19409108
Status Pending
Filing Date 2025-12-04
First Publication Date 2026-07-09
Owner Gigaphoton Inc. (Japan)
Inventor
  • Kusayanagi, Kohei
  • Miyamoto, Hirotaka

Abstract

A beam steering device includes a first mirror configured to reflect, in a second direction, laser light incident thereon in a first direction; a second mirror configured to reflect, in a third direction, the laser light reflected by the first mirror; a first stage configured to integrally move the first mirror and the second mirror in a direction parallel to the first direction; a second stage arranged on the first stage and configured to move the second mirror in a direction parallel to the second direction; and a holder arranged on the second stage and configured to adjust an orientation of a reflection surface of the second mirror.

IPC Classes  ?

  • G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range

31.

WORK MACHINE MONITORING SYSTEM AND WORK MACHINE MONITORING METHOD

      
Application Number 18863846
Status Pending
Filing Date 2023-05-18
First Publication Date 2026-07-09
Owner Komatsu Ltd. (Japan)
Inventor
  • Imaizumi, Masaaki
  • Murakami, Yuya
  • Kawamoto, Shun
  • Emoto, Ryohei
  • Sonoyama, Shoji
  • Hirama, Shota

Abstract

A monitoring system of a work machine includes: a measurement data acquisition unit mounted on a work machine and configured to acquire measurement data of a measurement device that measures a target; a vehicle body data acquisition unit configured to acquire vehicle body data indicating a state of the work machine; a state determination unit configured to determine the state of the work machine based on the vehicle body data; an algorithm selection unit configured to select a specific algorithm for processing the measurement data based on the state of the work machine determined by the state determination unit; and a processing unit configured to process the measurement data and recognize the target based on the specific algorithm selected by the algorithm selection unit.

IPC Classes  ?

  • E02F 9/26 - Indicating devices
  • E02F 3/28 - DredgersSoil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets
  • E02F 9/22 - Hydraulic or pneumatic drives

32.

GAS LASER DEVICE AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19404905
Status Pending
Filing Date 2025-12-01
First Publication Date 2026-07-09
Owner Gigaphoton Inc. (Japan)
Inventor Kusayanagi, Kohei

Abstract

A gas laser device includes a chamber device configured to output pulse laser light, and a pulse stretcher including a plurality of looped optical paths configured to extend a pulse width of the pulse laser light. Each of the looped optical paths includes a beam splitter on which the pulse laser light is incident and a plurality of orbit mirrors configured to sequentially reflect a part of the pulse laser light incident on the beam splitter and return the part of the pulse laser light to the beam splitter so as to be superimposed on another part of the pulse laser light. The pulse stretcher includes a unit that is detachable as separating two or more of the beam splitters from one or more of the orbit mirrors.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media

33.

PULSE WIDTH EXTENSION DEVICE, ALIGNMENT ADJUSTMENT METHOD, AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19407772
Status Pending
Filing Date 2025-12-03
First Publication Date 2026-07-09
Owner Gigaphoton Inc. (Japan)
Inventor Kusayanagi, Kohei

Abstract

A pulse width extension device includes a beam splitter configured to split pulse laser light into loop light and through light and superimpose the loop light circulated through a loop optical path at least once on the through light, and a plurality of concave mirrors configuring the loop optical path. A total number of the concave mirrors is 4n, where n is an integer equal to or more than 1. A first concave mirror on which the loop light is incident firstly from the beam splitter and a second concave mirror on which the loop light is incident thirdly or in a 4n-1-th order from the beam splitter, among the plurality of concave mirrors, are arranged such that an angle of a reflection surface of each of the first concave mirror and the second concave mirror is capable of being adjusted with a position thereof fixed.

IPC Classes  ?

  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor

34.

GAS LASER DEVICE AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19409161
Status Pending
Filing Date 2025-12-04
First Publication Date 2026-07-09
Owner Gigaphoton Inc. (Japan)
Inventor Kusayanagi, Kohei

Abstract

A gas laser device includes a chamber device outputting pulse laser light, a pulse stretcher including looped optical paths, and a housing including a main body portion in which an opening is formed. Each of the looped optical paths includes a beam splitter, and a plurality of circulation mirrors sequentially reflecting a part of the pulse laser light incident on the beam splitter and returning the part of the pulse laser light to the beam splitter to be superimposed on another part thereof. The pulse stretcher includes a plurality of units each including two or more optical elements and being able to be individually taken in and out through the opening. The plurality of units includes first and second units. A deterioration speed of at least one optical element of the first unit is higher than a deterioration speed of the optical elements of the second unit.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
  • H01S 3/034 - Optical devices within, or forming part of, the tube, e.g. windows, mirrors
  • H01S 3/1123 - Q-switching
  • H01S 3/225 - Gases the active gas being polyatomic, i.e. containing two or more atoms comprising an excimer or exciplex

35.

Nozzle for laser processing machine

      
Application Number 29871963
Grant Number D1132979
Status In Force
Filing Date 2023-03-02
First Publication Date 2026-07-07
Grant Date 2026-07-07
Owner Komatsu Industries Corp. (Japan)
Inventor
  • Yamaguchi, Yoshihiro
  • Takata, Nobuhiro
  • Nozaki, Shigeru

36.

HYDRAULIC VALVE APPARATUS

      
Application Number 18863236
Status Pending
Filing Date 2023-05-16
First Publication Date 2026-07-02
Owner Komatsu Ltd. (Japan)
Inventor
  • Hishinuma, Yuichi
  • Miyamoto, Yuusuke

Abstract

A hydraulic valve apparatus interposed between a hydraulic device and a hydraulic pump and controls supply of oil from the hydraulic pump to the hydraulic device by operating a spool provided in a valve body, in which the valve body includes two pump oil passages connected to separate hydraulic pumps via pump ports, and a plurality of linear motion spools separately provided corresponding to a plurality of linear motion hydraulic devices, the two pump oil passages are provided in the valve body to be arranged side by side along a same direction, the plurality of linear motion spools are connected to a portion located on one side of the pump port in the pump oil passages, and the two pump oil passages are connected to each other via a merging-separating oil passage including a merging-separating switching valve at an end portion located on one side of the pump port.

IPC Classes  ?

  • F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
  • F15B 15/18 - Combined units comprising both motor and pump

37.

CURRENT TOPOGRAPHY DATA CREATION SYSTEM FOR WORK SITE AND CURRENT TOPOGRAPHY DATA CREATION METHOD FOR WORK SITE

      
Application Number 19127125
Status Pending
Filing Date 2023-11-08
First Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Ozaki, Masataka
  • Tagawa, Yoshihiro
  • Ozaki, Ryota

Abstract

A current topography data creation system for a work site includes: a current topography data reception unit that receives first current topography data of a work site detected by a three-dimensional sensor included in each of a plurality of work machines; an attribute data reception unit that receives attribute data given to the first current topography data; a current topography data creation unit that creates second current topography data of the work site based on the first current topography data; a priority storage unit that stores priority related to attribute data given to the second current topography data; and an attribute data update unit that, in a case where a plurality of pieces of attribute data of a certain point of the first current topography data is received within a predetermined time, gives attribute data to the point of the second current topography data based on the priority.

IPC Classes  ?

  • G01C 15/00 - Surveying instruments or accessories not provided for in groups
  • E02F 9/26 - Indicating devices

38.

WORK MACHINE, WORK MACHINE CONTROL METHOD, AND WORK MACHINE CONTROL SYSTEM

      
Application Number 19128725
Status Pending
Filing Date 2023-10-05
First Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Sakai, Kazuyuki
  • Nogi, Yugo
  • Sakai, Yoshihiro

Abstract

A work machine includes a slewing bearing, a drive device that drives the slewing bearing, a detector that detects a state of at least one of input to the drive device and output from the drive device, and a determiner that determines a state of the slewing bearing based on a detection value detected by the detector.

IPC Classes  ?

39.

SYSTEM INCLUDING WORK MACHINE, CONTROL METHOD OF WORK MACHINE, AND CONTROLLER OF WORK MACHINE

      
Application Number 19129828
Status Pending
Filing Date 2023-11-24
First Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor Matsuyama, Takafumi

Abstract

The height of a heap of material formed by a stacking work is appropriately determined. A work machine main body includes a travel body. A work implement is attached to the work machine main body and includes a bucket. A controller commands operation of the travel body and the work implement. The controller determines a stacking height (H1) that is a height of a heap of material formed by the material in the bucket being discharged onto a ground in a state where the travel body is grounded to the ground from a mechanical dimension including a dimension of the work machine main body and a dimension of the work implement.

IPC Classes  ?

  • E02F 9/26 - Indicating devices
  • E02F 3/342 - Buckets emptying overhead
  • E02F 3/43 - Control of dipper or bucket positionControl of sequence of drive operations

40.

WORK MACHINE

      
Application Number 19131244
Status Pending
Filing Date 2023-09-14
First Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Suzuki, Junichiro
  • Nagura, Shinobu
  • Ozaki, Tomoaki

Abstract

A work machine includes: a first travel operation valve 13; a second travel operation valve 14; a work equipment operation valve 15; a first pressure compensation valve of the first travel operation valve 13; a second pressure compensation valve of the second travel operation valve 14; a bypass flow path; a travel communication valve 26; a temperature sensor 27; and a control device 6 configured to adjust a stroke of the travel communication valve 26 based on detection data from the temperature sensor 27 in a state in which each of the first travel operation valve 13 and the second travel operation valve 14 is disposed at a neutral position.

IPC Classes  ?

41.

REMOTE CONTROL SYSTEM FOR WORK MACHINE AND REMOTE CONTROL METHOD FOR WORK MACHINE

      
Application Number JP2025039798
Publication Number 2026/140574
Status In Force
Filing Date 2025-11-13
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Motomura, Takuto
  • Takeda, Kazuma
  • Maeda, Saba
  • Tanimoto, Takanobu

Abstract

A remote control system for a work machine according to the present invention comprises a processor. The processor acquires a captured image showing a work site of a remotely controlled work machine captured by an image capture device, and displays the captured image on an display device provided separately from the work machine together with a teaching image associated with a work machine operation area specified by a management device for managing the work site.

IPC Classes  ?

  • E02F 3/84 - Drives or control devices therefor
  • E02F 9/20 - DrivesControl devices
  • E02F 9/26 - Indicating devices
  • G05D 1/43 - Control of position or course in two dimensions
  • G05D 1/225 - Remote-control arrangements operated by off-board computers
  • G05D 1/243 - Means capturing signals occurring naturally from the environment, e.g. ambient optical, acoustic, gravitational or magnetic signals
  • H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

42.

WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE

      
Application Number JP2025042684
Publication Number 2026/140813
Status In Force
Filing Date 2025-12-08
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Tashiro, Naoki
  • Ozawa, Kenichiro

Abstract

In the present invention, if an amount of regenerative power generated in an electric motor by regenerative braking of a traveling device exceeds an amount of power required by a hydraulic pump, a portion of the regenerative power is stored in an energy storage device.

IPC Classes  ?

  • B60W 20/13 - Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limitsControlling the power contribution of each of the prime movers to meet required power demand in order to prevent overcharging or battery depletion
  • B60K 6/46 - Series type
  • B60L 7/14 - Dynamic electric regenerative braking for vehicles propelled by AC motors
  • B60L 50/61 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
  • B60L 58/15 - Preventing overcharging
  • B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
  • B60W 10/30 - Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
  • E02F 9/20 - DrivesControl devices

43.

WORK MACHINE MOTOR DRIVE ASSEMBLY AND WORK MACHINE

      
Application Number JP2025042752
Publication Number 2026/140822
Status In Force
Filing Date 2025-12-08
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Hayashi, Akane
  • Takeshima, Hiroaki

Abstract

A work machine motor drive assembly according to the present invention comprises a motor, a fixed case, a high-speed rotation mechanism, a housing, and a low-speed rotation mechanism. The fixed case includes a first internal space and a lubricating oil passage. The lubricating oil passage supplies lubricating oil to the first internal space. The high-speed rotation mechanism is provided in the first internal space. The high-speed rotation mechanism is connected to the motor. The high-speed rotation mechanism is lubricated via a dry sump system by the lubricating oil supplied through the lubricating oil passage. The housing includes a second internal space in which lubricating oil is sealed. The housing is rotatably supported by the fixed case. The low-speed rotation mechanism is provided in the second internal space. The low-speed rotation mechanism reduces the speed of rotation by the high-speed rotation mechanism and transmits the rotation to the housing. The low-speed rotation mechanism is lubricated by an oil bath of the lubricating oil in the second internal space.

IPC Classes  ?

  • F16H 57/04 - Features relating to lubrication or cooling
  • F16H 1/46 - Systems consisting of a plurality of gear trains, each with orbital gears
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

44.

MOTOR DRIVE ASSEMBLY FOR WORK MACHINE, AND WORK MACHINE

      
Application Number JP2025042760
Publication Number 2026/140824
Status In Force
Filing Date 2025-12-08
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Hayashi, Akane
  • Takeshima, Hiroaki

Abstract

This motor drive assembly includes a motor, a first planetary gear mechanism, a central shaft, a second planetary gear mechanism, a third planetary gear mechanism, and a housing. The motor includes a motor shaft. The motor shaft, the first planetary gear mechanism, the central shaft, the second planetary gear mechanism, and the third planetary gear mechanism are arranged coaxially with each other. The first planetary gear mechanism is disposed on the outer side of the motor in the axial direction of the motor drive assembly. The third planetary gear mechanism is disposed on the inner side of the second planetary gear mechanism in the axial direction. The housing accommodates the second planetary gear mechanism and a third gear mechanism.

IPC Classes  ?

  • F16H 1/46 - Systems consisting of a plurality of gear trains, each with orbital gears
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

45.

MOTOR DRIVE ASSEMBLY FOR WORK MACHINE, AND WORK MACHINE

      
Application Number JP2025042805
Publication Number 2026/140826
Status In Force
Filing Date 2025-12-08
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Hayashi, Akane
  • Takeshima, Hiroaki

Abstract

This motor drive assembly for a work machine comprises: a motor; a final drive assembly; and a clutch. The final drive assembly includes a gear mechanism and a brake. The gear mechanism transmits rotation from the motor. The brake inhibits the rotation from the motor. The clutch is connected to the motor and the final drive assembly. The clutch connects the motor and the final drive assembly in an engaged state. The clutch releases the motor from the final drive assembly in a disengaged state.

IPC Classes  ?

  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
  • F16D 25/08 - Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
  • F16D 43/286 - Internally controlled automatic clutches actuated by fluid pressure controlled by torque
  • F16D 55/40 - Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or on the brake
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

46.

REMOTE OPERATION SYSTEM FOR WORK MACHINE AND REMOTE OPERATION METHOD FOR WORK MACHINE

      
Application Number JP2025045233
Publication Number 2026/141449
Status In Force
Filing Date 2025-12-24
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Motomura, Takuto
  • Takeda, Kazuma
  • Maeda, Saba

Abstract

This remote operation system for a work machine comprises a processor. The processor acquires a captured image showing an image of a work site for a remotely-operated work machine photographed by an imaging device, acquires work data related to an unmanned vehicle working at the work site, generates a work image representing the work data, and causes a display device disposed outside of the work machine to display the work image together with the captured image.

IPC Classes  ?

  • E02F 3/84 - Drives or control devices therefor
  • E02F 9/20 - DrivesControl devices
  • E02F 9/26 - Indicating devices
  • G05D 1/43 - Control of position or course in two dimensions
  • G05D 1/225 - Remote-control arrangements operated by off-board computers
  • G05D 1/243 - Means capturing signals occurring naturally from the environment, e.g. ambient optical, acoustic, gravitational or magnetic signals
  • H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

47.

HORIZONTAL MACHINE TOOL

      
Application Number JP2025042288
Publication Number 2026/140760
Status In Force
Filing Date 2025-12-04
Publication Date 2026-07-02
Owner KOMATSU NTC LTD. (Japan)
Inventor
  • Horita, Akio
  • Miyazaki, Hiroshi
  • Ohashi, Yasuhiro

Abstract

A horizontal machine tool (horizontal machining center S) according to the present invention comprises: a main spindle head (1H) that rotatably supports, while aligning along the horizontal direction, a main spindle (1) for gripping a machining tool (5a) for machining a workpiece (W) as a machining target and that is supported so as to be movable in the left-right direction, the up-down direction, and the front-rear direction within a machining region; and a table (T) that is disposed so as to be movable in the up-down direction while facing the main spindle head (1H) in the front-rear direction and that holds the workpiece (W) within the machining region.

IPC Classes  ?

  • B23P 23/00 - Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
  • B23C 1/04 - Milling machines not designed for particular work or special operations with a plurality of horizontal working-spindles
  • B23Q 1/48 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
  • B23Q 1/60 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only two sliding pairs only
  • B23Q 3/157 - Arrangements for automatic insertion or removal of tools of rotary tools

48.

TURNING REDUCTION GEAR AND WORK MACHINE

      
Application Number JP2025038022
Publication Number 2026/140494
Status In Force
Filing Date 2025-10-29
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Karasu, Juko
  • Nogi, Yugo
  • Sakai, Kazuyuki
  • Sakai, Yoshihiro
  • Haraguchi, Seiji

Abstract

This turning reduction gear comprises a first planetary gear mechanism, a case, and an oil guide. The first planetary gear mechanism includes a first sun gear, a first planetary gear meshing with the first sun gear, a first carrier engaged with the first planetary gear, and a first ring gear meshing with the first planetary gear. The case accommodates the first planetary gear mechanism. The oil guide is disposed below the first ring gear and protrudes radially inward from the inner surface of the case.

IPC Classes  ?

  • F16H 57/04 - Features relating to lubrication or cooling
  • E02F 9/12 - Slewing or traversing gears
  • F16H 1/46 - Systems consisting of a plurality of gear trains, each with orbital gears

49.

WORK MACHINE CONTROL DEVICE, WORK MACHINE, WORK MACHINE CONTROL SYSTEM, AND WORK MACHINE CONTROL METHOD

      
Application Number JP2025041419
Publication Number 2026/140669
Status In Force
Filing Date 2025-11-27
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Seki, Masanobu
  • Oiwa, Taishi

Abstract

A work machine control device according to the present invention comprises a processor. The processor acquires a work position indicating the position of a work target of a work machine, acquires detection data of a first sensor that detects the absolute position of the work machine, executes, on the basis of the detection data of the first sensor, a first control for controlling a traveling device of the work machine such that the work machine travels to the work position, acquires detection data of a second sensor that detects relative positions between the work machine and the work target, and switches from the first control to a second control for controlling the traveling device such that the work machine travels to the work target on the basis of the detection data of the second sensor.

IPC Classes  ?

  • G05D 1/24 - Arrangements for determining position or orientation
  • E02F 9/20 - DrivesControl devices
  • G05D 1/43 - Control of position or course in two dimensions
  • G08G 1/16 - Anti-collision systems

50.

WORK MACHINE CONTROL DEVICE, WORK MACHINE, WORK MACHINE CONTROL SYSTEM, AND WORK MACHINE CONTROL METHOD

      
Application Number JP2025041513
Publication Number 2026/140674
Status In Force
Filing Date 2025-11-28
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor Oiwa, Taishi

Abstract

This work machine control device comprises a processor. The processor acquires a first work position indicating the position of a first work object of a work machine, controls a travel device of the work machine such that the work machine moves toward the first work position, acquires detection data of an external sensor that detects the relative position between the work machine and the first work object when the work machine moves toward the first work position, determines a first travel route on the basis of the detection data of the external sensor, corrects the first travel route on the basis of the detection data of the external sensor of the work machine, and controls the travel device such that travel is performed following the corrected first travel route.

IPC Classes  ?

  • G05D 1/24 - Arrangements for determining position or orientation
  • E02F 9/20 - DrivesControl devices
  • G05D 1/43 - Control of position or course in two dimensions
  • G08G 1/16 - Anti-collision systems

51.

WORK MACHINE, SYSTEM FOR WORK MACHINE, AND METHOD FOR CONTROLLING WORK MACHINE

      
Application Number JP2025042030
Publication Number 2026/140725
Status In Force
Filing Date 2025-12-02
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Nakagawa, Koudai
  • Hamaguchi, Masahiko

Abstract

A work machine (100) has a fuel cell stack (22), a hydrogen tank (21), a hydrogen valve (24), a body (11), and a controller (30). The fuel cell stack (22) generates electricity by causing oxygen and hydrogen to react. The hydrogen tank (21) supplies hydrogen to the fuel cell stack (22). The hydrogen valve (24) opens and closes a hydrogen flow path from the hydrogen tank (21) to the fuel cell stack (22). The body (11) supports each of the fuel cell stack (22) and the hydrogen tank (21). The controller (30) controls the opening and closing of the hydrogen valve (24) on the basis of the inclination angle of the body (11).

IPC Classes  ?

  • E02F 9/20 - DrivesControl devices
  • E02F 9/00 - Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups
  • E02F 9/24 - Safety devices
  • E02F 9/26 - Indicating devices

52.

WORK MACHINE MOTOR DRIVE ASSEMBLY AND WORK MACHINE

      
Application Number JP2025042810
Publication Number 2026/140828
Status In Force
Filing Date 2025-12-08
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Hayashi, Akane
  • Takeshima, Hiroaki

Abstract

This work machine motor drive assembly comprises a motor, a central shaft, a planetary gear mechanism, a brake, a fixing case, a housing, and a sprocket. The central shaft is fixed to the motor. The planetary gear mechanism includes a sun gear, a first planetary gear, a first ring gear, a second planetary gear, a second ring gear, and a carrier. The sun gear is fixed to the central shaft. The second planetary gear is integrated with the first planetary gear. The carrier supports the first planetary gear and the second planetary gear. The brake is connected to the carrier. The brake is disposed between the motor and the planetary gear mechanism in the axial direction. The second ring gear is fixed to the fixing case. The housing accommodates the planetary gear mechanism. The first ring gear is fixed to the housing.

IPC Classes  ?

  • F16H 1/46 - Systems consisting of a plurality of gear trains, each with orbital gears
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

53.

CONTROL SYSTEM FOR WORK MACHINE AND CONTROL METHOD FOR WORK MACHINE

      
Application Number JP2025045232
Publication Number 2026/141448
Status In Force
Filing Date 2025-12-24
Publication Date 2026-07-02
Owner KOMATSU LTD. (Japan)
Inventor
  • Motomura, Takuto
  • Takeda, Kazuma
  • Maeda, Saba
  • Tanimoto, Takanobu

Abstract

This control system for a work machine includes a processor. The processor sets a plurality of divided areas in a work area where a first work machine and a second work machine will work, designates a first divided area where the first work machine will work from the plurality of divided areas, and, in a state in which the first work machine is present inside the first divided area and the second work machine is present outside the first divided area, establishes, for the first divided area, a virtual wall that restricts the first work machine from advancing from the first divided area and the second work machine from entering the first divided area.

IPC Classes  ?

  • G05D 1/693 - Coordinated control of the position or course of two or more vehicles for avoiding collisions between vehicles
  • E02F 9/20 - DrivesControl devices
  • G05D 1/221 - Remote-control arrangements
  • G05D 1/248 - Arrangements for determining position or orientation using signals provided by artificial sources external to the vehicle, e.g. navigation beacons generated by satellites, e.g. GPS
  • G05D 1/43 - Control of position or course in two dimensions
  • G06Q 50/08 - Construction

54.

SHEET CUTTING DEVICE AND SHEET CUTTING METHOD

      
Application Number 19429610
Status Pending
Filing Date 2025-12-22
First Publication Date 2026-06-25
Owner KOMATSU NTC LTD. (Japan)
Inventor
  • Sakai, Masakazu
  • Yotsu, Takashi
  • Kanehira, Yuji

Abstract

A sheet cutting device cuts an elongated sheet material into a discrete sheet material of a predetermined length, while continuing to convey the elongated sheet material from upstream to downstream, and includes: an upstream conveying mechanism which conveys a sheet material on an upstream side of a cutting position of the sheet material; a downstream conveying mechanism which conveys the sheet material on a downstream side of the cutting position; and a cutting mechanism arranged between the upstream and downstream conveying mechanisms to cut the sheet material, wherein the cutting mechanism includes a cutter moved to follow and cut the conveyed sheet material, and a feed speed of the sheet material set in the downstream conveying mechanism is faster than that set in the upstream conveying mechanism.

IPC Classes  ?

  • B23D 25/04 - Flying shearing machines in which a cutting unit moves bodily with the work while cutting
  • B23D 33/02 - Arrangements for holding, guiding, or feeding work during the operation

55.

WORK MACHINE, OIL DEGRADATION DETERMINATION SYSTEM, AND OIL DEGRADATION DETERMINATION METHOD

      
Application Number JP2025037480
Publication Number 2026/133732
Status In Force
Filing Date 2025-10-24
Publication Date 2026-06-25
Owner KOMATSU LTD. (Japan)
Inventor
  • Sasaki, Takatoshi
  • Nishimura, Takuma

Abstract

A work machine (1) comprises a clutch (23), a first control valve apparatus (41), and a controller (48). The first control valve apparatus (41) adjusts hydraulic pressure that is supplied to the clutch (23). The controller (48) outputs a command current (I) for controlling the first control valve apparatus (41). On the basis of the value of the command current (I), the controller (48) determines whether oil that operates the clutch (23) has deteriorated.

IPC Classes  ?

  • F16H 61/02 - Control functions within change-speed- or reversing-gearings for conveying rotary motion characterised by the signals used
  • F16D 48/02 - Control by fluid pressure
  • F16H 59/72 - Inputs being a function of gearing status dependent on oil characteristics, e.g. temperature, viscosity

56.

DISPLAY SYSTEM OF WORK SITE AND DISPLAY METHOD OF WORK SITE

      
Application Number 19126632
Status Pending
Filing Date 2023-10-25
First Publication Date 2026-06-25
Owner KOMATSU LTD. (Japan)
Inventor
  • Ozaki, Masataka
  • Tagawa, Yoshihiro
  • Motomura, Takuto
  • Tsumura, Souichi
  • Shimizu, Osamu
  • Okada, Takashi

Abstract

A display system of a work site includes: a current topography data reception unit that receives current topography data of a work site where a bulldozer performs slot dozing; and a display control unit that causes a display device to display the current topography data. The display control unit causes the display device to display a first symbol indicating a position of a cliff that exists in an excavation lane of the slot dozing together with the current topography data.

IPC Classes  ?

  • E02F 9/26 - Indicating devices
  • E02F 3/43 - Control of dipper or bucket positionControl of sequence of drive operations
  • E02F 3/76 - Graders, bulldozers, or the like with scraper plates or ploughshare-like elementsLevelling devices
  • E02F 9/20 - DrivesControl devices
  • E02F 9/22 - Hydraulic or pneumatic drives

57.

HYDRAULIC VALVE AND HYDRAULIC CIRCUIT

      
Application Number 18850086
Status Pending
Filing Date 2023-04-04
First Publication Date 2026-06-25
Owner Komatsu Ltd. (Japan)
Inventor
  • Ikeda, Masatoshi
  • Sumino, Wataru
  • Akamatsu, Takashi

Abstract

A hydraulic valve includes: a valve main body having a first port and a second port; and a spool movable along an axial center with respect to the valve main body. Further, the spool is provided with a main passage portion, a first passage portion, and a second passage portion, an opening area of the first passage portion with respect to the first port is changed, and flow rate control of oil from the first port to the second port through the main passage portion is performed, a plurality of the first passage portions is provided in the spool in, and the main passage portion of the spool has a first region, a second region, and a third region, an inner diameter of the first region being formed larger than that of the second region, and the third region being formed in a tapered shape.

IPC Classes  ?

  • F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
  • F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor

58.

CHAMBER APPARATUS FOR LASER, LASER APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19377418
Status Pending
Filing Date 2025-11-03
First Publication Date 2026-06-25
Owner Gigaphoton Inc. (Japan)
Inventor Ito, Ryota

Abstract

A chamber apparatus for a laser includes a chamber, a first optical path tube, a window, a resonance vessel, and a nozzle tube. In the chamber, a pair of discharge electrodes are disposed. The first optical path tube communicates with the chamber. The window is configured such that light is incident thereon from a region between the discharge electrodes via an interior of the first optical path tube. The nozzle tube is configured to cause the interior of the first optical path tube to communicate with the resonance vessel.

IPC Classes  ?

  • H01S 3/034 - Optical devices within, or forming part of, the tube, e.g. windows, mirrors
  • H01S 3/036 - Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering or replenishingMeans for circulating the gas, e.g. for equalising the pressure within the tube

59.

FORESTRY MACHINE AND ARTICULATED FORESTRY VEHICLE

      
Application Number EP2025088553
Publication Number 2026/132544
Status In Force
Filing Date 2025-12-19
Publication Date 2026-06-25
Owner KOMATSU FOREST AB (Sweden)
Inventor Pettersson, Henry

Abstract

A forestry machine, comprising: a frame portion (1) extending in a longitudinal direction and having a top (2), a bottom (3) and opposing sides (4, 5), together defining therein an interior space (6); the interior space (6) being delimited at the bottom (3) by longitudinally extending rough-terrain-protection plates (7) and at the top (2) by a sub-system (8) of the forestry machine; a drive assembly (9) fastened to the frame portion (1) and having, outside the interior space (6), ground-engaging members (10) located at the opposing sides (4, 5) and, inside the interior space (6), a torque-receiving input shaft (11) drivingly connected to the ground-engaging members (10); an electric motor (12) arranged inside the interior space (6) and having a torque-providing motor output shaft (13) connected to the torque-receiving input shaft (11); and an intermediate gear arrangement (14) configured to transfer torque between the motor output shaft (13) and the input shaft (11); wherein the intermediate gear arrangement (14) comprises a gearbox (15) and a drop box (16), wherein the motor output shaft (13) is connected to the input shaft (11) via the drop box (16) and the gearbox (15), and wherein the motor output shaft (13) is parallel to and has an upward offset (y1) towards the top (2) and a sideways offset (x1) towards one of the opposing sides (4, 5) relative to the input shaft (11).

IPC Classes  ?

  • B60K 17/356 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
  • B60K 1/00 - Arrangement or mounting of electrical propulsion units
  • E02F 9/08 - SuperstructuresSupports for superstructures

60.

AIR INTAKE STRUCTURE AND LIMB RISER FOR WORK VEHICLE

      
Document Number 03293613
Status Pending
Filing Date 2025-11-26
Open to Public Date 2026-06-21
Owner Komatsu America Corp. (USA)
Inventor
  • Hartigan, Colin
  • Huelman, Gene

Abstract

A limb riser structure for a work vehicle includes an attachment structure, a support structure, and a limb riser. The attachment structure is attached to an end portion of a vehicle body of the work vehicle. The support structure is disposed in a position between a cab of the work vehicle and the end portion of the vehicle body. The limb riser has a first attaching portion attached to the attachment structure and a second attaching portion attached to the support structure. The limb riser extends toward the cab from the attachment structure. An air intake structure includes a first pillar and a second pillar attached to the work vehicle in an upright orientation. The first pillar and the second pillar are spaced apart in a widthwise direction and form a duct. The first pillar and the second pillar may be part of the support structure.

IPC Classes  ?

  • B60R 19/16 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section having deflecting members, e.g. rollers, balls
  • B60R 19/54 - Obstruction removers or deflectors
  • F02M 35/02 - Air cleaners
  • F02M 35/10 - Air intakesInduction systems
  • F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles

61.

BUCKET LIP STABILIZER STRUCTURE

      
Document Number 03310985
Status Pending
Filing Date 2018-08-03
Open to Public Date 2026-06-21
Owner HENSLEY INDUSTRIES, INC. (USA)
Inventor
  • Jakubisin, John Scott
  • Aug, Keith Daniel
  • Bilal, Mohamad Youssef

Abstract

A stabilizer structure includes an elongated main body portion having an upper portion with outward-facing side surfaces and a lower portion below the upper portion, the lower portion being greater in width than the upper portion. The stabilizer structure also includes a hole in a top surface of the upper portion. The stabilizer also includes a forward portion integrated with the main body portion as a single monolithic piece. The forward portion includes a bridge section, a first prong extending from the bridge section, and a second prong extending from the bridge section. The first prong, second prong, and bridge section share a single forward- facing curved surface and a single rear-facing curved surface, the forward-facing curved surface having a different curve than the rear-facing curved surface.

IPC Classes  ?

62.

REINFORCED WEAR MEMBER

      
Document Number 03312782
Status Pending
Filing Date 2023-04-03
Open to Public Date 2026-06-21
Owner HENSLEY INDUSTRIES, INC. (USA)
Inventor Zelkovich, Evan M.

Abstract

A method of manufacturing a reinforced wear member. The method may include the steps of: providing a mold comprising one or more parts, the mold having a cavity in the shape of a wear member for attachment to excavating equipment; placing one or more restraints at the top of the mold; placing an abrasive resistant core in the mold below the one or more restraints, the core having a front end and an opposing back end, the height of the front end being less than a height of the back end; and filling the mold with liquefied steel such that the core rising upward to contact the one or more restraints, the steel being less abrasive resistant than the core, during filling the mold.

63.

DETERMINATION SYSTEM OF WORK SITE AND DETERMINATION METHOD OF WORK SITE

      
Application Number 19127126
Status Pending
Filing Date 2023-10-25
First Publication Date 2026-06-18
Owner KOMATSU LTD. (Japan)
Inventor
  • Tagawa, Yoshihiro
  • Tanimoto, Takanobu
  • Tsumura, Souichi
  • Ando, Tomoki
  • Nakano, Kei

Abstract

A determination system of a work site includes: a current topography data reception unit that receives current topography data of a work site where a bulldozer performs slot dozing; and a determination unit that determines propriety of implementation of the slot dozing on a basis of an inclination angle of at least a part of an excavation lane of the slot dozing.

IPC Classes  ?

  • E02F 3/84 - Drives or control devices therefor
  • E02F 3/43 - Control of dipper or bucket positionControl of sequence of drive operations
  • E02F 3/76 - Graders, bulldozers, or the like with scraper plates or ploughshare-like elementsLevelling devices
  • E02F 9/20 - DrivesControl devices
  • E02F 9/26 - Indicating devices

64.

VEHICLE WITH LIQUID HYDROGEN FUEL CELL ENERGY SYSTEM

      
Application Number 19417062
Status Pending
Filing Date 2025-12-11
First Publication Date 2026-06-18
Owner Komatsu America Corp. (USA)
Inventor
  • Leesman, Kory
  • Uppole, Zachary Charles

Abstract

A liquid hydrogen fuel cell power system for a vehicle includes a liquid hydrogen storage container and a heat exchanger fluidly connected to the liquid hydrogen storage container. The heat exchanger is configured to convert, e.g., vaporize, liquid hydrogen from the liquid hydrogen storage container to gaseous hydrogen. A fuel cell is fluidly connected to the heat exchanger. The fuel cell is configured to generate electrical energy from the gaseous hydrogen. The electrical energy is used to provide power to the vehicle.

IPC Classes  ?

  • B60L 50/71 - Arrangement of fuel cells within vehicles specially adapted for electric vehicles
  • B60K 15/01 - Arrangement of fuel conduits
  • B60K 15/03 - Fuel tanks

65.

LASER APPARATUS AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19532569
Status Pending
Filing Date 2026-02-06
First Publication Date 2026-06-18
Owner
  • Gigaphoton Inc. (Japan)
  • Inter-University Research Institute Corporation, National Institutes of Natural Sciences (Japan)
Inventor
  • Tamaru, Yuki
  • Miura, Taisuke
  • Yasuhara, Ryo

Abstract

A laser apparatus according to an aspect of the present disclosure includes: an optical isolator disposed in an optical path between an oscillation-stage laser and an amplification-stage laser configured to amplify, as seed light, linearly polarized pulse laser light output from the oscillation-stage laser and having an ultraviolet wavelength, the optical isolator including a first Faraday rotator configured to rotate a polarization direction of the pulse laser light output from the oscillation-stage laser by a first angle in a first rotation direction by a magnetic field in a first direction, a first polarizer having normalized transmittance greater than or equal to 0.9 for the pulse laser light output from the first Faraday rotator, and a second Faraday rotator configured to rotate the polarization direction of the pulse laser light passing through the first polarizer by a second angle in a second rotation direction opposite to the first rotation direction by a magnetic field in a second direction opposite to the first direction; and a second polarizer disposed in an optical resonator of the amplification-stage laser and having normalized transmittance greater than or equal to 0.9 for the seed light.

IPC Classes  ?

  • H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
  • G03F 7/20 - ExposureApparatus therefor
  • H01S 3/08 - Construction or shape of optical resonators or components thereof
  • H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media

66.

WORK MACHINE

      
Application Number JP2025040227
Publication Number 2026/126745
Status In Force
Filing Date 2025-11-18
Publication Date 2026-06-18
Owner KOMATSU LTD. (Japan)
Inventor Kunugise Hisashi

Abstract

A shovel 100 comprises a body portion 1 including at least a work implement 10, and a tilt floor 7 disposed on the body portion 1, wherein the tilt floor 7 is configured to be capable of tilting up and tilting down with respect to the body portion 1. The shovel 100 comprises: a torsion bar 9 comprising a linear portion 9a that generates a torsional force, a movable end 9b that extends from one end of the linear portion 9a and is rotatable to tilt up the tilt floor 7 by the torsional force, and a fixed end 9c that extends from the other end of the linear portion 9a and is fixed to a fixed frame 12 with which the body portion 1 is provided; and a fixed end position adjustment mechanism 20a configured to be capable of adjusting the position of the fixed end 9c of the torsion bar 9 in a direction intersecting the longitudinal direction of the linear portion 9a of the torsion bar 9.

IPC Classes  ?

  • E02F 9/16 - Cabins, platforms, or the like for the driver
  • B62D 33/067 - Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable

67.

WORK MACHINE, DISPLAY CONTROL SYSTEM, AND DISPLAY CONTROL METHOD

      
Application Number JP2025040254
Publication Number 2026/126748
Status In Force
Filing Date 2025-11-18
Publication Date 2026-06-18
Owner KOMATSU LTD. (Japan)
Inventor
  • Nagami, Koji
  • Kotaki, Hirofumi
  • Ishibashi, Eiji
  • Harada, Junji
  • Kinoshita, Soichiro
  • Yatsuda, Osamu
  • Takahashi, Yuya
  • Kure, Kazuki

Abstract

The present invention improves monitor visibility and operability. This work machine comprises: a vehicle body; a cab that is mounted on the vehicle body; and a traveling device that supports the vehicle body in a manner that allows traveling. The cab has: a driver's seat that is disposed in the cab and has a seat surface; a front monitor that is provided in front of the driver's seat; and a first front lateral monitor that is provided at the rear of the front monitor. The work machine further comprises a controller. The controller acquires the traveling state of the traveling device, and displays information about work that uses information communication technology by switching display content on the front monitor and/or the first front lateral monitor on the basis of the acquired traveling state.

IPC Classes  ?

  • E02F 9/26 - Indicating devices
  • B60K 35/22 - Display screens
  • B60K 35/29 - Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
  • B60K 35/40 - Instruments specially adapted for improving the visibility thereof to the user, e.g. fogging prevention or anti-reflection arrangements
  • B60K 35/60 - Instruments characterised by their location or relative disposition in or on vehicles

68.

WORK MACHINE

      
Application Number 18709987
Status Pending
Filing Date 2022-11-15
First Publication Date 2026-06-11
Owner KOMATSU LTD. (Japan)
Inventor Mochimaru, Yuya

Abstract

A work machine includes a vehicle body, a counterweight attachable to and detachable from the vehicle body, an attachment and detachment device disposed in a storage portion provided in the counterweight, and an upper surface cover attached to an upper side of the attachment and detachment device. The counterweight is attached to the vehicle body. The attachment and detachment device expands and contracts in an up-and-down direction through an opening provided above the storage portion in attachment of the counterweight to and detachment of the counterweight from the vehicle body. The upper surface cover is configured to move in the up-and-down direction as the attachment and detachment device extends and retracts. The upper surface cover is configured to close the opening at a lowest position.

IPC Classes  ?

69.

WORK VEHICLE

      
Application Number 18717422
Status Pending
Filing Date 2022-12-08
First Publication Date 2026-06-11
Owner KOMATSU LTD. (Japan)
Inventor
  • Sakuma, Go
  • Hoshino, Yuta

Abstract

A work vehicle includes an electric motor, a traveling body, and a cooling apparatus. The traveling body is driven by the electric motor. The cooling apparatus is driven by regenerative electric power from the electric motor generated by braking of the traveling body, and cools equipment provided in the work vehicle.

IPC Classes  ?

  • B60L 50/70 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
  • B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
  • B60L 7/24 - Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
  • B60L 58/33 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load by cooling
  • F16D 65/78 - Features relating to cooling

70.

TRACK ASSEMBLY FOR A WORK MACHINE AND A WORK MACHINE COMPRISING SAID TRACK ASSEMBLY

      
Application Number EP2025085674
Publication Number 2026/120147
Status In Force
Filing Date 2025-12-05
Publication Date 2026-06-11
Owner KOMATSU FOREST AB (Sweden)
Inventor
  • Aronsson, Anton
  • Olsson, Adam

Abstract

A track assembly (100) of a work machine, the track assembly comprising a supporting element (110) extending along a longitudinal direction, DL, an endless track (120), a sprocket (130) arranged to drive the endless track, and a road wheel module (140) The road wheel module comprises a bogie arm suspension member (150) arranged to be rotatably mounted to the supporting element to allow rotation relative a parallel rotation axis, AP, parallel to the longitudinal direction, DL, and at least two bogie arms (160) rotatably mounted to the bogie arm suspension member to allow rotation relative a transverse rotation axis, AT, transverse to the longitudinal direction, DL. The bogie arms are mounted on opposite sides of the bogie arm suspension member relative the bogie parallel rotation axis, AP, wherein each bogie arm carries at least two road wheels (170) located at opposite sides of the bogie transverse rotation axis, AT.

IPC Classes  ?

  • B62D 55/092 - Endless-track unitsParts thereof with lubrication means
  • B62D 55/065 - Multi-track vehicles, i.e. more than two tracks
  • B62D 55/06 - Endless-track vehicles with tracks and without ground wheels
  • B62D 55/10 - BogiesFrames
  • B62D 55/14 - Arrangement, location, or adaptation of rollers
  • B62D 55/104 - Suspension devices for wheels, rollers, bogies or frames
  • B62D 55/116 - Attitude or position control of chassis by action on suspension, e.g. to compensate for a slope

71.

MANAGEMENT SYSTEM OF UNMANNED DUMP TRUCK AND MANAGEMENT METHOD OF UNMANNED DUMP TRUCK

      
Application Number 19126636
Status Pending
Filing Date 2023-10-20
First Publication Date 2026-06-11
Owner KOMATSU LTD. (Japan)
Inventor
  • Konishi, Shota
  • Sakai, Atsushi
  • Yoshimatsu, Akihiro

Abstract

A management system of an unmanned dump truck includes: a path generation unit configured to generate a path indicating a target traveling route of an unmanned dump truck such that the unmanned dump truck enters a discharging point; and an assignment unit configured to assign a second discharging point and a second path to enter the second discharging point to a second unmanned dump truck, based on a first discharging point and a first path to enter the first discharging point assigned to a first unmanned dump truck.

IPC Classes  ?

  • G05D 1/667 - Delivering or retrieving payloads
  • G05D 1/644 - Optimisation of travel parameters, e.g. of energy consumption, journey time or distance
  • G05D 1/656 - Interaction with payloads or external entities
  • G05D 1/69 - Coordinated control of the position or course of two or more vehicles
  • G05D 105/28 - Specific applications of the controlled vehicles for transportation of freight

72.

IMAGE CORRECTION DEVICE, IMAGE CORRECTION METHOD, AND REMOTE OPERATION SYSTEM

      
Application Number 18723931
Status Pending
Filing Date 2023-01-23
First Publication Date 2026-06-11
Owner Komatsu Ltd. (Japan)
Inventor Matsumura, Yukinori

Abstract

An image correction device includes an image acquisition unit configured to acquire an image captured by an imaging device provided in a work machine which is remotely operated, a vibration information acquisition unit configured to acquire vibration information indicating a vibration of the work machine, a swing detection unit configured to detect that a swing body of the work machine is in progress of a swing, and a blur correction unit configured to perform blur correction of the image based on the vibration information and to invalidate blur correction for a yaw axis direction of the image during the swing.

IPC Classes  ?

  • H04N 23/68 - Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
  • E02F 9/26 - Indicating devices

73.

TOOL CONTROL SYSTEM FOR WORK VEHICLE

      
Application Number 19181764
Status Pending
Filing Date 2025-04-17
First Publication Date 2026-06-11
Owner Komatsu America Corp. (USA)
Inventor Huntington, Jeffrey Bertrand

Abstract

A work vehicle includes a main body, a boom connected to the main body, an arm connected to the boom, and a tool connected to the arm. A tool control system for the work vehicle includes a boom cylinder to extend the boom from and retract the boom to the main body, an arm cylinder to extend the arm from and retract the arm to the boom, a first input device to input intentions of an operator based on manipulation directions of the first input device, and a controller that controls the boom and arm cylinders in coordination with each other in response to the manipulation directions of the first input device. The controller extends the arm cylinder and retracts the boom cylinder in coordination with each other so that the tool moves away from the main body based on manipulation of the first input device in a first direction.

IPC Classes  ?

74.

LASER PROCESSING APPARATUS AND METHOD FOR PROCESSING WORKPIECE

      
Application Number 19178060
Status Pending
Filing Date 2025-04-14
First Publication Date 2026-06-11
Owner Gigaphoton Inc. (Japan)
Inventor Shimbori, Masashi

Abstract

A laser processing apparatus includes a placement base on which a workpiece is placed, a beam shaping optical system configured to shape laser light in such a way that a laser light irradiated region of a mask configured to block part of the laser light has a rectangular shape having short edges and long edges, a second radiation width of the irradiated region in the direction parallel to the long edges being changeable independently of a first radiation width of the irradiated region in the direction parallel to the short edges, and the irradiated region being movable in the direction parallel to the long edges, a projection optical system configured to project a pattern of the mask on the workpiece placed on the placement base, and a mover configured to be capable of moving the irradiated region in the direction parallel to the short edges.

IPC Classes  ?

  • B23K 26/066 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • B23K 26/064 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
  • B23K 26/073 - Shaping the laser spot
  • B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head

75.

TRAINING DATA CREATION METHOD, MACHINE LEARNING METHOD, CONSUMABLE MANAGEMENT DEVICE, AND COMPUTER READABLE MEDIUM

      
Application Number 19538062
Status Pending
Filing Date 2026-02-12
First Publication Date 2026-06-11
Owner Gigaphoton Inc. (Japan)
Inventor Abe, Kunihiko

Abstract

A training data creation method according to an aspect of the present disclosure is used for machine learning of a learning model for predicting lifetime of a consumable of a laser device. The method includes acquiring first lifetime-related information including data of at least one lifetime-related parameter of the consumable recorded in association with each of numbers of oscillation pulses during a period from start of use to replacement of the consumable, determining a first deterioration degree of the consumable based on the number of oscillation pulses, determining a second deterioration degree of the consumable based on the at least one lifetime-related parameter, determining a third deterioration degree of the consumable based on the first deterioration degree and the second deterioration degree, and creating training data in which the first lifetime-related information and the third deterioration degree are associated with each other.

IPC Classes  ?

  • G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting
  • G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
  • G01N 21/39 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers

76.

WORK VEHICLE MANAGEMENT DEVICE, SYSTEM, AND WORK VEHICLE MANAGEMENT METHOD

      
Application Number 18704548
Status Pending
Filing Date 2022-11-09
First Publication Date 2026-06-04
Owner Komatsu Ltd. (Japan)
Inventor Ebisuzaki, Hideyo

Abstract

A measured value acquisition unit acquires a measured value of a pressure of a hydrogen tank of each of a plurality of work vehicles, on which the hydrogen tanks are mounted, and a measured value of a pressure of a pressure accumulator of a hydrogen station where the hydrogen tanks are filled with a hydrogen gas. An estimation unit estimates a value related to a filling time of the hydrogen gas at the hydrogen station for the plurality of work vehicles based on the measured values of the pressures. The determination unit determines filling timings of the hydrogen gas for the plurality of work vehicles such that the total of the filling times is minimized based on the value related to the filling time.

IPC Classes  ?

  • F17C 13/02 - Special adaptations of indicating, measuring, or monitoring equipment
  • F17C 5/06 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with compressed gases

77.

WORK MACHINE AND METHOD FOR CONTROLLING WORK MACHINE

      
Application Number 19123594
Status Pending
Filing Date 2023-09-12
First Publication Date 2026-06-04
Owner KOMATSU LTD. (Japan)
Inventor Takeno, Akira

Abstract

A work machine includes a drive source, a transmission, a travel device, a brake device, and a controller. The transmission is connected to the drive source. The travel device is connected to the transmission and causes the work machine to travel. The brake device brakes the travel device. The controller acquires a brake command in order to brake the work machine. The controller determines a target braking force in response to the brake command. The controller acquires transmission information indicating a state of the transmission. The controller calculates an inertial braking force from the transmission based on the transmission information. The controller controls a braking force of the brake device based on a difference between the target braking force and the inertial braking force.

IPC Classes  ?

  • B60T 7/04 - Brake-action initiating means for personal initiation foot-actuated
  • B60T 8/17 - Using electrical or electronic regulation means to control braking
  • B60T 8/40 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
  • B60T 13/14 - Pressure supply arrangements using accumulators or reservoirs
  • B60T 13/66 - Electrical control in fluid-pressure brake systems
  • B60T 13/68 - Electrical control in fluid-pressure brake systems by electrically-controlled valves
  • B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

78.

LASER CHAMBER AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19381745
Status Pending
Filing Date 2025-11-06
First Publication Date 2026-06-04
Owner Gigaphoton Inc. (Japan)
Inventor
  • Ohga, Hitoshi
  • Yamanouchi, Youichi

Abstract

A laser chamber includes a container configured to accommodate a laser gas; a pair of discharge electrodes; a fan configured to cause the laser gas to circulate; a first guide including a first surface and a second surface, the first surface being configured to guide the laser gas therealong, and the second surface and an inner surface of the container forming a first space that narrows in a first direction toward depth; and a second guide including a third surface configured to guide the laser gas therealong toward a vicinity of the first guide.

IPC Classes  ?

  • H01S 3/036 - Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering or replenishingMeans for circulating the gas, e.g. for equalising the pressure within the tube

79.

WORK MACHINE, AND CONTROL METHOD AND CONTROL SYSTEM FOR WORK MACHINE

      
Application Number JP2025038010
Publication Number 2026/115994
Status In Force
Filing Date 2025-10-29
Publication Date 2026-06-04
Owner KOMATSU LTD. (Japan)
Inventor
  • Yamawaki, Masaki
  • Noborio, Daichi

Abstract

According to the present invention, a control device determines an operation amount of each of a pair of left and right traveling devices for a control point of a work machine to move along a target route, using a traveling model. The traveling model is a model that estimates a state of a vehicle body following a unit time amount, from the position of the work machine and the operation amounts of the pair of left and right traveling devices.

IPC Classes  ?

  • E02F 9/20 - DrivesControl devices
  • B60W 30/10 - Path keeping
  • B60W 50/00 - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit
  • E02F 9/26 - Indicating devices

80.

CAB AND WORKING MACHINE

      
Application Number JP2025039451
Publication Number 2026/116079
Status In Force
Filing Date 2025-11-11
Publication Date 2026-06-04
Owner KOMATSU LTD. (Japan)
Inventor
  • Kotaki, Hirofumi
  • Nagami, Kouji
  • Miyachi, Akihiro
  • Miyazaki, Masamichi
  • Takahashi, Yohei

Abstract

The present invention reduces the movement amount of the line-of-sight of an operator. A driver's seat (31) is disposed in a cab and has a seat surface. A front window (W1) is provided at the center of the front surface portion of the cab. A right window (W2) is provided right rearward of the front window (W1). A left window (W3) is provided left rearward of the front window (W1). A right pillar (43) is disposed rearward of the right window (W2) and forward of the center of the seat surface of the driver's seat (31). A left pillar (44) is disposed rearward of the left window (W3) and forward of the center of the seat surface of the driver's seat (31). A first forward lateral monitor (50) and a second forward lateral monitor (60) are provided to the right pillar (43). The first forward lateral monitor (50) and the second forward lateral monitor (60) are adjacent to each other in the vertical direction.

IPC Classes  ?

81.

WORK STATE ESTIMATION SYSTEM FOR WORK MACHINE, AND WORK STATE ESTIMATION METHOD FOR WORK MACHINE

      
Application Number 19121197
Status Pending
Filing Date 2023-08-30
First Publication Date 2026-05-28
Owner KOMATSU LTD. (Japan)
Inventor
  • Kumagai, Toshiaki
  • Kuramatsu, Ryouhei
  • Koyama, Motoki
  • Yamanaka, Nobuyoshi

Abstract

A work state estimation system for a work machine includes an inclination angle acquisition unit configured to acquire an inclination angle of a work machine, and a work state estimation unit configured to estimate a work state of the work machine on the basis of a change in the inclination angle. The inclination angle includes at least a pitch angle.

IPC Classes  ?

82.

LASER CHAMBER, GAS LASER APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19347648
Status Pending
Filing Date 2025-10-01
First Publication Date 2026-05-28
Owner Gigaphoton Inc. (Japan)
Inventor Ogawa, Takuya

Abstract

A laser chamber according to an aspect of the present disclosure includes a container, a first electrode, a second electrode, and a sound absorber. The container is filled with a laser gas. The first electrode is disposed in the container. The second electrode is disposed in the container and faces the first electrode. The sound absorber is disposed on at least one of an upstream side and a downstream side of the laser gas from the first electrode. The sound absorber is configured to cause a propagation speed of an acoustic wave generated in a discharge space between the first electrode and the second electrode to decrease as a distance from the discharge space increases.

IPC Classes  ?

  • H01S 3/032 - Constructional details of gas laser discharge tubes for confinement of the discharge, e.g. by special features of the discharge constricting tube
  • H01S 3/038 - Electrodes, e.g. special shape, configuration or composition

83.

PULSE LASER POWER SOURCE, PULSE LASER DEVICE, AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19348385
Status Pending
Filing Date 2025-10-02
First Publication Date 2026-05-28
Owner Gigaphoton Inc. (Japan)
Inventor Ueyama, Takeshi

Abstract

A pulse laser power source includes a step-up transformer in which a pulse current flows to a primary side, a first magnetic pulse compression circuit transferring charge of the first transfer capacitor to a second transfer capacitor, a second magnetic pulse compression circuit transferring charge of the second transfer capacitor to a peaking capacitor, a reset circuit including reset windings performing magnetic reset, and a series circuit of a resistor and an inductor connected in parallel to the peaking capacitor. A resistance value of the resistor is in a range of 100 to 1000Ω inclusive. An inductance L of the inductor satisfies ((ωL)2+R2)1/2>1/ωCp and L≤(1/Rep−Tm)×R/2, where a capacitance of the peaking capacitor is Cp, a resonance angular frequency during transfer of charge from the second transfer capacitor to the peaking capacitor is ω, a repetition frequency is Rep, and a required time for the magnetic reset is Tm.

IPC Classes  ?

  • H03K 3/57 - Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a semiconductor device
  • H01S 3/097 - Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
  • H01S 3/0975 - Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser using inductive or capacitive excitation

84.

WORK MACHINE, CAB HEATING SYSTEM, AND CAB HEATING METHOD

      
Application Number JP2025040252
Publication Number 2026/110765
Status In Force
Filing Date 2025-11-18
Publication Date 2026-05-28
Owner KOMATSU LTD. (Japan)
Inventor
  • Nakagawa, Koudai
  • Hamaguchi, Masahiko

Abstract

This work machine comprises: a fuel cell-related component; a heater core mounted in a cab; an electric heater; and piping that has an electromagnetic switching valve and in which a liquid flows. The piping selectively forms a first circulation flow path and a second circulation flow path by switching the electromagnetic switching valve. The first circulation flow path is configured to allow the liquid to circulate only through the electric heater, among the electric heater and the fuel cell-related component, and also through the heater core. The second circulation flow path is configured to allow the liquid to circulate only through the fuel cell-related component, among the electric heater and the fuel cell-related component, and also through the heater core.

IPC Classes  ?

  • E02F 9/16 - Cabins, platforms, or the like for the driver
  • B60H 1/22 - Heating, cooling or ventilating devices the heat being derived otherwise than from the propulsion plant
  • B60K 8/00 - Arrangement or mounting of propulsion units not provided for in one of main groups

85.

WORK MACHINE, CONTROLLER FOR WORK MACHINE, AND CONTROL METHOD FOR WORK MACHINE

      
Application Number 19123499
Status Pending
Filing Date 2023-09-27
First Publication Date 2026-05-28
Owner KOMATSU LTD. (Japan)
Inventor Okamune, Yuki

Abstract

A decrease in work efficiency is suppressed. A work machine includes a front wheel, a front wheel drive device that rotationally drives the front wheel, a rear wheel, a rear wheel drive device that rotationally drives the rear wheel, and a controller that controls a speed ratio that is a ratio of a speed of the front wheel to a speed of the rear wheel. The controller determines whether a predetermined variation occurs in a driving force applied to the front wheel, and when it is determined that the predetermined variation occurs, the controller reduces the speed ratio and thus eliminates the predetermined variation, and when the predetermined variation is eliminated, the controller increases the speed ratio.

IPC Classes  ?

86.

AIR INTAKE STRUCTURE AND LIMB RISER FOR WORK VEHICLE

      
Application Number 19402459
Status Pending
Filing Date 2025-11-26
First Publication Date 2026-05-28
Owner Komatsu America Corp. (USA)
Inventor
  • Hartigan, Colin
  • Huelman, Gene

Abstract

A limb riser structure for a work vehicle includes an attachment structure, a support structure, and a limb riser. The attachment structure is attached to an end portion of a vehicle body of the work vehicle. The support structure is disposed in a position between a cab of the work vehicle and the end portion of the vehicle body. The limb riser has a first attaching portion attached to the attachment structure and a second attaching portion attached to the support structure. The limb riser extends toward the cab from the attachment structure. An air intake structure includes a first pillar and a second pillar attached to the work vehicle in an upright orientation. The first pillar and the second pillar are spaced apart in a widthwise direction and form a duct. The first pillar and the second pillar may be part of the support structure.

IPC Classes  ?

  • B60R 21/11 - Overhead guards, e.g. against loads falling down
  • B60K 13/02 - Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
  • B62D 25/12 - Parts or details thereof
  • B62D 33/06 - Drivers' cabs
  • B62D 33/067 - Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable

87.

PAYLOAD CALCULATION SYSTEM FOR WORK MACHINE, WORK MACHINE, AND PAYLOAD CALCULATION METHOD FOR WORK MACHINE

      
Application Number JP2025035263
Publication Number 2026/110506
Status In Force
Filing Date 2025-10-03
Publication Date 2026-05-28
Owner KOMATSU LTD. (Japan)
Inventor
  • Tsujimoto, Naoki
  • Shioiri, Masataka

Abstract

A work machine (40) is attached to a revolving superstructure (30) and comprises a boom (41) and a bucket (43). A controller (10) calculates a confirmed payload value on the basis of a carry-back instantaneous value calculated after a load in the bucket (43) has been discharged and loaded onto a loading target (60), and before the start of a lowering operation of the boom (41) during unloaded turning of the revolving superstructure (30).

IPC Classes  ?

88.

EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19353140
Status Pending
Filing Date 2025-10-08
First Publication Date 2026-05-21
Owner Gigaphoton Inc. (Japan)
Inventor Kitasaka, Shogo

Abstract

An extreme ultraviolet light generation system generating extreme ultraviolet light by irradiating targets with pulse laser light includes a chamber; a target supply unit configured to continuously generate the targets at a specific time interval and supply the targets into the chamber; a timing sensor configured to detect the target passing through a first region and output a signal; a laser device configured to radiate the pulse laser light toward the target having passed through the first region; and a processor configured to obtain first time when a first target has passed through the first region from the signal and second time when a second target generated immediately before the first target has passed through the first region, and determine a timing at which the first target is irradiated with the pulse laser light of the laser device based on the first time, the second time, and the time interval.

IPC Classes  ?

  • H05G 2/00 - Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma
  • G01N 21/956 - Inspecting patterns on the surface of objects
  • G03F 1/22 - Masks or mask blanks for imaging by radiation of 100 nm or shorter wavelength, e.g. X-ray masks, extreme ultraviolet [EUV] masksPreparation thereof
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor

89.

WORK MACHINE AND METHOD FOR CONTROLLING WORK MACHINE

      
Application Number 19119183
Status Pending
Filing Date 2023-09-25
First Publication Date 2026-05-21
Owner KOMATSU LTD. (Japan)
Inventor Takenaka, Yuita

Abstract

A work machine includes: a detection unit that detects an articulation angle; a hydraulic cylinder for steering; an operation apparatus that receives an input of an operation command from an operator to drive the hydraulic cylinder for steering; a control valve that controls an amount of driving of the hydraulic cylinder for steering; and a controller that outputs a command current that causes the control valve to operate in response to the operation command of the operation apparatus. The controller executes a calibration mode for correcting the command current corresponding to the operation command of the operation apparatus and causing the control valve to operate. In the calibration mode, the controller cuts off the command current to the control valve when the articulation angle becomes equal to or larger than a prescribed angle.

IPC Classes  ?

90.

LASER APPARATUS AND METHOD OF MANUFACTURING ELECTRONIC DEVICE

      
Application Number 19441808
Status Pending
Filing Date 2026-01-06
First Publication Date 2026-05-21
Owner Gigaphoton Inc. (Japan)
Inventor Fujimaki, Yousuke

Abstract

A laser apparatus includes a laser oscillator including an optical resonator and a pair of electrodes that apply a voltage to a laser gas to cause discharge, and configured to output a first pulse laser beam, a first optical pulse stretcher configured to output a second pulse laser beam for which a pulse time width of the first pulse laser beam is extended by transmitting a part of the first pulse laser beam, making the other part circulate once, and outputting first transmitted light and first once-circulating light that spatially partially overlap with a first shift amount, and a second optical pulse stretcher configured to output a third pulse laser beam for which a pulse time width of the second pulse laser beam is extended by transmitting a part of the second pulse laser beam, making the other part circulate once, and outputting second transmitted light and second once-circulating light that spatially partially overlap with a second shift amount, which is different from the first shift amount.

IPC Classes  ?

  • H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
  • G03F 7/20 - ExposureApparatus therefor
  • H01S 3/03 - Constructional details of gas laser discharge tubes

91.

INDICATION SYSTEM, INDICATION METHOD, AND NON-VOLATILE STORAGE MEDIUM

      
Application Number JP2025035273
Publication Number 2026/100269
Status In Force
Filing Date 2025-10-03
Publication Date 2026-05-15
Owner KOMATSU LTD. (Japan)
Inventor
  • Kawamoto, Shun
  • Higuchi, Kenichi
  • Hieda, Naoki
  • Uchizono, Toyohito
  • Hisa, Hayato
  • Nishimura, Minetaka

Abstract

An attachment (30) is attachable to and detachable from a coupler (8). An external sensor (20) acquires sensor data related to the attachment (30). A controller (50) outputs a guidance image to a monitor (40) on the basis of the sensor data acquired by the external sensor (20). The guidance image includes an indication that enables recognition of a relative position between a grip portion (8b) of the coupler (8) and a first pin (31) of the attachment (30) which is attached to and detached from the grip portion (8b).

IPC Classes  ?

92.

PROCESSING METHOD OF TARGET SUPPLY DEVICE AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19350861
Status Pending
Filing Date 2025-10-06
First Publication Date 2026-05-14
Owner GIGAPHOTON INC. (Japan)
Inventor
  • Endo, Masaru
  • Nakano, Masaki

Abstract

A processing method of a target supply device is configured to supply a target into a chamber for generating EUV light. The target supply device includes a tank capable of accommodating the target, a filter accommodated in the tank, and a nozzle in communication with inside of the tank and capable of discharging the target in a molten state. The processing method includes a first step of heating the tank to a temperature exceeding a melting point of the target before supplying the target into the tank, and a second step of supplying the target into the tank after the first step.

IPC Classes  ?

  • H05G 2/00 - Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma

93.

WORK MACHINE, METHOD OF AND SYSTEM FOR CONTROLLING WORK MACHINE

      
Application Number 18853870
Status Pending
Filing Date 2023-04-14
First Publication Date 2026-05-14
Owner KOMATSU LTD. (Japan)
Inventor
  • Sonoda, Takuya
  • Nakae, Yoshihide
  • Maeda, Takashi

Abstract

A work machine includes a vehicle body, a work implement including a blade, a plurality of actuators connected to the work implement, an operating device operable to change the posture of the blade, a sensor that detects a current posture of the blade, and a controller. The work implement is movably connected to the vehicle body. The plurality of actuators change a posture of the blade with respect to the vehicle body. The controller obtains the current posture of the blade. The controller determines target stroke lengths for the actuators, respectively, such that the blade is moved in a blade normal line direction from the current posture by a combination of stroke motions of the actuators depending on an operation to the operating device. The blade normal line direction is perpendicular to a lengthwise direction of the blade. The controller controls the actuators based on the target stroke lengths.

IPC Classes  ?

  • E02F 3/84 - Drives or control devices therefor
  • E02F 3/76 - Graders, bulldozers, or the like with scraper plates or ploughshare-like elementsLevelling devices
  • E02F 9/22 - Hydraulic or pneumatic drives

94.

HEEL FOR GRAPPLE ASSEMBLY

      
Document Number 03289927
Status Pending
Filing Date 2025-10-22
Open to Public Date 2026-05-13
Owner Komatsu America Corp. (USA)
Inventor Holcomb, Jessica Noelle

Abstract

A heel includes a grapple attachment portion, an arm attachment portion non movably connected to the grapple attachment portion, a rack attachment portion non movably connected to the arm attachment portion such that the arm attachment portion is disposed between the grapple attachment portion and the rack attachment portion, and at least one rack removably attached to the rack attachment portion. A work machine includes the heel, a main body, a boom pivotably connected to the main body, and an arm pivotably connected to the boom. The heel is connected to a free end of the arm.

IPC Classes  ?

  • A01G 23/00 - Forestry
  • B66C 1/42 - Gripping members engaging only the external or internal surface of the articles
  • B66C 1/58 - Gripping members engaging only the external or internal surface of the articles and deforming the articles, e.g. by using gripping members such as tongs or grapples

95.

MANAGEMENT SYSTEM FOR UNMANNED VEHICLE AND MANAGEMENT METHOD FOR UNMANNED VEHICLE

      
Application Number 19116354
Status Pending
Filing Date 2023-10-20
First Publication Date 2026-05-07
Owner KOMATSU LTD. (Japan)
Inventor
  • Shinohara, Kenta
  • Sakai, Atsushi
  • Maeda, Misato

Abstract

A management system for an unmanned vehicle includes: a traveling path generation unit, configured to generate a traveling path of an unmanned vehicle; a speed calculation unit, configured to calculate a target traveling speed of the unmanned vehicle traveling along the traveling path, based on the traveling path; and a detection unit, configured to detect a deceleration position indicating a position where the target traveling speed drops in the traveling path.

IPC Classes  ?

  • G05D 1/65 - Following a desired speed profile
  • G05D 105/05 - Specific applications of the controlled vehicles for soil shifting, building, civil engineering or mining, e.g. excavators
  • G05D 107/70 - Industrial sites, e.g. warehouses or factories

96.

LASER APPARATUS AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19353085
Status Pending
Filing Date 2025-10-08
First Publication Date 2026-05-07
Owner Gigaphoton Inc. (Japan)
Inventor Fujimaki, Yousuke

Abstract

A laser apparatus includes an oscillator configured to output a pulse laser beam, a random phase plate disposed in an optical path of the pulse laser beam, and an optical pulse stretcher disposed in the optical path of the pulse laser beam that has passed through the random phase plate and configured to stretch a pulse time width of the pulse laser beam by transmitting part of the pulse laser beam, making the other part circulate at least once through a delay optical path, and outputting transmitted light and circulating light.

IPC Classes  ?

  • B23K 26/0622 - Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses

97.

SYSTEM AND METHOD FOR CONTROLLING WORK MACHINE

      
Application Number JP2025029552
Publication Number 2026/094385
Status In Force
Filing Date 2025-08-22
Publication Date 2026-05-07
Owner KOMATSU LTD. (Japan)
Inventor
  • Tokunaka, Kazumasa
  • Wakabayashi, Yasuo
  • Kogawa, Yosuke
  • Takahashi, Yuya

Abstract

This system is for controlling a work machine and comprises a sensor and a controller. The sensor detects the current position of the work machine. The controller acquires a plurality of paths including a first path. The controller acquires the current position of the work machine. The controller sets the first path from among the plurality of paths as a target path for the work machine. The controller controls the work machine by automatic travel control on the basis of the current position of the work machine so that the work machine travels along the first path. The controller acquires a cancellation command for the target path during the automatic travel control. The controller cancels the setting of the first path as the target path when the cancellation command is acquired during the automatic travel control.

IPC Classes  ?

98.

DISPLAY CONTROL SYSTEM, REMOTE OPERATION SYSTEM, AND DISPLAY CONTROL METHOD

      
Application Number JP2025032591
Publication Number 2026/094459
Status In Force
Filing Date 2025-09-16
Publication Date 2026-05-07
Owner KOMATSU LTD. (Japan)
Inventor
  • Davis, Jefferson
  • Ario, Tomoaki
  • Kikuchi, Atsunori

Abstract

This display control system is for a display device and: acquires measurement information obtained through measurement by a work machine; generates and displays a composite image on the display device, the composite image including a reference image representing a reference in the height direction and a ground contact surface height image representing the height of a ground contact surface of the work machine; defines a predetermined height around the work machine which is a height different from the ground contact surface of the work machine as a reference for the reference image; and generates the composite image on the basis of the measurement information such that the ground contact surface height image is in a position corresponding to the height of the reference image.

IPC Classes  ?

  • E02F 9/26 - Indicating devices
  • G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
  • G09G 5/14 - Display of multiple viewports
  • G09G 5/37 - Details of the operation on graphic patterns
  • G09G 5/377 - Details of the operation on graphic patterns for mixing or overlaying two or more graphic patterns
  • H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

99.

LASER PROCESSING APPARATUS AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19348706
Status Pending
Filing Date 2025-10-02
First Publication Date 2026-05-07
Owner Gigaphoton Inc. (Japan)
Inventor Tanaka, Tomonari

Abstract

A laser processing apparatus according to one aspect of the present disclosure performs hole processing on a workpiece using a pulse laser beam output from a laser apparatus, and includes a Z polarizer disposed on an optical path of the pulse laser beam and configured to convert a polarization state of the pulse laser beam to azimuthal polarization, a diffractive optical element configured to split the azimuthally polarized pulse laser beam transmitted through the Z polarizer into a plurality of laser beams, and a light condensing optical system configured to generate a plurality of light condensing spots on the workpiece by condensing the laser beams.

IPC Classes  ?

  • B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
  • B23K 26/382 - Removing material by boring or cutting by boring
  • B23K 101/40 - Semiconductor devices
  • B23K 101/42 - Printed circuits
  • H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or

100.

LASER PROCESSING APPARATUS, CONTROL METHOD OF LASER PROCESSING APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD

      
Application Number 19439268
Status Pending
Filing Date 2026-01-02
First Publication Date 2026-05-07
Owner Gigaphoton Inc. (Japan)
Inventor
  • Kawasuji, Yasufumi
  • Wakabayashi, Osamu
  • Suzuki, Akiyoshi

Abstract

A laser processing apparatus includes a first actuator moving a light shielding plate in a direction perpendicular to an optical axis of a light concentrating optical system, a second actuator capable of generating high density patterns densified by moving a multi-point pattern at a movement pitch shorter than a grid interval of the multi-point pattern, a third actuator moving a workpiece in the direction perpendicular to the optical axis, and a laser processing processor. At each step position in a processing area changed by controlling the third actuator, the laser processing processor selects one of the high density patterns, each having a different number of rows or a different number of columns, and controls the second actuator and the laser device to perform irradiation with the selected pattern, so that drilling is performed on a surface of the workpiece only in the processing area where drilling is required.

IPC Classes  ?

  • B23K 26/064 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
  • G02B 19/00 - Condensers
  • G02B 27/10 - Beam splitting or combining systems
  • H10W 70/05 -
  1     2     3     ...     67        Next Page