Okamoto Machine Tool Works, Ltd.

Japan

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        Patent 13
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Date
2025 1
2023 2
2022 3
Before 2021 10
IPC Class
B24B 7/22 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain 5
B24B 41/06 - Work supports, e.g. adjustable steadies 3
B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means 3
B24B 7/04 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor involving a rotary work-table 3
B24B 27/00 - Other grinding machines or devices 2
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Status
Pending 2
Registered / In Force 14

1.

Grinding apparatus

      
Application Number 18697251
Grant Number 12318886
Status In Force
Filing Date 2022-10-04
First Publication Date 2025-02-20
Grant Date 2025-06-03
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Watanabe, Tetsuyuki
  • Tsuchiya, Keiji

Abstract

Provided is a grinding apparatus that can efficiently and accurately measure the position of a work surface of a workpiece without preliminary preparations. Included are: a work table (14) configured to hold a workpiece (W); a grinding wheel (10) configured to grind the workpiece (W) while rotating; and a detection sensor (20) configured to detect the position of a work surface of the workpiece (W) in contact with the work surface, and relative positions of the detection sensor (20) and the work table (14) are changed by a manual operation, and the detection sensor (20) is brought into contact with the workpiece (W) to measure the workpiece (W). Consequently, it is possible to omit preliminary preparations for measurement such as creation of an NC program, initial settings, and operation confirmation and perform a highly efficient measurement with a significantly reduced time for the preliminary preparations.

IPC Classes  ?

  • B24B 47/20 - Drives or gearings for grinding machines or devicesEquipment therefor relating to feed movement
  • B24B 41/06 - Work supports, e.g. adjustable steadies
  • B24B 49/04 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation

2.

GRINDING DEVICE

      
Application Number JP2022037113
Publication Number 2023/063166
Status In Force
Filing Date 2022-10-04
Publication Date 2023-04-20
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Watanabe Tetsuyuki
  • Tsuchiya Keiji

Abstract

Provided is a grinding device whereby the position of a workpiece surface to be processed can be efficiently and precisely measured without advance preparation such as NC program creation. The present invention has a workpiece table (14) for holding a workpiece (W), a grinding wheel (10) for grinding the workpiece (W) while rotating, and a detection sensor (20) for contacting a workpiece (W) surface to be processed and detecting the position of the surface to be processed, the relative positions of the detection sensor (20) and the workpiece table (14) are changed by a manual operation, the detection sensor (20) is brought into contact with the workpiece (W), and measurement of the workpiece (W) is performed. Through this configuration, advance preparation such as creation of an NC program for measurement, initial setting, and operation confirmation can be omitted, and highly efficient measurement with greatly reduced time for advance preparation can be performed. Workpiece (W) yield using the grinding device (1) can thereby be enhanced.

IPC Classes  ?

  • B24B 49/02 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
  • B24B 7/02 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor involving a reciprocatingly-moved work-table

3.

SUBSTRATE GRINDING DEVICE AND SUBSTRATE GRINDING METHOD

      
Application Number 17877366
Status Pending
Filing Date 2022-07-29
First Publication Date 2023-03-16
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Ide, Satoru
  • Mitsui, Takahiko
  • Yamamoto, Hiroshi

Abstract

Provided is a substrate grinding device including: a work table; a first grinding wheel; and a second grinding wheel, wherein the work table is configured to rotate while sucking and holding a substrate, the first grinding wheel and the second grinding wheel are cup wheel type wheels, and provided at positions where the first grinding wheel and the second grinding wheel can be simultaneously in contact with the substrate rotating, the first grinding wheel and the second grinding wheel being configured to grind the substrate rotating, while rotating, and the work table is configured to be able to move a rotation center of the substrate from a first grinding position within a grinding range of the first grinding wheel to a second grinding position within a grinding range of the second grinding wheel.

IPC Classes  ?

  • B24B 27/00 - Other grinding machines or devices
  • B24B 7/22 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
  • B24B 7/04 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor involving a rotary work-table
  • B24B 41/06 - Work supports, e.g. adjustable steadies
  • B24D 13/14 - Wheels having flexibly-acting working parts, e.g. buffing wheelsMountings therefor acting by the front face

4.

Method for manufacturing semiconductor device and apparatus for manufacturing semiconductor device

      
Application Number 17677547
Grant Number 12068165
Status In Force
Filing Date 2022-02-22
First Publication Date 2022-09-15
Grant Date 2024-08-20
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Yamamoto, Eiichi
  • Bando, Tsubasa
  • Mitsui, Takahiko

Abstract

There is provided a method for manufacturing a semiconductor device, including: attracting a semiconductor device wafer by a chuck mechanism and rotating the semiconductor device wafer horizontally; rotating a rotary blade horizontally by a vertical spindle to which ultrasonic waves are applied; trimming an outer peripheral end portion of the semiconductor device wafer that is horizontally rotating by the rotary blade that is horizontally rotating, to form a groove in the outer peripheral end portion; correcting a tip shape of the rotary blade that is horizontally rotating by a blade-forming grinding wheel during the trimming; and grinding one main surface of the semiconductor device wafer that is horizontally rotating by a cup grinding wheel that is horizontally rotating after the trimming.

IPC Classes  ?

  • H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
  • B24B 9/06 - Machines or devices designed for grinding edges or bevels on work or for removing burrsAccessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
  • H01L 21/66 - Testing or measuring during manufacture or treatment

5.

GRINDING METHOD AND GRINDING APPARATUS

      
Application Number 17669829
Status Pending
Filing Date 2022-02-11
First Publication Date 2022-08-25
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Bando, Tsubasa
  • Yamamoto, Eiichi
  • Mitsui, Takahiko
  • Honda, Yu

Abstract

There is provided a grinding method for grinding a substrate with a grinding wheel. A dissimilar material portion made of a material different from a main constituent material of the substrate is embedded in the substrate. The grinding method includes: lowering the grinding wheel toward the substrate rotating while rotating the grinding wheel, and grinding the substrate by the grinding wheel; continuously imaging a processed surface of the substrate by an image sensor during grinding the substrate; analyzing an amount of exposure of the dissimilar material portion based on data of an image captured by the image sensor; and continuously grinding the substrate from a state where the dissimilar material portion begins to be exposed to a stage where the amount of exposure of the dissimilar material portion reaches a predetermined set value, based on the amount of exposure analyzed.

IPC Classes  ?

  • B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
  • B24B 7/04 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor involving a rotary work-table
  • B24B 7/22 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
  • B24B 49/04 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation

6.

Dressing apparatus and polishing apparatus

      
Application Number 17371909
Grant Number 11980997
Status In Force
Filing Date 2021-07-09
First Publication Date 2022-01-20
Grant Date 2024-05-14
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Mitsui, Takahiko
  • Yamamoto, Eiichi

Abstract

A dressing apparatus includes a dresser provided in a polishing apparatus for polishing a board-like work by relative movement between the work and a polishing pad while bringing the polishing pad into contact with the work, the dresser having a dressing surface that slides relative to a polishing surface of the polishing pad to dress the polishing pad; a dresser drive member that rotates the dresser; a high-pressure water generating device that supplies high-pressure water pressurized to 1 to 15 MPa; and a high-pressure water injection nozzle that injects the high-pressure water toward the dressing surface rotating.

IPC Classes  ?

  • B24B 53/017 - Devices or means for dressing, cleaning or otherwise conditioning lapping tools
  • B24B 37/20 - Lapping pads for working plane surfaces

7.

Automatic grinding apparatus

      
Application Number 16732973
Grant Number 11344993
Status In Force
Filing Date 2020-01-02
First Publication Date 2020-07-16
Grant Date 2022-05-31
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Yoshida, Yutaka
  • Hirayama, Takuo
  • Matsuoka, Kuniyoshi
  • Satake, Shiho
  • Kito, Yoshimi

Abstract

Provided is an automatic grinding apparatus, comprising a grinding wheel, a support, a feeding device, a control device, a first detector, a second detector, a third detector, and a fourth detector, wherein the control device is further configured to, before processing using the grinding wheel is started, calculate a range in which the grinding wheel and the support are relatively moved on the basis of information on positions of a surface of a workpiece and an outer peripheral end portion and an end surface of the grinding wheel detected by the first detector, the second detector, the third detector, and the fourth detector, to move the grinding wheel or the support by controlling the feeding device, and to automatically start the processing using the grinding wheel.

IPC Classes  ?

  • B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means

8.

Grinding method of composite substrate including resin and grinding apparatus thereof

      
Application Number 16708528
Grant Number 11745299
Status In Force
Filing Date 2019-12-10
First Publication Date 2020-06-25
Grant Date 2023-09-05
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Yamamoto, Eiichi
  • Mitsui, Takahiko
  • Bando, Tsubasa
  • Ide, Satoru

Abstract

A grinding apparatus and a grinding method of a composite substrate including resin, by which loading of a grinding wheel can be suppressed in grinding of a large-sized composite substrate including resin, and with which grinding can be effectively performed with high precision. This method for grinding a front surface of a composite substrate formed with a resin substrate embedded with at least one of a semiconductor device chip and an electrode, includes: bringing at least a part of a grinding member for grinding the front surface of the composite substrate into contact with the front surface; supplying water to at least one of a contacting part or a non-contacting part between the front surface of the composite substrate and the grinding member; and grinding the front surface of the composite substrate simultaneously with the supplying water.

IPC Classes  ?

  • B24B 7/22 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
  • B24B 55/02 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant

9.

Substrate grinding device and substrate grinding method

      
Application Number 16565548
Grant Number 12358095
Status In Force
Filing Date 2019-09-10
First Publication Date 2020-03-19
Grant Date 2025-07-15
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Ide, Satoru
  • Mitsui, Takahiko
  • Bando, Tsubasa
  • Takaoka, Kazuhiro

Abstract

Provided is a substrate grinding device including: a work table rotatable with the work table sucking and holding a substrate; a cup wheel-type first grinding wheel configured to grind the rotating substrate while rotating, the substrate being held by the work table; and a cup wheel-type second grinding wheel configured to grind the substrate along with grinding by the first grinding wheel while rotating in a close vicinity of the substrate.

IPC Classes  ?

  • B24B 27/00 - Other grinding machines or devices
  • B24B 7/04 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor involving a rotary work-table
  • B24B 7/22 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain

10.

Method and apparatus for manufacturing semiconductor device

      
Application Number 16541771
Grant Number 11735411
Status In Force
Filing Date 2019-08-15
First Publication Date 2020-02-27
Grant Date 2023-08-22
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Yamamoto, Eiichi
  • Mitsui, Takahiko
  • Bando, Tsubasa

Abstract

A method for manufacturing a semiconductor device includes chucking in which a semiconductor device wafer is attached to an upper surface of a chuck mechanism with its device surface down; and edge trimming performed after the chucking, wherein the edge trimming comprises: rotating the semiconductor device water horizontally by the chuck mechanism; rotating a rotating blade horizontally by a vertical spindle to which an ultrasonic wave is applied and trimming a circumferential side surface of the semiconductor device wafer by the rotating blade.

IPC Classes  ?

  • H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
  • B24B 9/06 - Machines or devices designed for grinding edges or bevels on work or for removing burrsAccessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • B24B 7/22 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches

11.

Method of manufacturing semiconductor apparatus

      
Application Number 16268955
Grant Number 10763171
Status In Force
Filing Date 2019-02-06
First Publication Date 2019-08-08
Grant Date 2020-09-01
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Yamamoto, Eiichi
  • Mitsui, Takahiko

Abstract

An embodiment of the present disclosure provides a method of manufacturing a semiconductor apparatus, including the following steps. A) forming a semiconductor device element in a Si active layer of an insulating isolation Si substrate including the Si active layer, a buried insulating layer, and a Si supporting substrate arranged in this order; B) forming a plurality of through electrode holes penetrating the Si active layer and the buried insulating layer to reach a partial region of the Si supporting substrate in an element region layer including the formed semiconductor device element; C) forming a through silicon via by sequentially forming an insulating film, a barrier film, and a Cu film inside the through electrode hole to completely fill the through electrode hole; D) forming a multilayer wiring layer including a wiring layer connected to the semiconductor device element on an outer surface of the element region layer in which the through silicon via is formed; and E) exposing the Cu film of the through silicon via by removing the Si supporting substrate after forming the multilayer wiring layer.

IPC Classes  ?

  • H01L 21/768 - Applying interconnections to be used for carrying current between separate components within a device
  • H01L 21/762 - Dielectric regions
  • H01L 25/00 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices
  • H01L 25/065 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

12.

Electrostatic attachment chuck, method for manufacturing the same, and semiconductor device manufacturing method

      
Application Number 15960790
Grant Number 10964576
Status In Force
Filing Date 2018-04-24
First Publication Date 2018-11-01
Grant Date 2021-03-30
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Yamamoto, Eiichi
  • Terakubo, Yoshihiro
  • Mitsui, Takahiko
  • Ito, Toshihiro

Abstract

An electrostatic attachment chuck includes: a substrate; a synthetic resin sheet joined to one main surface of the substrate; and at least a pair of electrodes disposed in the synthetic resin sheet. The synthetic resin sheet includes a planarized and ground surface serving as a surface on which a semiconductor wafer is abutted.

IPC Classes  ?

  • B24B 41/06 - Work supports, e.g. adjustable steadies
  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
  • H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • H01L 21/687 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches

13.

Automatic grinding apparatus

      
Application Number 15680902
Grant Number 10556318
Status In Force
Filing Date 2017-08-18
First Publication Date 2018-03-01
Grant Date 2020-02-11
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
Inventor
  • Yoshida, Yutaka
  • Hirayama, Takuo
  • Matsuoka, Kuniyoshi
  • Satake, Shiho
  • Kito, Yoshimi

Abstract

An automatic grinding apparatus includes: a grinding wheel configured to grind a workpiece; a support configured to support the workpiece; a feeding device configured to change a relative position between the grinding wheel and the workpiece; and a control device configured to, before processing using the grinding wheel is started, calculate a range in which the grinding wheel and the support are relatively moved on the basis of information on positions of the workpiece and the grinding wheel detected by a first detector, a second detector, and a third detector, move the grinding wheel or the support by performing numerical control with respect to the feeding device, and automatically start the processing using the grinding wheel.

IPC Classes  ?

  • B24B 49/10 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
  • B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
  • B24B 51/00 - Arrangements for automatic control of a series of individual steps in grinding a workpiece
  • B24D 5/00 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their peripheryBushings or mountings therefor
  • B24B 49/00 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation

14.

OKAMOTO

      
Serial Number 74576363
Status Registered
Filing Date 1994-09-21
Registration Date 1996-04-23
Owner OKAMOTO MACHINE TOOL WORKS LTD. (Japan)
NICE Classes  ? 07 - Machines and machine tools

Goods & Services

grinding machines used in the metal machining industry

15.

ACC

      
Serial Number 74281506
Status Registered
Filing Date 1992-06-04
Registration Date 1993-08-17
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
NICE Classes  ? 07 - Machines and machine tools

Goods & Services

grinding machines used in the metal machining industry

16.

OKAMOTO

      
Serial Number 72399036
Status Registered
Filing Date 1971-08-02
Registration Date 1973-06-05
Owner OKAMOTO MACHINE TOOL WORKS, LTD. (Japan)
NICE Classes  ? 07 - Machines and machine tools

Goods & Services

GRINDING MACHINE AND PARTS THEREOF