Bridgestone Corporation

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[Owner] Bridgestone Corporation 7,228
Bridgestone Sports Co., Ltd. 528
Bridgestone Bandag, LLC 271
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New (last 4 weeks) 19
2025 September (MTD) 9
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IPC Class
B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition 1,127
B60C 11/03 - Tread patterns 481
C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons 481
C08K 3/04 - Carbon 448
C08L 7/00 - Compositions of natural rubber 436
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12 - Land, air and water vehicles; parts of land vehicles 859
37 - Construction and mining; installation and repair services 156
17 - Rubber and plastic; packing and insulating materials 126
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28 - Games; toys; sports equipment 106
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Pending 462
Registered / In Force 7,867
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1.

STEEL CORD, CORD FOR TIRE REINFORCEMENT, AND TIRE

      
Application Number JP2025007724
Publication Number 2025/192367
Status In Force
Filing Date 2025-03-04
Publication Date 2025-09-18
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Tokutomi Kazutaka

Abstract

The present invention addresses the problem of providing a steel cord in which a decrease in adhesiveness with a coating rubber is suppressed while using a steel filament derived from recycled iron. The means for solving the problem is a steel cord comprising a plurality of steel filaments, the steel cord being characterized in that: one or more of the steel filaments constituting the steel cord are steel filaments derived from recycled iron; each of the steel filaments derived from recycled iron has an N element content of 50 mass ppm or more, a C element content of 0.7-1.0 mass%, a Cu element content of 0.01-0.4 mass%, and a Cr element content of 0.05-0.3 mass%; and the surface of the steel cord contains 2-60 atom% of N atoms and has a Cu/Zn ratio of 1-4.

IPC Classes  ?

  • D07B 1/06 - Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
  • B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
  • B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
  • D02G 3/48 - Tyre cords

2.

HOSE

      
Application Number JP2024045250
Publication Number 2025/187178
Status In Force
Filing Date 2024-12-20
Publication Date 2025-09-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Suzuki, Tatsuya
  • Fukushima, Yoshihiro
  • Matsuyama, Fumiaki
  • Suzuki, Hideto

Abstract

This hose comprises: an inner tube; a plurality of reinforcement layers laminated on an inner tube surface; and an outer surface layer formed on a surface of the plurality of reinforcement layers. Among the plurality of reinforcement layers, an outer reinforcement layer closer to the outer surface layer includes a steel cord reinforcement layer. Among the plurality of reinforcement layers, an inner reinforcement layer closer to the inner tube includes a steel cord reinforcement layer. Steel cords having different relationships between strain and stress are respectively disposed in the outer reinforcement layer and the inner reinforcement layer, such that the value of strain until reaching a predetermined stress load on the steel cord of the outer reinforcement layer is relatively smaller than the value of strain until reaching the predetermined stress load on the steel cord of the inner reinforcement layer, or steel cords having different ratios of the total cross-sectional area of filaments to the circumscribed cross-sectional area of the steel cord are respectively disposed in the outer reinforcement layer and the inner reinforcement layer, such that the value of the ratio in the outer reinforcement layer is relatively larger than the value of the ratio in the inner reinforcement layer.

IPC Classes  ?

  • F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
  • B32B 1/08 - Tubular products
  • B32B 15/02 - Layered products essentially comprising metal in a form other than a sheet, e.g. wire, particles
  • B32B 15/18 - Layered products essentially comprising metal comprising iron or steel

3.

HOSE

      
Application Number JP2024045251
Publication Number 2025/187179
Status In Force
Filing Date 2024-12-20
Publication Date 2025-09-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Fukushima, Yoshihiro
  • Suzuki, Tatsuya
  • Sano, Ryosuke

Abstract

This hose comprises: an inner tube; a plurality of reinforcement layers laminated on an outer surface of the inner tube; and an outer surface layer formed on a surface of the plurality of reinforcement layers. The plurality of reinforcement layers are constituted by a combination of a wire reinforcement layer, which uses a single wire as a metal reinforcement material, and a steel cord reinforcement layer, which uses a steel cord formed by twisting a plurality of filaments as a metal reinforcement material. The plurality of reinforcement layers include outer reinforcement layers closer to the outer surface layer, and inner reinforcement layers closer to the inner tube. At least the innermost inner reinforcement layer among the inner reinforcement layers, or at least the outermost outer reinforcement layer among the outer reinforcement layers, is constituted by the wire reinforcement layer.

IPC Classes  ?

  • F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
  • B32B 1/08 - Tubular products
  • B32B 15/02 - Layered products essentially comprising metal in a form other than a sheet, e.g. wire, particles
  • B32B 15/18 - Layered products essentially comprising metal comprising iron or steel

4.

HOSE

      
Application Number JP2024045252
Publication Number 2025/187180
Status In Force
Filing Date 2024-12-20
Publication Date 2025-09-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Fukushima, Yoshihiro
  • Suzuki, Tatsuya
  • Matsuyama, Fumiaki
  • Suzuki, Hideto

Abstract

A hose according to the present invention comprises a steel cord reinforcement layer that uses, as a metal reinforcement material, steel cords each obtained by twisting a plurality of filaments. Each steel cord is laced helically in the longitudinal direction of the hose. The lacing angle θ of the steel cords relative to the longitudinal direction of the hose falls within a range of 40° < θ < 60°, or the steel cords are helically wound in the longitudinal direction of the hose by being twisted in the direction in which the twisting of the filaments is tightened or in the direction in which the twisting of the filaments is loosened.

IPC Classes  ?

  • F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall

5.

ROAD SURFACE CONDITION DETERMINATION DEVICE AND CONTROL DEVICE

      
Application Number 19105036
Status Pending
Filing Date 2023-06-20
First Publication Date 2025-09-11
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Ishida, Masami
  • Nemoto, Tomoaki
  • Chikugo, Tomoaki

Abstract

A road surface condition determination device (10) is a road surface condition determination device that determines a condition of a road surface on which a vehicle is in motion, comprising a data acquisition section (131) that acquires sound data, including information on reflected sound of sound generated by the vehicle, which is collected by a data collection section installed on the vehicle, and a determination section (132) that determines the condition of the road surface based on presence or absence of a peak in a predetermined frequency range in the acquired sound data.

IPC Classes  ?

  • G01N 29/12 - Analysing solids by measuring frequency or resonance of acoustic waves
  • G01N 29/04 - Analysing solids

6.

MULTI-PIECE SOLID GOLF BALL

      
Application Number 19053666
Status Pending
Filing Date 2025-02-14
First Publication Date 2025-09-11
Owner Bridgestone Sports Co., Ltd. (Japan)
Inventor Watanabe, Hideo

Abstract

A multi-piece solid golf ball includes a core, an intermediate layer, and a cover, in which a large number of dimples are formed on an outside surface of the cover, a relationship between a surface hardness of an intermediate layer-encased sphere and a surface hardness of the ball is specified, an initial velocity of the ball is set from 76.0 to 77.724 m/s, a relationship of a ratio to a lift coefficient/drag coefficient at a Reynolds number of 218,000 and a spin rate of 2,800 rpm, a lift coefficient/drag coefficient at a Reynolds number of 184,000 and a spin rate of 2,900 rpm, and a lift coefficient/drag coefficient at a Reynolds number of 158,000 and a spin rate of 3,100 rpm is specified, and a volume occupancy ratio of the dimples is set within a predetermined range.

IPC Classes  ?

7.

FLUID ACTUATOR

      
Application Number JP2024044113
Publication Number 2025/182243
Status In Force
Filing Date 2024-12-12
Publication Date 2025-09-04
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Oono, Shingo

Abstract

This fluid actuator comprises: a cylindrical tube 24 that expands and contracts depending on the pressure of a fluid; a sleeve 26 that covers the outer peripheral surface of the tube 24; a pair of sealing members that seal the end portions of the tube; a long restraining member 28 that is disposed to extend from one side to the other side in an axial direction S on the outside in a radial direction of the tube 24 and the inside in a radial direction of the sleeve 26, resists compression in the axial direction S, and can be curved in an intersecting direction that intersects the axial direction S; and a fixing member 36 that fixes the sleeve 26 and the restraining member 28 to an insertion portion 32B from the outside of the sleeve 26 at a position corresponding to a restraining end portion 29 that is one end of the restraining member 28. The restraining end portion 29 is fixed, in the insertion portion 32B, to an outer surface of the tube 24 on a radially outer side than the outer surface corresponding to a portion of the tube 24 which is not inserted into the insertion portion 32B before being curved.

IPC Classes  ?

  • F15B 15/10 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type

8.

METHOD FOR RUBBER/STEEL CORD SEPARATION, RECYCLING METHOD FOR STEEL CORDS, AND RECYCLING METHOD FOR RUBBER FOR TIRE

      
Application Number JP2024044494
Publication Number 2025/182253
Status In Force
Filing Date 2024-12-16
Publication Date 2025-09-04
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Sato Takayuki
  • Hojo Masahiro

Abstract

A purpose of the present invention is to provide a method for rubber/steel cord separation, the method being capable of reducing the amount of a rubber adherent to steel cords without through any complicated step and enabling closed-loop recycling of the recovered steel. Provided is a method for separating the rubber contained in a tire from the steel cords contained therein, the method being characterized by including a wet heat treatment step in which, prior to separation between the rubber and the steel cords, the tire is placed in a wet heat environment having a temperature of 60°C or higher and a humidity of 60% or higher.

IPC Classes  ?

  • B29B 17/02 - Separating plastics from other materials
  • B29B 17/04 - Disintegrating plastics
  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • C21C 5/28 - Manufacture of steel in the converter

9.

Display screen or portion thereof with animated graphical user interface

      
Application Number 29917872
Grant Number D1091622
Status In Force
Filing Date 2023-11-22
First Publication Date 2025-09-02
Grant Date 2025-09-02
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Sato, Kodai

10.

MULTI-PIECE SOLID GOLF BALL

      
Application Number 19194092
Status Pending
Filing Date 2025-04-30
First Publication Date 2025-08-28
Owner BRIDGESTONE SPORTS CO., LTD. (Japan)
Inventor
  • Kuwahara, Masanobu
  • Watanabe, Hideo

Abstract

In a golf ball including a core, an intermediate layer, and a cover, the relationship of the surface hardness between an intermediate layer-encased sphere and the ball satisfies a predetermined relational expression, and with an initial velocity of the ball and a deflection under a predetermined load applied to the ball optimized, and letting a value of (initial velocity of core×weight of core) be Ciw, a value of [(initial velocity of intermediate layer-encased sphere—initial velocity of core)×(weight of intermediate layer-encased sphere−weight of core)] be Miw, and a value of [(initial velocity of ball−initial velocity of intermediate layer-encased sphere)×(weight of ball−weight of intermediate layer-encased sphere)] be CViw, the expression of Ciw+Miw+CViw is optimized, and a volume occupancy ratio VR of the dimples is set within a predetermined range.

IPC Classes  ?

11.

MULTI-PIECE SOLID GOLF BALL

      
Application Number 19207467
Status Pending
Filing Date 2025-05-14
First Publication Date 2025-08-28
Owner BRIDGESTONE SPORTS Co., LTD. (Japan)
Inventor
  • Watanabe, Hideo
  • Kuwahara, Masanobu

Abstract

Provided is a golf ball including a core, an intermediate layer, and a cover. A relationship between surface hardnesses of an intermediate layer-encased sphere and the ball satisfies a predetermined relational expression. With a ball initial velocity and a deflection under a predetermined load applied to the ball optimized, and letting a value of (initial velocity of core×weight of core) be Ciw, a value of [(initial velocity of intermediate layer-encased sphere−initial velocity of core)×(weight of intermediate layer-encased sphere−weight of core)] be Miw, and a value of [(initial velocity of ball−initial velocity of intermediate layer-encased sphere)×(weight of ball−weight of intermediate layer-encased sphere)] be CViw, the following condition is satisfied: Provided is a golf ball including a core, an intermediate layer, and a cover. A relationship between surface hardnesses of an intermediate layer-encased sphere and the ball satisfies a predetermined relational expression. With a ball initial velocity and a deflection under a predetermined load applied to the ball optimized, and letting a value of (initial velocity of core×weight of core) be Ciw, a value of [(initial velocity of intermediate layer-encased sphere−initial velocity of core)×(weight of intermediate layer-encased sphere−weight of core)] be Miw, and a value of [(initial velocity of ball−initial velocity of intermediate layer-encased sphere)×(weight of ball−weight of intermediate layer-encased sphere)] be CViw, the following condition is satisfied: 2500 ≤ Ciw + Miw + CViw ≤ 2650 , Provided is a golf ball including a core, an intermediate layer, and a cover. A relationship between surface hardnesses of an intermediate layer-encased sphere and the ball satisfies a predetermined relational expression. With a ball initial velocity and a deflection under a predetermined load applied to the ball optimized, and letting a value of (initial velocity of core×weight of core) be Ciw, a value of [(initial velocity of intermediate layer-encased sphere−initial velocity of core)×(weight of intermediate layer-encased sphere−weight of core)] be Miw, and a value of [(initial velocity of ball−initial velocity of intermediate layer-encased sphere)×(weight of ball−weight of intermediate layer-encased sphere)] be CViw, the following condition is satisfied: 2500 ≤ Ciw + Miw + CViw ≤ 2650 , wherein a total volume of the dimples is from 306 to 363 mm3.

IPC Classes  ?

12.

RUBBER COMPOSITION, TIRE, AND RUBBER PRODUCT

      
Application Number JP2025005444
Publication Number 2025/178032
Status In Force
Filing Date 2025-02-18
Publication Date 2025-08-28
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Asakura Takafumi

Abstract

The purpose of the present invention is to provide a rubber composition which is excellent in terms of crack propagation resistance after thermal deterioration while having good durability when applied to a tire. In order to achieve the above, the present invention is characterized by containing: a rubber component that contains a natural rubber and/or a synthetic isoprene rubber; a syndiotactic 1,2-polybutadiene; and a heterocyclic compound that has a six-membered aromatic heterocyclic ring. The present invention is also characterized in that the syndiotactic 1,2-polybutadiene has a crystal amount of 7-40 J/g and a number average molecular weight of 3.0 × 104 or more.

IPC Classes  ?

  • C08L 7/00 - Compositions of natural rubber
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 5/34 - Heterocyclic compounds having nitrogen in the ring
  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08L 47/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bondsCompositions of derivatives of such polymers

13.

PNEUMATIC TIRE

      
Application Number JP2025006181
Publication Number 2025/178138
Status In Force
Filing Date 2025-02-21
Publication Date 2025-08-28
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Fujie Masahiro

Abstract

The present invention addresses the problem of providing a pneumatic tire in which a reduction in tire performance is mitigated despite using polyamide fibers with low amide density. The solution is a pneumatic tire characterized by comprising a carcass layer (50), belt layers (60A, 60B), and a belt reinforcement layer (70A), wherein reinforcing cords (50-1, 70A-1) in the carcass layer (50) and/or the belt reinforcement layer (70A) contains polyamide fibers having an amide density of 14.0 or less, and (i) when a gauge thickness A from the outer circumferential surface on the tire inner-surface side of the reinforcing cords (50-1) of the carcass layer (50) to the tire inner surface is measured at 100 equally spaced points, the average of the gauge thickness A is 1.5 mm or less, or (ii) when a gauge thickness D from the outer circumferential surface on the tire outer-surface side of the reinforcing cords (70A-1) of the belt reinforcement layer (70A) to the tire outer surface is measured at 100 equally spaced points, the gauge thickness D is 6.0 mm or less at 80% of the measurement points or more.

IPC Classes  ?

  • B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/14 - Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre
  • B60C 9/04 - Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
  • B60C 9/08 - Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend transversely from bead to bead, i.e. radial ply
  • B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
  • B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
  • C08K 3/04 - Carbon
  • C08L 7/00 - Compositions of natural rubber
  • C08L 9/06 - Copolymers with styrene
  • C08L 21/00 - Compositions of unspecified rubbers
  • C08L 25/10 - Copolymers of styrene with conjugated dienes
  • C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
  • D02G 3/48 - Tyre cords
  • D07B 1/16 - Ropes or cables with an enveloping sheathing or inlays of rubber or plastics

14.

RUBBER ARTICLE AND TIRE INCLUDING SAME

      
Application Number 18857177
Status Pending
Filing Date 2022-10-07
First Publication Date 2025-08-28
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Hasegawa, Nao

Abstract

Provided are a rubber article that can achieve both excellent low heat generating property and anti-cut resistance simultaneously, and a tire including the rubber article. The rubber article is a vulcanizate of a rubber composition containing a rubber component and syndiotactic 1,2-polybutadiene, wherein the rubber component contains 30 mass % or more and 70 mass % or less of natural rubber and 30 mass % or more and 70 mass % or less of butadiene rubber, the proportion of the syndiotactic 1,2-polybutadiene is 5 parts by mass or more and 40 parts by mass or less per 100 parts by mass of the rubber component, and the thickness is 3 mm or more.

IPC Classes  ?

  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof
  • C08L 7/00 - Compositions of natural rubber

15.

GOLF BALL

      
Application Number 19044902
Status Pending
Filing Date 2025-02-04
First Publication Date 2025-08-28
Owner Bridgestone Sprots Co., Ltd. (Japan)
Inventor Watanabe, Hideo

Abstract

A golf ball includes a core and a cover, in which a large number of dimples are formed on an outside surface of the cover, the cover is formed using an ionomer resin as a chief material, an initial velocity of the ball is set within a predetermined range, a deflection when a predetermined load is applied to the ball is set within a predetermined range, a relationship of a ratio to a lift coefficient/drag coefficient at a Reynolds number of 218,000 and a spin rate of 2,800 rpm, a lift coefficient/drag coefficient at a Reynolds number of 184,000 and a spin rate of 2,900 rpm, and a lift coefficient/drag coefficient at a Reynolds number of 158,000 and a spin rate of 3,100 rpm is specified, and a volume occupancy ratio of the dimples is set within a predetermined range.

IPC Classes  ?

16.

RUBBER COMPOSITION, TIRE, AND RUBBER PRODUCT

      
Application Number JP2025004605
Publication Number 2025/177913
Status In Force
Filing Date 2025-02-12
Publication Date 2025-08-28
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Asakura Takafumi

Abstract

The purpose of the present invention is to provide a rubber composition that, when used in a tire, exhibits excellent crack propagation resistance after undergoing thermal degradation while having good durability. The present invention is characterized by comprising a rubber component containing a natural rubber and/or a synthetic isoprene rubber, a syndiotactic 1,2-polybutadiene, sulfur, and a vulcanization accelerator, and is characterized in that the syndiotactic 1,2-polybutadiene has a crystal amount of 7-40 J/g and a number average molecular weight of 3.0×104 or more, and the content mass ratio (sulfur/vulcanization accelerator) of the sulfur to the vulcanization accelerator is less than 1.

IPC Classes  ?

  • C08L 7/00 - Compositions of natural rubber
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 3/06 - Sulfur
  • C08K 5/34 - Heterocyclic compounds having nitrogen in the ring
  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08L 47/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bondsCompositions of derivatives of such polymers

17.

TIRE

      
Application Number JP2025006182
Publication Number 2025/178139
Status In Force
Filing Date 2025-02-21
Publication Date 2025-08-28
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Fujie Masahiro

Abstract

CC) are 25 degrees to 65 degrees, inclusive, or (ii) angles formed by the reinforcement cords of the carcass layer with respect to the tire circumferential direction are 70 degrees or more and less than 90 degrees.

IPC Classes  ?

  • B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
  • B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
  • D02G 3/48 - Tyre cords

18.

VARIABLE GAP EXTRACTOR

      
Application Number US2025013124
Publication Number 2025/174567
Status In Force
Filing Date 2025-01-27
Publication Date 2025-08-21
Owner BRIDGESTONE BANDAG, LLC (USA)
Inventor
  • Kost, Troy A.
  • Jones, Jim L.

Abstract

A tire tread extractor includes a plurality of shafts, a plurality of hydraulic cylinders, a servo motor, and a pressure sensor. The shafts are configured to rotate to remove a tire tread from a tire tread mold, and a space between the shafts forms a gap. The hydraulic cylinders are coupled to the shafts, and the hydraulic cylinders are configured to move the shafts to vary a size of the gap. The servo motor is coupled to an actuator, and they are configured to control a master hydraulic cylinder which is configured to control the hydraulic cylinders. The pressure sensor is coupled to the hydraulic cylinders and is configured to measure pressure between the shafts when the tire tread is in the gap. When pressure is above a first threshold, the hydraulic cylinders increase the gap. When pressure is below a second threshold, the hydraulic cylinders decrease the gap.

IPC Classes  ?

  • B29D 30/06 - Pneumatic tyres or parts thereof
  • B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
  • B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
  • B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or

19.

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, NON-TRANSITORY COMPUTER READABLE MEDIUM, AND INFORMATION PROCESSING METHOD

      
Application Number 18857178
Status Pending
Filing Date 2023-01-12
First Publication Date 2025-08-21
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Sannomiya, Takenori

Abstract

An information processing apparatus (10) includes a controller (13). The controller (13) is configured to acquire risk information based on a foreign object that could cause damage to an aircraft, and enable provision of the acquired risk information as a common indicator for determining fee information related to operation of the aircraft.

IPC Classes  ?

20.

RUBBER COMPOSITION FOR TIRE, AND TIRE

      
Application Number JP2024044500
Publication Number 2025/169607
Status In Force
Filing Date 2024-12-16
Publication Date 2025-08-14
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Fukasawa Rira

Abstract

The present invention addresses the problem of providing a rubber composition for a tire, with which it is possible to achieve both wear resistance and low fuel consumption of a tire. The solution for the problem is a rubber composition for a tire, which comprises a rubber component and a filler, and which is characterized in that: the rubber component comprises a copolymer of cyclopentene and a norbornene-based compound represented by general formula (1) (wherein R1to R4each independently represent a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or a substituent that contains a halogen atom, a silicon atom, an oxygen atom, or a nitrogen atom, R2and R3 may be bonded to each other to form a ring, and m is an integer of 0 to 2), and an isoprene skeleton rubber; and the copolymer of cyclopentene and the norbornene-based compound has a content ratio of a structural unit derived from the norbornene-based compound of 35 mass% or less.

IPC Classes  ?

  • C08L 65/00 - Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chainCompositions of derivatives of such polymers
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08F 232/08 - Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system having condensed rings
  • C08K 3/04 - Carbon
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08L 7/00 - Compositions of natural rubber

21.

SYSTEMS AND METHODS FOR INSTALLING ELECTRONIC ASSEMBLY ON TIRE

      
Application Number US2025013125
Publication Number 2025/170775
Status In Force
Filing Date 2025-01-27
Publication Date 2025-08-14
Owner BRIDGESTONE BANDAG, LLC (USA)
Inventor
  • Otting, Robert G.
  • Zeck, Chad M.

Abstract

A method of installing an electronic device on a tire includes preparing a surface of a sidewall of the tire. The sidewall defines a protruding region and a recessed region located radially inwards relative to the protruding region. The method further includes applying an adhesive layer to the surface, attaching the electronic device to an adhesive surface of a cushion, arranging the electronic device and the adhesive surface of the cushion to interface with at least a portion of the adhesive layer along the sidewall of the tire such that the electronic device is located in the recessed region, and coupling the cushion and the electronic device to the tire.

IPC Classes  ?

  • B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre
  • B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof
  • B29D 30/00 - Producing pneumatic or solid tyres or parts thereof
  • B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof

22.

BIAS TIRE FOR AIRCRAFT

      
Application Number JP2024044493
Publication Number 2025/169606
Status In Force
Filing Date 2024-12-16
Publication Date 2025-08-14
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Matsuzawa Kazutaka

Abstract

A bias tire for an aircraft according to the present invention comprises a carcass made of two or more carcass plies toroidally extending between a pair of bead parts. The two or more carcass plies are made of organic fiber cords coated with rubber. The organic fiber cords extend between adjacent carcass plies at inclinations in mutually opposite directions relative to the tire equatorial plane. The bias tire for an aircraft is provided with an electronic component. The electronic component has one or more antennas. The antennas extend at an inclination angle of 32-90° with respect to the tire width direction.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 9/06 - Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend diagonally from bead to bead and run in opposite directions in each successive carcass ply, i.e. bias angle ply

23.

FS592

      
Serial Number 99335741
Status Pending
Filing Date 2025-08-13
Owner Bridgestone Americas, Inc. ()
NICE Classes  ? 12 - Land, air and water vehicles; parts of land vehicles

Goods & Services

Tires

24.

Motorcycle tire

      
Application Number 29918400
Grant Number D1087879
Status In Force
Filing Date 2023-11-28
First Publication Date 2025-08-12
Grant Date 2025-08-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Wataguchi, Keigo
  • Hayashi, Takaki

25.

METHOD FOR PRODUCING REPAIRED PNEUMATIC TIRE

      
Application Number 18856056
Status Pending
Filing Date 2023-01-12
First Publication Date 2025-08-07
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kyo, Soichi
  • Onishi, Koji

Abstract

The method for producing a repaired pneumatic tire according to the present disclosure includes: a placement process placing a repair patch, comprising a reinforcement layer consisting of a plurality of reinforcement cords arranged in parallel with each other and surrounded by unvulcanized rubber, on an area to be repaired; and a vulcanization process vulcanizing a tire with the repair patch placed thereon, and in the repaired pneumatic tire, an outer end in the tire radial direction of the repair patch is located on an inner side in the tire width direction than an end of a maximum width belt layer that has the largest width in the tire width direction among the one or more belt layers, and an inner end in the tire radial direction of the repair patch is located on an outer side in the tire radial direction than a tire maximum width position.

IPC Classes  ?

  • B29C 73/10 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using preformed elements using patches sealing on the surface of the article
  • B29D 30/54 - Retreading
  • B29L 30/00 - Pneumatic or solid tyres or parts thereof

26.

TIRE RUBBER COMPOSITION, TREAD RUBBER, AND TIRE

      
Application Number JP2024044499
Publication Number 2025/164121
Status In Force
Filing Date 2024-12-16
Publication Date 2025-08-07
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Oshima Naoya

Abstract

The present invention addresses the problem of providing a tire rubber composition which is capable of improving the proportion of a sustainable material of a tire, and is capable of promoting a reduction in environmental load in light of the entirety of the production, use and disposal of a modified conjugated diene polymer. The problem is solved by a tire rubber composition characterized in that: the tire rubber composition contains a rubber component (A) and a reinforcing filler (B); the rubber component (A) contains a modified conjugated diene polymer (A1) having a functional group having affinity with the reinforcing filler; and the modified conjugated diene polymer (A1) contains a modified conjugated diene polymer (A1-1) supplied in a mass balance manner.

IPC Classes  ?

  • C08L 15/00 - Compositions of rubber derivatives
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08L 7/00 - Compositions of natural rubber
  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08L 101/00 - Compositions of unspecified macromolecular compounds

27.

NON-PNEUMATIC-TIRE DESIGN DEVICE, METHOD, AND PROGRAM

      
Application Number JP2024044856
Publication Number 2025/164133
Status In Force
Filing Date 2024-12-18
Publication Date 2025-08-07
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Abe, Akihiko

Abstract

In the present invention, a non-pneumatic tire design device comprises: a basic tire model in which a non-pneumatic tire including an inner cylindrical body, an outer cylindrical body, and a connecting member for connecting the inner cylindrical body and the outer cylindrical body is modeled using a finite number of elements; a setting unit for setting an objective function representing tire performance, a limiting condition that limits an allowable range of the tire performance, and a design parameter used to determine the positions of the plurality of control points positioned along the shape of the connecting member in the basic tire model; and a design parameter determination unit that sequentially changes design variables included in the design parameter and determines the design parameter on the basis of the value of the design variable that yields the optimum value of the objective function while fulfilling the limiting condition.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 7/00 - Non-inflatable or solid tyres
  • G06F 30/10 - Geometric CAD
  • G06F 30/15 - Vehicle, aircraft or watercraft design
  • G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]

28.

RUBBER COMPOSITION FOR TIRE, TREAD RUBBER, AND TIRE

      
Application Number JP2024044498
Publication Number 2025/164120
Status In Force
Filing Date 2024-12-16
Publication Date 2025-08-07
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Oshima Naoya

Abstract

The present invention addresses the problem of providing a rubber composition for a tire, which can improve the proportion of sustainable materials in tires and can contribute to reducing environmental burden throughout the entire process of producing, using, and disposing of synthetic rubber. A means for solving this problem is a rubber composition for tires, which is characterized by: containing a rubber component (A) that includes a rubber (A1) having an isoprene skeleton and a synthetic rubber (A2), with the content of the rubber (A1) having an isoprene skeleton being 10-90 parts by mass and the content of the synthetic rubber (A2) being 90-10 parts by mass in a total of 100 parts by mass of the rubber component (A); the synthetic rubber (A2) including a synthetic rubber (A2-1) supplied using a mass balance approach.

IPC Classes  ?

  • C08L 7/00 - Compositions of natural rubber
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08L 101/00 - Compositions of unspecified macromolecular compounds

29.

SULFUR RECOVERING METHOD AND SULFUR RECYCLING SYSTEM

      
Application Number JP2025002321
Publication Number 2025/164550
Status In Force
Filing Date 2025-01-24
Publication Date 2025-08-07
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Hayakawa Kotaro

Abstract

22 discharged can be reduced without requiring treatment in a high temperature environment. In order to solve the abovementioned problem, the present invention provides a method for recovering sulfur from a used desulfurizing agent, the method being characterized in that sulfur is extracted from the desulfurizing agent by using a solvent comprising carbon disulfide, and then recovered.

IPC Classes  ?

  • C01B 17/027 - Recovery of sulfur from material containing elemental sulfur, e.g. luxmassesPurification
  • B09B 3/10 - Destroying solid waste or transforming solid waste into something useful or harmless involving an adsorption step

30.

RUBBER COMPOSITION AND HEAT GENERATION REDUCTION AGENT FOR RUBBER

      
Application Number JP2025002908
Publication Number 2025/164701
Status In Force
Filing Date 2025-01-30
Publication Date 2025-08-07
Owner
  • OTSUKA CHEMICAL CO., LTD. (Japan)
  • BRIDGESTONE CORPORATION (Japan)
Inventor
  • Shinozaki, Shinya
  • Ueno, Mifuyu
  • Fukushima, Rika
  • Hamatani, Satoshi

Abstract

The purpose of the present invention is to provide a rubber composition having, in a vulcanized rubber, superior low heat generation properties (low fuel consumption properties). The rubber composition comprises a rubber component, and a compound represented by formula (1) and/or a salt thereof. Also provided is a heat generation reduction agent for rubber.

IPC Classes  ?

  • C08L 101/00 - Compositions of unspecified macromolecular compounds
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 3/04 - Carbon
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 5/34 - Heterocyclic compounds having nitrogen in the ring

31.

EXPANDABLE RIM FOR TIRE TREAD BUFFING APPARATUS AND METHOD

      
Application Number 19030451
Status Pending
Filing Date 2025-01-17
First Publication Date 2025-07-24
Owner BRIDGESTONE BANDAG, LLC (USA)
Inventor
  • Henriksen, Eric M.
  • Frisbie, Todd R.
  • Ferrell, Christopher J. A.

Abstract

A machine for retreading tires includes a rotatable hub that includes a moveable conical element, and an expandable rim disposed around the rotatable hub. The expandable rim includes a plurality of shoes. Each shoe of the plurality of shoes may have a base portion and a rim portion. The base portion may have a two-piece construction that allows for replacement of a worn interface that may include a channel and a ramp. A method for assembling an expandable rim for use in a tire retreading machine, and a method for servicing a machine having an expandable rim are also disclosed.

IPC Classes  ?

32.

MOVE MORE WITH LESS

      
Application Number 241383300
Status Pending
Filing Date 2025-07-24
Owner Bridgestone Corporation (Japan)
NICE Classes  ? 35 - Advertising and business services

Goods & Services

(1) Consulting services in the field of promotion and management of mining tires; arranging and conducting trade fairs and trade show exhibitions in the field of mining tires.

33.

NON-DESTRUCTIVE BELT DETECTION APPARATUS AND METHOD

      
Application Number 19028807
Status Pending
Filing Date 2025-01-17
First Publication Date 2025-07-24
Owner BRIDGESTONE BANDAG, LLC (USA)
Inventor
  • Kendall, Jr., James A.
  • Hardy, Robert P.
  • Smith, Devin T.
  • Milliron, Zachary
  • Wachtel, Jeffrey A.
  • Abraham, Matthew J.
  • Benitez, Jaime J.
  • Nartker, Jeremiah J.
  • Tomtschik, Alexander G.
  • Terrill, Wade L.

Abstract

Systems and methods of buffing tire casings are provided. A tire buffing machine includes a tire hub assembly selectively rotating a mounted casing, a buffer configured to buff the casing, a tire belt detection apparatus having two or more sensors to detect a first belt depth of one or more belts at a first lateral position in a tire casing and a second belt depth of the one or more belts at a second lateral position within the tire casing, and an electronic controller. The controller determines the first belt depth and the second belt depth using a belt detection apparatus having two or more sensors of the belt detection apparatus and adjusts the operation of the buffer based on the first belt depth or the second belt depth.

IPC Classes  ?

34.

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM

      
Application Number JP2024046017
Publication Number 2025/154519
Status In Force
Filing Date 2024-12-25
Publication Date 2025-07-24
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Numata, Hayata
  • Miyake, Eiji

Abstract

This information processing device acquires a tire internal temperature, and if the acquired tire internal temperature is at least a first temperature, changes the form of notification of a warning for notifying a user of an increase in the tire internal temperature, according to a predicted time until the tire internal temperature reaches a second temperature set to be a temperature higher than the first temperature.

IPC Classes  ?

  • B60C 23/20 - Devices for measuring or signalling tyre temperature
  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 19/12 - Puncture preventing arrangements
  • B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre

35.

Display screen or portion thereof with animated graphical user interface

      
Application Number 29917843
Grant Number D1085130
Status In Force
Filing Date 2023-11-22
First Publication Date 2025-07-22
Grant Date 2025-07-22
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Sato, Kodai

36.

Tire Tread Rubber Composition And Related Methods

      
Application Number 19057257
Status Pending
Filing Date 2025-02-19
First Publication Date 2025-07-17
Owner
  • Bridgestone Corporation (Japan)
  • Bridgestone Americas Tire Operations, LLC (USA)
Inventor
  • Karuth, Anas
  • Kuhel, Iii, James J.
  • Sone, Ryota
  • Ahmed, Shammi
  • Mcintyre, Gabrielle L.
  • Kocsis, Laura S.
  • Razavi, Masoud

Abstract

Disclosed herein are tire tread rubber compositions comprising a specified elastomer component, reinforcing silica filler, a specified hydrocarbon resin, liquid plasticizer, and a cure package. The elastomer component includes styrene-butadiene rubber and high cis linear polybutadiene. Use of the disclosed ingredients may result in a tire tread having particular properties, as discussed further herein.

IPC Classes  ?

  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
  • C08K 3/04 - Carbon
  • C08K 3/36 - Silica

37.

TIRE MOUNTING METHOD, TIRE PROCESSING METHOD, AND TIRE HOLDING DEVICE

      
Application Number 18844542
Status Pending
Filing Date 2023-01-11
First Publication Date 2025-07-17
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Yamane, Eiichiro

Abstract

Provided is a tire mounting method for mounting tires on a tire holding device 1, wherein the tire holding device comprises a pair of split rim members 4 facing each other, a center axis A of each of the pair of split rim members is on a common predetermined axis O, the tire mounting method includes: a clamping step clamping a tire by the pair of split rim members, and a rotating step, after the clamping step, mounting each bead portion of the tire to the pair of split rim members while rotating the pair of split rim members around the predetermined axis.

IPC Classes  ?

  • B24B 29/02 - Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces

38.

Display screen or portion thereof with animated graphical user interface

      
Application Number 29917858
Grant Number D1083990
Status In Force
Filing Date 2023-11-22
First Publication Date 2025-07-15
Grant Date 2025-07-15
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Sato, Kodai
  • Bednar, Patrik
  • Kastella, Karol

39.

Tire

      
Application Number 29926567
Grant Number D1083765
Status In Force
Filing Date 2024-01-31
First Publication Date 2025-07-15
Grant Date 2025-07-15
Owner Bridgestone Corporation (Japan)
Inventor
  • Oztas, Aytek
  • Del Duca, Marco

40.

Display screen or portion thereof with animated graphical user interface

      
Application Number 29917863
Grant Number D1082829
Status In Force
Filing Date 2023-11-22
First Publication Date 2025-07-08
Grant Date 2025-07-08
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Sato, Kodai

41.

RUBBER FORMULATIONS COMPRISING HYDROGENATED ELASTOMER, NATURAL RUBBER, AND REINFORCED FILLER

      
Application Number US2024061948
Publication Number 2025/144926
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • BRIDGESTONE CORPORATION (Japan)
  • BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC (USA)
Inventor
  • Wei, Xiaoyu Michael
  • Magistrelli, Jeffrey M.
  • Hue, Ryan J.

Abstract

Embodiments of the present disclosure are directed to rubber formulations, wherein the rubber formulations include hydrogenated elastomer having a silane-functionalized end group and a degree of hydrogenation of greater than or equal to 50 mol.%. The hydrogenated elastomer includes, based on the total weight of the hydrogenated elastomer, a vinyl content of greater than or equal to about 15 wt.%, a cis content of about 30 wt.% to about 85 wt.%, and a styrene content of about 0 wt.% to about 15 wt.%. The rubber formulation further includes natural rubber in an amount of at least 50 phr and reinforcing filler including, based on a total weight of the reinforcing filler, 0 wt.% to 50 wt.% silica and 50 wt.% to 100 wt.% carbon black.

IPC Classes  ?

42.

RUBBER FORMULATIONS COMPRISING A STATISTICAL COPOLYMER COMPRISING VINYLBENZOCYCLOBUTANE

      
Application Number US2024061950
Publication Number 2025/144927
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • BRIDGESTONE CORPORATION (Japan)
  • BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC (USA)
Inventor
  • Hogan, Terrence Eugene
  • Salamant, Walter Anthony

Abstract

Embodiments of the present disclosure are directed to rubber formulations, wherein the formulations include a statistical copolymer. The statistical copolymer includes a polymerized, crosslinkable reaction product derived from a conjugated diene monomer and vinylbenzocyclobutane. The rubber formulation is substantially free of traditional rubber curatives.

IPC Classes  ?

  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08L 9/06 - Copolymers with styrene
  • C08L 91/00 - Compositions of oils, fats or waxesCompositions of derivatives thereof
  • C08K 3/04 - Carbon
  • C08K 3/36 - Silica
  • C08K 5/54 - Silicon-containing compounds
  • C08L 91/06 - Waxes
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

43.

RUBBER FORMULATIONS COMPRISING TWO-STAGE CURED STATISTICAL COPOLYMER COMPRISING A HIGH-TEMPERATURE CURE MONOMER

      
Application Number US2024061951
Publication Number 2025/144928
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • BRIDGESTONE CORPORATION (Japan)
  • BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC (USA)
Inventor
  • Kim, Hyeonjae
  • Hogan, Terrence Eugene
  • Salamant, Walter Anthony

Abstract

Embodiments of the present disclosure are directed to rubber formulations, wherein the formulations include a two-stage cured statistical copolymer. The two-stage cured statistical copolymer includes a polymerized reaction product of a conjugated diene monomer and a monomer capable of crosslinking at a high-temperature. The two-stage cured statistical copolymer undergoes a first stage cure at a first temperature less than or equal to about 180 °C to initiate sulfur crosslinking. The two-stage cured statistical copolymer undergoes a subsequent second stage cure at a second temperature greater than or equal to about 190 °C to initiate non-sulfur crosslinking.

IPC Classes  ?

  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • C08L 7/00 - Compositions of natural rubber
  • C08L 91/00 - Compositions of oils, fats or waxesCompositions of derivatives thereof
  • C08K 3/04 - Carbon
  • C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
  • C08K 3/22 - OxidesHydroxides of metals
  • C08K 3/06 - Sulfur
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

44.

FUNCTIONALIZED BUTADIENE POLYMERS IN TIRE COMPOUNDS AND METHOD OF MAKING SAME

      
Application Number US2024062062
Publication Number 2025/145007
Status In Force
Filing Date 2024-12-27
Publication Date 2025-07-03
Owner
  • BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC (USA)
  • BRIDGESTONE CORPORATION (Japan)
Inventor
  • Whyte, Jamie L.
  • Hue, Ryan J.
  • Salamant, Walter A.
  • Tamang, Sem

Abstract

A polymer and rubber composition for a truck and bus radial include: butadiene rubber polymers having polymer chain ends; the butadiene rubber polymers including (a) a 1,4-cis content of 90% or greater; and (b) a functional group including a heteroarylcarbonitrile molecule. 30% or more of the polymer chain ends of the butadiene rubber polymers are functionalized with the functional group. A functionalized butadiene rubber is included in a rubber composition in an amount of about 10 to about 60 phr and a reinforcing filler component includes carbon black in a range of about 25 to about 70 phr wherein the carbon black is a majority of the reinforcing filler component.

IPC Classes  ?

  • C08L 7/00 - Compositions of natural rubber
  • C08L 15/00 - Compositions of rubber derivatives
  • C08L 9/06 - Copolymers with styrene
  • C08C 19/22 - Incorporating nitrogen atoms into the molecule
  • C08F 136/06 - Butadiene
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

45.

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM

      
Application Number 18850054
Status Pending
Filing Date 2023-03-10
First Publication Date 2025-07-03
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Takasawa, Yuya
  • Jakircevic, Thierry

Abstract

An information processing device including an acquisition section that acquires values of plural tire related parameters related to a structure of a tire attached to a moving body, and a control section that, in cases in which at least one value of the tire related parameters is a specific value predetermined as a tire state indicating a structure of the tire has changed, performs control based on each value of the acquired plural tire related parameters to output instruction information indicating an instruction for the tire predetermined according to the tire state.

IPC Classes  ?

  • G07C 5/00 - Registering or indicating the working of vehicles
  • B60C 11/24 - Wear-indicating arrangements
  • B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre

46.

RADIATION SHIELDING COMPOSITES

      
Application Number 19004633
Status Pending
Filing Date 2024-12-30
First Publication Date 2025-07-03
Owner Bridgestone Corporation (Japan)
Inventor Rackaitis, Mindaugas

Abstract

A radiation shielding composite comprising a first component including a copolymer including unconjugated olefin-derived units, vinyl aromatic-derived units, and conjugated diene-derived units; and a second component including a radiation-shielding metal.

IPC Classes  ?

  • G21F 1/10 - Organic substancesDispersions in organic carriers
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
  • B29C 48/21 - Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
  • B29K 9/00 - Use of rubber derived from conjugated dienes, as moulding material
  • B29K 25/00 - Use of polymers of vinyl-aromatic compounds as moulding material
  • B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
  • B29K 105/24 - Condition, form or state of moulded material cross-linked or vulcanised
  • B29K 505/04 - Lead
  • B29K 505/06 - Tin
  • B29K 505/10 - Copper
  • B29K 505/14 - Noble metals, e.g. silver, gold or platinum
  • B29K 507/04 - Carbon
  • B29K 509/08 - Glass
  • B29L 9/00 - Layered products
  • B29L 31/00 - Other particular articles
  • G21F 1/08 - MetalsAlloysCermets, i.e. sintered mixtures of ceramics and metals

47.

RUBBER BLENDS CONTAINING REGENERATED RUBBER

      
Application Number US2024062069
Publication Number 2025/145012
Status In Force
Filing Date 2024-12-27
Publication Date 2025-07-03
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kim, Hyeonjae
  • Hartzell, Michael

Abstract

A method of preparing a rubber blend product that includes mixing regenerated rubber in a solvent to produce swollen regenerated rubber that is further blended with a mixture of another non-regenerated rubber such as natural rubber and an additional solvent to form a rubber blend mixture. The rubber blend mixture includes portions of the swollen regenerated rubber intertwined with the non-regenerated rubber. The rubber blend mixture is processed to remove portions of the solvents to form a rubber blend product for incorporation into rubber compositions for use in tires.

IPC Classes  ?

  • C08J 3/00 - Processes of treating or compounding macromolecular substances
  • C08J 7/02 - Chemical treatment or coating of shaped articles made of macromolecular substances with solvents, e.g. swelling agents
  • C08L 7/00 - Compositions of natural rubber
  • C08L 21/00 - Compositions of unspecified rubbers

48.

TREAD RUBBER COMPOSITION, TREAD RUBBER, AND TIRE

      
Application Number JP2024040222
Publication Number 2025/142169
Status In Force
Filing Date 2024-11-12
Publication Date 2025-07-03
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Saito Kosuke

Abstract

The present invention addresses the problem of providing a tread rubber composition which is capable of suppressing cracks in the tread part of a tire and achieving a high degree of balance between the wet grip performance and the low fuel consumption performance of the tire. The solution is a tread rubber composition containing a rubber component (A), a resin component (B), a filler (C), and an anti-aging agent (D), wherein the rubber component (A) includes an isoprene-based rubber, the content of the rubber component (B) is at least 1 part by mass and less than 50 parts by mass with respect to 100 parts by mass of the rubber component (A), the resin component (B) is at least partially hydrogenated, the difference in SP value between the resin component (B) and the isoprene-based rubber is 1.40 (cal/cm3)1/2 or less, the mass ratio of the resin component (B)/the isoprene-based rubber is at least 0.5, and the anti-aging agent (D) is at least one selected from the group consisting of compounds represented by a specific structure.

IPC Classes  ?

  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 5/00 - Use of organic ingredients
  • C08L 9/06 - Copolymers with styrene
  • C08L 101/00 - Compositions of unspecified macromolecular compounds

49.

Motorcycle tire

      
Application Number 29918404
Grant Number D1081527
Status In Force
Filing Date 2023-11-28
First Publication Date 2025-07-01
Grant Date 2025-07-01
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Ueno, Takaho
  • Hayashi, Takaki

50.

GOLF CLUB HEAD

      
Application Number 18955348
Status Pending
Filing Date 2024-11-21
First Publication Date 2025-06-26
Owner BRIDGESTONE SPORTS CO., LTD. (Japan)
Inventor Yano, Takeyuki

Abstract

A golf club head is of an iron type. The golf club head includes a face portion that includes a face surface configured to hit a ball, and score lines recessed from the face surface and extending in a toe-heel direction. A first region, a second region, and a third region are sequentially defined in the face surface located between the score lines next to each other. The first, second, and third regions are arranged in a direction perpendicular to the score lines. The first region includes first fine grooves recessed from the face surface and extending in the direction perpendicular to the score lines. The second region includes second fine grooves recessed from the face surface and extending in a direction oblique to the score lines. The third region includes third fine grooves recessed from the face surface and extending in the direction perpendicular to the score lines.

IPC Classes  ?

51.

GOLF BALL

      
Application Number 18977019
Status Pending
Filing Date 2024-12-11
First Publication Date 2025-06-26
Owner Bridgestone Sports Co., Ltd. (Japan)
Inventor
  • Iizuka, Kae
  • Mizuno, Yuki
  • Shinohara, Hirotaka

Abstract

In a golf ball having a core and a cover with numerous dimples thereon, the cover has a given material hardness, the ball has a specific compressive deformation when compressed under a given load, the outer surface of the cover has a paint coat thereon composed of an inner layer and an outer layer, the inner paint layer being formed of a coating composition containing specific base resins and the outer paint layer being formed of a two-part curable urethane coating composition which contains less than 5 wt % of an inorganic or organic filler based on the solids content of the base resins, and the paint layers have optimized ratios between their thicknesses at the dimple center and at the dimple edges. This golf ball satisfies the properties desired in practice golf balls, such as scratch resistance, peeling resistance and durability to cracking.

IPC Classes  ?

52.

ACTUATOR ANGLE ESTIMATION DEVICE AND ACTUATOR ANGLE ESTIMATION METHOD

      
Application Number JP2024042402
Publication Number 2025/134735
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-26
Owner
  • BRIDGESTONE CORPORATION (Japan)
  • THE UNIVERSITY OF TOKYO (Japan)
Inventor
  • Oono, Shingo
  • Kawashima, Kenji
  • Miyazaki, Tetsuro
  • Shen, Junyi

Abstract

An actuator angle estimation device 10 is an actuator bend angle estimation device 10 comprising a tube member 24 that has a first chamber 25A and a second chamber 25B which are spaced apart from each other, disposed along the axial direction, and arranged parallel to each other. The actuator bend angle estimation device 10 estimates the bend angle of an elongated actuator body section 22 that is bent as a result of one side of a tube wall being shortened in the axial direction in response to a rise in the internal pressure of the first chamber 25A. The actuator bend angle estimation device 10 additionally comprises: a fluid supply unit that supplies a fluid to the first chamber 25A; a pressure sensor 62 that acquires the internal pressure of the second chamber 25B; and an angle estimation unit that estimates the bend angle of the actuator body 22 on the basis of the internal pressure of the second chamber 25B, which is in a sealed state, as acquired by the pressure sensor 62.

IPC Classes  ?

  • F15B 15/10 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type
  • G01B 21/22 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapersMeasuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for testing the alignment of axes

53.

INFORMATION PROCESSING DEVICE, ESTIMATION METHOD, AND ESTIMATION PROGRAM

      
Application Number JP2024044305
Publication Number 2025/134953
Status In Force
Filing Date 2024-12-13
Publication Date 2025-06-26
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Hojo, Masahiro

Abstract

A center server 100 that serves as an information processing device comprises: a reception unit for receiving identification information of a tire T acquired from an RFID tag 210 provided to said tire T; an acquisition unit for acquiring recycle information that is recycling-related information associated with the identification information received by the reception unit; and an estimation unit for estimating, on the basis of the recycle information acquired by the acquisition unit, a recycle index that is an index related to recycling of the tire T.

IPC Classes  ?

54.

ADHESIVE AGENT COMPOSITION, ORGANIC FIBROUS MATERIAL, RUBBER ARTICLE, ORGANIC FIBER-RUBBER COMPOSITE, AND TIRE

      
Application Number JP2024029674
Publication Number 2025/134428
Status In Force
Filing Date 2024-08-21
Publication Date 2025-06-26
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Nakamura Masaaki

Abstract

The present invention addresses the problem of providing an adhesive agent composition that can ensure desired adhesiveness without using resorcin and that does not compromise the workability during use. This adhesive agent composition, which is a solution to the problem, is characterized by comprising (A) a rubber latex having an unsaturated diene, and (B) an aqueous compound having two or more polymerizable (meth)acrylate structures, (meth)acrylamide structures, or (meth)allyl structures in the molecule, and further comprising (D) an aqueous component having a plurality of phenolic hydroxy groups in the molecule, (E) an aqueous component having a plurality of amino groups in the molecule, and (F) at least one compound selected from the group consisting of compounds including an amide bond structure.

IPC Classes  ?

  • C09J 109/10 - Latex
  • B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
  • C09J 4/00 - Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
  • C09J 4/02 - Acrylmonomers
  • C09J 11/06 - Non-macromolecular additives organic
  • C09J 107/02 - Latex
  • C09J 175/04 - Polyurethanes
  • D06M 14/02 - Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics or fibrous goods made from such materials on to materials of natural origin
  • D06M 15/59 - PolyamidesPolyimides
  • D06M 15/263 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acidsSalts or esters thereof
  • D06M 15/356 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
  • D06M 15/564 - Polyureas, polyurethanes or other polymers having ureide or urethane linksPrecondensation products forming them
  • D06M 15/693 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compoundsSuch treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
  • D07B 1/06 - Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
  • D07B 1/16 - Ropes or cables with an enveloping sheathing or inlays of rubber or plastics

55.

GOLF CLUB HEAD

      
Application Number 18955407
Status Pending
Filing Date 2024-11-21
First Publication Date 2025-06-26
Owner BRIDGESTONE SPORTS CO., LTD. (Japan)
Inventor Takahashi, Hiroshi

Abstract

A golf club head includes a head body that includes a face portion and a sole portion; a cavity that is provided in the head body and at a rear-surface side of the face portion; a fiber-reinforced resin layer that is disposed in the cavity and at a rear surface of the face portion; and a resin member that is disposed in the cavity, close to the sole portion, and at a rear surface of the fiber-reinforced resin layer. The resin member extends in a toe-heel direction.

IPC Classes  ?

  • A63B 53/04 - Heads
  • A63B 53/08 - Golf clubs with special arrangements for obtaining a variable impact

56.

HOSE WITH INDICATOR

      
Application Number 18954801
Status Pending
Filing Date 2024-11-21
First Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kuroda, Taisuke
  • Suzuki, Koji
  • Kagami, Ryo
  • Sugimura, Takayuki

Abstract

The provided is a hose with an indicator (30), comprising: a hose body (30a) made of rubber that forms a fluid flow path therein; a fitting (30b) made of metal connected to an end of the hose body; and an indicator (31) in which color components are extracted by a deterioration state determination device provided with a deterioration determination model and a color change database in order to determine deterioration state of the hose body, wherein the indicator has a plurality of color patterns (33) composed of colors that are sensitive to deterioration factors, and is attached to an external surface of the hose body so that the color patterns can be seen from each of at least two different directions when the hose is viewed from those directions.

IPC Classes  ?

  • F16L 57/06 - Protection of pipes or objects of similar shape against external or internal damage or wear against wear
  • F16L 11/04 - Hoses, i.e. flexible pipes made of rubber or flexible plastics

57.

HOSE WITH INDICATOR

      
Application Number 18954830
Status Pending
Filing Date 2024-11-21
First Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kuroda, Taisuke
  • Suzuki, Koji
  • Kagami, Ryo
  • Sugimura, Takayuki

Abstract

The provided is a hose with an indicator (30), comprising: a hose body (30a) made of rubber that forms a fluid flow path therein; a fitting (30b) made of metal connected to an end of the hose body; and an indicator (31) in which color components are extracted by a deterioration state determination device provided with a deterioration determination model and a color change database in order to determine deterioration state of the hose body, wherein a first indicator (31a) is attached to an external surface of the hose body, a second indicator (31b) is attached to an external surface of the fitting, and the color component extracted from the first indicator is compared with the color component of the second indicator in determining deterioration state of the hose body.

IPC Classes  ?

  • F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting

58.

TIRE

      
Application Number JP2024040044
Publication Number 2025/126743
Status In Force
Filing Date 2024-11-11
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada Takehito
  • Hoshino Hironori

Abstract

Provided is a tire with which the position where a communication device is embedded is easily ascertained and in which the durability of the communication device is improved. A tire (1) comprises at least one mark (21) provided on a tire outer surface (1ds) of a tire side part (1d), and a communication device (10) embedded inside the tire side part (1d). At least one mark (21) of the at least one mark (21) is a recessed mark (21(21a)) provided on the tire outer surface (1ds) of the tire side part (1d). At least part of the communication device (10) is embedded inside the tire side part (1d) positioned directly below the recessed mark (21(21a)).

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof

59.

VULCANIZED RUBBER COMPOSITION FOR TIRES, AND TIRE

      
Application Number JP2024040388
Publication Number 2025/126760
Status In Force
Filing Date 2024-11-13
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Ikuta Akifumi

Abstract

Provided is a vulcanized rubber composition for tires, which has excellent on-ice performance. The present invention is characterized by being obtained by vulcanizing a rubber composition comprising a rubber component that contains a modified conjugated diene-based polymer having a (meth)acrylic acid ester in the molecule, and a filler that contains at least silica. The present invention is characterized in that the content of silica in the rubber composition is 30-70 parts by mass with respect to 100 parts by mass of the rubber component, and the proportion of the silica in the filler is 55 mass% or more. The present invention is further characterized by having a plurality of voids.

IPC Classes  ?

  • C08L 15/00 - Compositions of rubber derivatives
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 3/36 - Silica
  • C08K 5/20 - Carboxylic acid amides
  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

60.

HYDRAULIC ACTUATOR

      
Application Number JP2024042401
Publication Number 2025/126869
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Nakakita, Yukinori
  • Oono, Shingo

Abstract

A hydraulic actuator 20 comprises: a cylindrical tube 24; a sleeve 26 which covers the outer peripheral surface of the tube 24 and that, by expanding the tube, widens the tube in the radial direction while restricting extension of the tube in the axial direction; a pair of sealing members 32 in which is formed an insertion part 32B having a tapered section 49 having a diameter that becomes smaller approaching the depth side of insertion, and which seals a tube end section; a constraining member 28 which is provided so as to span from one side to the other side of the pair of sealing members 32, which is disposed so as to be inclined such that a constraining end section 29 runs along the tapered section 49, which resists compression in the axial direction, and which can be deformed in an intersecting direction intersecting the axial direction; and a fixing member 36 which fixes the sleeve 26 and the constraining member 28 to the insertion part 32B from the outside of the sleeve 26 at a position corresponding to the constraining end section 29 of the constraining member 28.

IPC Classes  ?

  • F15B 15/10 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type

61.

ACTUATOR ATTACHMENT STRUCTURE AND ROBOT HAND

      
Application Number JP2024043891
Publication Number 2025/127079
Status In Force
Filing Date 2024-12-11
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Iwami, Nobuhiko
  • Maejima, Tatsuru

Abstract

An actuator attachment structure 19 includes: a plurality of fluid pressure actuators 20 each having an actuator body part 22 which is deformed by being curved due to pressure by a fluid supplied to the inside, and an attachment part 32 in which a flow passage R for supplying the fluid from one end in the longitudinal direction of the actuator body part 22 to the inside of the actuator body part 22 is formed; and a housing 40 which has an internal space into which the fluid is supplied, which has on the outer surface a plurality of attached parts 60 each corresponding to the attachment part 32 of each fluid pressure actuator 20, and in which the flow passage R is connected to the space by attaching the attachment part 32 to the attached part 60.

IPC Classes  ?

  • B25J 15/12 - Gripping heads having finger members with flexible finger members
  • B25J 15/10 - Gripping heads having finger members with three or more finger members
  • F15B 15/10 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type

62.

TIRE SET AND TIRE WHEEL ASSEMBLY

      
Application Number JP2024021230
Publication Number 2025/126516
Status In Force
Filing Date 2024-06-11
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Sato Hiroshi
  • Taniguchi Yoshihiro

Abstract

This tire set comprises a plurality of non-pneumatic tires and is configured such that all the non-pneumatic tires constituting the tire set are attached to one wheel. The cross-sectional width of at least one of the plurality of non-pneumatic tires is 75 mm or less (or the ratio of the cross-sectional width w of at least one of the plurality of non-pneumatic tires to the total sum W of the cross-sectional widths of all the non-pneumatic tires is 0.5 or less), and the total sum of the cross-sectional widths of all the non-pneumatic tires is 100 mm or more. This tire wheel assembly is obtained by assembling the tire set to a rim part of the wheel. All the non-pneumatic tires are arranged in a width direction and assembled to the rim part, and a space is provided between the non-pneumatic tires adjacent to each other in the width direction.

IPC Classes  ?

63.

TIRE AND TIRE MANUFACTURING METHOD

      
Application Number JP2024021760
Publication Number 2025/126519
Status In Force
Filing Date 2024-06-14
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

A tire 10 comprises: a resin frame body 20 formed from a thermoplastic resin, the resin frame body 20 having a bead part 12, a side part 14, and a crown part 16, and being such that a recessed part 80 is formed in an inner peripheral surface 50I of a thick-walled part; and an RFID tag 70 accommodated in the recessed part 80.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B29D 30/08 - Building tyres
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/01 - Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres

64.

TIRE, AND TIRE MANUFACTURING METHOD

      
Application Number JP2024021761
Publication Number 2025/126520
Status In Force
Filing Date 2024-06-14
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

A tire 10 is formed of a thermoplastic resin, and includes: a resin skeleton 20 having a bead 12, a side section 14, and a crown section 16; and an RFID tag 70 attached to an inclined section 48 of the bead 12.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B29D 30/08 - Building tyres
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/01 - Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres

65.

TIRE, AND METHOD FOR PRODUCING TIRE

      
Application Number JP2024021762
Publication Number 2025/126521
Status In Force
Filing Date 2024-06-14
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

A tire 10 comprises: a knitted fabric layer 41 having a knitted fabric body 36 that is formed of a first fibrous material 38, has a mesh having a folded-over shape and being continuous in the tire circumferential direction and the tire radial direction, and is endless in the circumferential direction, and a reinforcement body 40 that is formed of a reinforcing fibrous material, and is knitted into the knitted fabric body 36 in an evenly spaced manner in the tire circumferential direction to limit extension of the knitted fabric body 36 in the tire radial direction; a resin skeleton body 20 which is formed of a thermoplastic resin, and in which the knitted fabric layer 41 is integrated and arranged from a bead section 12 having a bead core 18 embedded therein to a crown section 16; and an RFID tag 70 that is embedded in the resin skeleton body 20 inward or outward of the knitted fabric layer 41 in the tire axial direction.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B29D 30/08 - Building tyres
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/01 - Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres
  • B60C 9/11 - Woven, braided, or knitted plies

66.

TIRE RECYCLING INFORMATION PRESENTATION METHOD, TIRE RECYCLING INFORMATION PRESENTATION PROGRAM, TIRE RECYCLING INFORMATION PRESENTATION DEVICE, AND TIRE RECYCLING INFORMATION PRESENTATION SYSTEM

      
Application Number JP2024021763
Publication Number 2025/126522
Status In Force
Filing Date 2024-06-14
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

An acquisition unit 50 acquires individual information by reading, via a reader, individual information stored in advance in an RFID tag 34 disposed in a tire, a communication unit 54 accesses a database 44 of a database server, and the communication unit 54 acquires, from the database, recycling information pertaining to the tire corresponding to the individual information acquired by the acquisition unit 50. The display processing unit then presents the recycling information pertaining to the tire by performing a process for displaying the recycling information acquired by the communication unit on a display unit.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
  • G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
  • G06Q 10/30 - Administration of product recycling or disposal

67.

TIRE

      
Application Number JP2024022107
Publication Number 2025/126524
Status In Force
Filing Date 2024-06-18
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada Takehito
  • Hoshino Hironori

Abstract

This tire comprises: side reinforcement rubber 2 having a crescent-shaped cross section and disposed on a side wall section 1b of a tire; and a communication device 10 embedded in the tire. The side reinforcement rubber has a side reinforcement rubber joint part 2j in which end parts in the tire circumferential direction of the side reinforcement rubber are joined to each other. At least a portion of the communication device overlaps the side reinforcement rubber joint part on a projected plane for when the tire is projected in the tire width direction.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 17/00 - Tyres characterised by means enabling restricted operation in damaged or deflated conditionAccessories therefor

68.

TIRE MOLDING DRUM

      
Application Number JP2024024128
Publication Number 2025/126532
Status In Force
Filing Date 2024-07-03
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Iyanagi, Satoshi

Abstract

The tire molding drum 4 molds a ring-shaped tire member on the outer peripheral surface of a drum 40. The drum 40 has a first segment 31 on which the front end 22F of a tread member 22 is disposed during winding and a second segment 32 on which the rear end 22R of the tread member 22 is disposed. The first segment 31 and the second segment 32 each have center segments 41, 42 and end segments 51, 52 around which a belt member 24 is wound. The end segments 51 have needle-equipped segments 51A having a plurality of needles 54 inserted into the front end 22F of the tread member 22 and step parts 55 for supporting the tread member 22, and needle-less segments 51B. The end segments 52 and the needle-less segments 51B support a lower surface of the tread member 22.

IPC Classes  ?

  • B29D 30/24 - Drums
  • B29D 30/26 - Accessories or details, e.g. membranes or transfer rings
  • B29D 30/30 - Applying the layersGuiding or stretching the layers during application

69.

TIRE RUNNING PERFORMANCE MEASUREMENT DEVICE

      
Application Number JP2024024809
Publication Number 2025/126540
Status In Force
Filing Date 2024-07-09
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Tsuchiya Kei

Abstract

A tire running performance measurement device 1 for measuring the running performance of a measurement target tire ET includes: a vehicle V; and a measurement target tire support tool S configured separately from the vehicle yet attached to the vehicle, and configured to support the measurement target tire. The measurement target tire support tool is configured to be able to adjust a load applied to the measurement target tire.

IPC Classes  ?

70.

PIPE JOINT

      
Application Number JP2024024840
Publication Number 2025/126541
Status In Force
Filing Date 2024-07-09
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Udo Fumiyasu
  • Yosioka Maki

Abstract

Disclosed is a pipe joint in which, when a nut member 20;70 in which a flat inner circumferential surface 23;73 is fitted coaxially on a core metal fitting cylindrical part 11 of a core metal fitting 10;60 is in a predetermined positional relationship in the axial direction with respect to the core metal fitting 10;60, a core metal fitting-side outer circumferential groove 11v;61v and a nut-side inner circumferential groove 23v;73v are matched to form a ring fitting hole V, and by fitting of a locking ring 30;80 in the ring fitting hole V, the nut member 20;70 is locked and attached to the core metal fitting 10;60 so as to be rotatable relative thereto and restricted from moving relative thereto in the direction away from the core metal fitting 10;60 in the axial direction, and because the groove depth of the core metal fitting-side outer circumferential groove 11v;61v is greater than the groove depth of the nut-side inner circumferential groove 23v;73v, the pipe joint can be assembled easily and appropriately without requiring dedicated equipment, and leakage of fluid can be prevented during fastening of the nut member and when the pressure of the fluid fluctuates.

IPC Classes  ?

  • F16L 19/065 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
  • F16L 19/025 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
  • F16L 33/207 - Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of toolsArrangements using such members only a sleeve being contracted on the hose

71.

TIRE

      
Application Number JP2024027947
Publication Number 2025/126559
Status In Force
Filing Date 2024-08-05
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

This tire has: an annular resin-made tire frame member provided with a bead part, a side part continuous with the tire-radial-direction outer side of the bead part, and a crown part continuous with the tire-width-direction inner side of the side part; and an RFID tag disposed on the side part so as to be integrated with the side part, the longitudinal direction of the RFID tag following the tire radial direction.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/01 - Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres

72.

TIRE

      
Application Number JP2024027948
Publication Number 2025/126560
Status In Force
Filing Date 2024-08-05
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

This tire has: an annular resin-made tire frame member provided with at least a bead part; a tread member that is disposed on the tire-radial-direction outer side of the tire frame member and constitutes a tire tread; a tire frame part formed on the tire-radial-direction outer side of the tire frame member and farther inward in the tire width direction than the tire-width-direction end part of the tread member, the tire-width-direction outer side of the tire frame part being lowered toward the tire-radial-direction inner side; a coating layer formed on the outer side of the tire frame member from the bead part to the tire frame part; and an RFID tag provided to the tire frame part.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/01 - Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres

73.

TIRE AND NON-PNEUMATIC TIRE

      
Application Number JP2024028557
Publication Number 2025/126568
Status In Force
Filing Date 2024-08-08
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

This tire includes: an annular tire framework member which includes bead portions, side portions continuous with the bead portions on the radially outer side of the tire, and a crown portion continuous with the side portions on the inside in the width direction of the tire; a spiral belt which is disposed on outside of the crown portion in the radial direction of the tire and which is formed by winding a resin coated cord, obtained by coating one or a plurality of reinforcing cords with a resin, in a spiral shape in the circumferential direction of the tire; and an RF tag which is disposed on the outside of the crown portion in the radial direction of the tire, and which has at least a portion disposed on an extension line of the resin coated cord that extends from one end of the resin coated cord in a plan view.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 7/00 - Non-inflatable or solid tyres
  • B60C 9/22 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre

74.

HYDRAULIC ACTUATOR

      
Application Number JP2024028795
Publication Number 2025/126569
Status In Force
Filing Date 2024-08-09
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Oono, Shingo

Abstract

A sleeve 26 of a hydraulic actuator 20 has a first group WA and a second group WE and is formed by alternately crossing respective yarn materials W in the first group WA and the second group WE. In each yarn material W, when the pressure of fluid applied to a tube 24 is at a maximum, a length X1 of the yarn material W in a direction φ orthogonal to an extension direction θ and a radial direction R is not more than 4 times a length Y1 in the radial direction R.

IPC Classes  ?

  • F15B 15/10 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type
  • F15B 15/00 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith

75.

RFID PATCH AND TIRE

      
Application Number JP2024029105
Publication Number 2025/126570
Status In Force
Filing Date 2024-08-15
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

In this invention, an RFID patch and a tire involve: an RFID tag having an RFID chip, an antenna connected to the RFID chip, and a coating resin layer covering the RFID chip and the antenna; and an adhesive layer having a thickness of 1 mm or more and serving to bond the RFID tag and a pasting object.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/01 - Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres

76.

RFID PATCH AND TIRE

      
Application Number JP2024029106
Publication Number 2025/126571
Status In Force
Filing Date 2024-08-15
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

This RFID patch and tire have: an RFID tag that has an RFID chip, an antenna connected to the RFID chip, and an RFID coating layer which is composed of a rubber material and coats the RFID chip and the antenna; and an adhesive layer that bonds together the RFID tag and the tire, which has a frame member composed of a resin material. The hardness of the RFID coating layer is lower than that of the resin material constituting the frame member.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/01 - Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres

77.

COMPLEX POLYMER AND METHOD OF MANUFACTURING THE SAME, AND RUBBER COMPOSITION AND METHOD OF MANUFACTURING THE SAME

      
Application Number 18847870
Status Pending
Filing Date 2023-01-11
First Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kawada, Midori
  • Tardif, Olivier
  • Hamatani, Satoshi

Abstract

The problem of the present disclosure is to provide a polymer having improved tensile strength at break (TB) and elongation at break (EB), and the solution is to provide a complex polymer including a polymer chain containing a diene unit and/or an olefin unit and two or more functional groups containing an oxygen atom bonded to a main chain and/or a side chain of the polymer chain. The oxygen atoms in at least two of the functional groups are bonded to adjacent carbon atoms in the main chain and/or the side chain of the polymer chain, and at least two of the functional groups are complexed with a metal ion of an element of Groups 3 to 12 in the periodic table.

IPC Classes  ?

  • C08G 61/08 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
  • C08J 3/20 - Compounding polymers with additives, e.g. colouring
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
  • C08K 3/06 - Sulfur
  • C08K 3/08 - Metals
  • C08K 3/16 - Halogen-containing compounds
  • C08K 5/09 - Carboxylic acidsMetal salts thereofAnhydrides thereof
  • C08K 5/18 - AminesQuaternary ammonium compounds with aromatically bound amino groups
  • C08K 5/31 - GuanidineDerivatives thereof
  • C08K 5/47 - Thiazoles

78.

GOLF BALL

      
Application Number 18978337
Status Pending
Filing Date 2024-12-12
First Publication Date 2025-06-19
Owner BRIDGESTONESPORTSCoO.,LTD. (Japan)
Inventor Mochizuki, Katsunobu

Abstract

In a golf ball having a rubber core and a cover of at least one layer encasing the core, at least one cover layer is formed of a resin composition that includes a thermoplastic polyurethane and an inorganic filler. The inorganic filler content is at least 5 parts by weight per 100 parts by weight of the thermoplastic polyurethane. The resin composition has an abrasion volume in the Taber abrasion test according to JIS-K 7311 of more than 0.003 cm3 and satisfies formula (1) below In a golf ball having a rubber core and a cover of at least one layer encasing the core, at least one cover layer is formed of a resin composition that includes a thermoplastic polyurethane and an inorganic filler. The inorganic filler content is at least 5 parts by weight per 100 parts by weight of the thermoplastic polyurethane. The resin composition has an abrasion volume in the Taber abrasion test according to JIS-K 7311 of more than 0.003 cm3 and satisfies formula (1) below 7 . 0 × 1 ⁢ 0 4 > ( η1 - η2 ) / H 3 , ( 1 ) In a golf ball having a rubber core and a cover of at least one layer encasing the core, at least one cover layer is formed of a resin composition that includes a thermoplastic polyurethane and an inorganic filler. The inorganic filler content is at least 5 parts by weight per 100 parts by weight of the thermoplastic polyurethane. The resin composition has an abrasion volume in the Taber abrasion test according to JIS-K 7311 of more than 0.003 cm3 and satisfies formula (1) below 7 . 0 × 1 ⁢ 0 4 > ( η1 - η2 ) / H 3 , ( 1 ) wherein H is the Shore D hardness and η1 and η2 are respectively the 210° C. and 220° C. melt viscosities (Pa·s) at a shear rate of 6,080 sec−1 when measured with a capillary rheometer in accordance with ISO 11443: 1995. The cover resin material has improved flowability when molded and improved trimmability after molding.

IPC Classes  ?

79.

ENVELOPE SPREADER SYSTEM FOR ENVELOPING A RETREADED TIRE

      
Application Number 19069672
Status Pending
Filing Date 2025-03-04
First Publication Date 2025-06-19
Owner BRIDGESTONE BANDAG, LLC (USA)
Inventor
  • Meier, Merle E.
  • Benitez, Jaime J.
  • Nartker, Jeremiah J.

Abstract

An envelope spreader system includes a chassis having an opening to receive a tire assembly, a primary link including a single elongated member rotatably coupled to the chassis at a first fixed pivot point and extending into the opening from a primary link first end to a primary link second end, a first engaging member coupled to the primary link second end and configured to engage a tire envelope at a location corresponding to the location of the primary link second end, a secondary link including a single elongated member rotatably coupled to the chassis at a second fixed pivot point and extending into the opening from a secondary link first end to a secondary link second end, and a second engaging member coupled to the secondary link second end and configured to engage the tire envelope at a location corresponding to the location of the secondary link second end.

IPC Classes  ?

80.

NON-PNEUMATIC TIRE

      
Application Number JP2024021213
Publication Number 2025/126514
Status In Force
Filing Date 2024-06-11
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada Takehito
  • Sukegawa Shin
  • Ito Yujiro
  • Hoshino Hironori

Abstract

This non-pneumatic tire comprises: a wheel member that can be attached to an axle; a ring member that is attached to the wheel member; and a communication device. The ring member comprises: an inner cylinder body that is attached to the wheel member; an outer cylinder body that surrounds the outer side of the inner cylinder body in the tire radial direction; and a connection member that connects the inner cylinder body to the outer cylinder body and is elastically deformable between the inner cylinder body and the outer cylinder body. The communication device is fixed to the wheel member or to a surface of the inner cylinder body of the ring member that is exposed to the outside.

IPC Classes  ?

  • B60C 7/00 - Non-inflatable or solid tyres
  • B60C 19/00 - Tyre parts or constructions not otherwise provided for

81.

NON-PNEUMATIC TIRE

      
Application Number JP2024021558
Publication Number 2025/126518
Status In Force
Filing Date 2024-06-13
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada Takehito
  • Sukegawa Shin
  • Ito Yujiro
  • Hoshino Hironori

Abstract

A non-pneumatic tire according to the present invention comprises a wheel member that can be attached to an axle, a ring member that is mounted to the wheel member, and a communication device that is embedded in the ring member. The ring member is provided with an inner cylinder body that is fixed to the wheel member, an outer cylinder body that surrounds the tire-radial-direction outer side of the inner cylinder body, and a connection member that connects the inner cylinder body and the outer cylinder body and is elastically deformable between the inner cylinder body and the outer cylinder body. The communication device is embedded in the inner cylinder body or the outer cylinder body.

IPC Classes  ?

  • B60C 7/00 - Non-inflatable or solid tyres
  • B60C 19/00 - Tyre parts or constructions not otherwise provided for

82.

TIRE

      
Application Number JP2024022110
Publication Number 2025/126525
Status In Force
Filing Date 2024-06-18
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada Takehito
  • Hoshino Hironori

Abstract

A tire comprising: a side reinforcement rubber 2 having a crescent-shaped cross-section and disposed on a sidewall section 1b of the tire; and a communication device 10 embedded in the tire, wherein the side reinforcement rubber has a side reinforcement rubber joint section at which end portions of the side reinforcement rubber in the tire circumferential direction are joined together, and the entire communication device is located in a prescribed tire circumferential direction region Kr extending over a tire angle range of 90° around a prescribed tire circumferential direction position Kb 180° away from the center in the tire circumferential direction of the side reinforcement rubber joint section.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 17/00 - Tyres characterised by means enabling restricted operation in damaged or deflated conditionAccessories therefor

83.

TIRE

      
Application Number JP2024027949
Publication Number 2025/126561
Status In Force
Filing Date 2024-08-05
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino, Hironori

Abstract

This tire includes: a tire-framework member that is annular and made of resin and that comprises a bead part, a side part which runs to the outer side in a tire radial direction of the bead part, and a crown part which runs to the inner side in the tire width direction of the side part; a thickness part formed on the side part and having a thickness in the tire width direction thicker than that of another part of the side part by projecting in the tire width direction more than the another part; and an RFID tag provided to the thickness part so as to be integrated with the thickness part.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 5/01 - Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres

84.

TIRE AND NON-PNEUMATIC TIRE

      
Application Number JP2024028556
Publication Number 2025/126567
Status In Force
Filing Date 2024-08-08
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kamada, Takehito
  • Sukegawa, Shin
  • Ito, Yujiro
  • Hoshino,hironori

Abstract

This tire has: an annular tire frame member provided with a bead part, a side part continuous with the outer side of the bead part in the tire radial direction, and a crown part continuous with the inner side of the side part in the tire width direction; a spiral belt that is disposed on the outer side of the crown part in the tire radial direction and is formed by spirally winding, in the tire circumferential direction, a coating cord in which one or a plurality of reinforcement cords are coated with resin or rubber; and an RF tag that is disposed on the outer side of the crown part in the tire radial direction within a second division region positioned on the opposite side in the tire radial direction from a first division region including a region where one end part and the other end part of the coating cord overlap in the tire circumferential direction, among division regions that divide the tire frame member into four parts in the tire circumferential direction.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B60C 7/00 - Non-inflatable or solid tyres
  • B60C 9/22 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre

85.

ELASTIC COMPOSITION

      
Application Number JP2024029356
Publication Number 2025/126574
Status In Force
Filing Date 2024-08-19
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Urata, Tomohiro
  • Nishida, Mitsuhiro
  • Kaga, Norihiko

Abstract

The present disclosure achieves an elastic composition with which displacement of an object can be detected with a simple structure. The elastic composition is constituted by a rubber composition comprising a base part and protrusions that protrude from a surface of the base part, are distributed along said surface, are magnetized, and are elastically deformed due to an external force.

IPC Classes  ?

  • G01L 1/00 - Measuring force or stress, in general

86.

INFORMATION PROCESSING DEVICE, CONTROL METHOD THEREFOR, AND PROGRAM

      
Application Number JP2024039716
Publication Number 2025/126731
Status In Force
Filing Date 2024-11-07
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Kitahara Atsushi

Abstract

The present invention more effectively reduces discomfort of occupants, which is caused by a noise when the road surface condition switches. An information processing device 10 comprises a control unit 11 for: acquiring audio information of a noise which is generated during traveling of a vehicle 50 and is sensed by a microphone 15; generating, on the basis of the acquired audio information, a cancellation sound for canceling a road noise caused by unevenness of a road surface G on which the vehicle 50 travels; and causing a speaker 16 to output the generated cancellation sound. The control unit 11: acquires road surface information indicating the condition of the road surface G in a direction in which the vehicle 50 advances; detects, on the basis of the acquired road surface information, a switching point at which the condition regarding the unevenness of the road surface G switches; and, in response to the detection of the switching point, causes the speaker 16 to output a noise sound obtained by imitating the road noise in a fixed transition section which is before or after the switching point passed along due to traveling by the vehicle 50 and in which the degree of unevenness of the road surface is smaller.

IPC Classes  ?

  • G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
  • B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the likeArrangement of controls thereof
  • G10K 15/04 - Sound-producing devices

87.

INFORMATION PROCESSING DEVICE, CONTROL METHOD THEREFOR, AND PROGRAM

      
Application Number JP2024039717
Publication Number 2025/126732
Status In Force
Filing Date 2024-11-07
Publication Date 2025-06-19
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kitahara Atsushi
  • Ishihara Taiga

Abstract

This information processing device comprises a control unit that generates, on the basis of characteristic information indicating characteristics of a tire of a vehicle, a cancellation sound for cancelling noise generated due to the characteristics of the tire, and causes a speaker to output the generated cancellation sound.

IPC Classes  ?

  • G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
  • B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the likeArrangement of controls thereof

88.

RUBBER COMPOSITION AND RUBBER PRODUCT

      
Application Number 18837296
Status Pending
Filing Date 2023-02-28
First Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Yukimura, Noriaki
  • Kotani, Kyohei
  • Iwasaki, Shinta

Abstract

The problem to be solved by the present disclosure is to provide a rubber composition that achieves both thermal degradation resistance and breaking resistance. The solution is a rubber composition including a diene-based rubber (A), a heterocyclic compound (B) having a six-membered aromatic heterocyclic ring, a metal salt (C) (excluding metal oxides, metal carbonate salts, and metal salts of fatty acids with 10 or more carbon atoms), an organic peroxide (D), and a carbon black (E). The mass ratio (D/C) of the organic peroxide (D) to the metal salt (C) is preferably 0.1 to 10.

IPC Classes  ?

  • C08K 5/3477 - Six-membered rings
  • C08F 136/02 - Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
  • C08K 3/22 - OxidesHydroxides of metals
  • C08K 3/36 - Silica
  • C08K 5/14 - Peroxides

89.

FLUID PRESSURE ACTUATOR

      
Application Number 18843285
Status Pending
Filing Date 2023-01-10
First Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Oono, Shingo
  • Fujita, Shungo

Abstract

Provided is a fluid pressure actuator in which a bamboo shoot part is formed on a free end side of the sealing member to enable engaging and retaining a cover member that is separate from the fluid pressure actuator.

IPC Classes  ?

  • F15B 15/10 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type
  • F16L 57/00 - Protection of pipes or objects of similar shape against external or internal damage or wear

90.

REPAIR PATCH, PRE-CURED TREAD, AND TIRE

      
Application Number 18718802
Status Pending
Filing Date 2022-10-17
First Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Yamamoto, Taku
  • Moriguchi, Akira

Abstract

A repair patch (70) is a repair patch to be attached to a tire and includes an indicator portion (31a) having color components to be extracted by a degradation state determination apparatus that includes a degradation state model and a color change database for determining a degradation state of the tire. The repair patch also includes a reinforcement portion (71) to be bonded to the tire to reinforce the tire. The indicator portion includes a medium layer having printed thereon an identifier and a color pattern having a plurality of colors applied to different positions, the plurality of colors having different sensitivities to a degradation factor.

IPC Classes  ?

  • B60C 19/00 - Tyre parts or constructions not otherwise provided for
  • B29C 73/10 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using preformed elements using patches sealing on the surface of the article
  • B60C 11/02 - Replaceable treads

91.

GOLF BALL

      
Application Number 18966441
Status Pending
Filing Date 2024-12-03
First Publication Date 2025-06-12
Owner Bridgestone Sports Co., Ltd. (Japan)
Inventor
  • Kuwahara, Masanobu
  • Shinohara, Hirotaka
  • Mizutani, Daichi

Abstract

A golf ball includes at least one intermediate layer formed between a core and a cover, wherein a standard deviation of a specific gravity of each layer of the core, the intermediate layer, the cover is within 0.07, and the cover is formed of a resin composition that includes the following components (I) and (II): (I) polyurethane (II) (meth)acrylic block copolymer, and the cover satisfies the following condition (1): A golf ball includes at least one intermediate layer formed between a core and a cover, wherein a standard deviation of a specific gravity of each layer of the core, the intermediate layer, the cover is within 0.07, and the cover is formed of a resin composition that includes the following components (I) and (II): (I) polyurethane (II) (meth)acrylic block copolymer, and the cover satisfies the following condition (1): 0.1 ≤ VR L × V ⁢ R H ≤ 0 . 2 ⁢ 6 ( 1 ) A golf ball includes at least one intermediate layer formed between a core and a cover, wherein a standard deviation of a specific gravity of each layer of the core, the intermediate layer, the cover is within 0.07, and the cover is formed of a resin composition that includes the following components (I) and (II): (I) polyurethane (II) (meth)acrylic block copolymer, and the cover satisfies the following condition (1): 0.1 ≤ VR L × V ⁢ R H ≤ 0 . 2 ⁢ 6 ( 1 ) [in the above condition, VRL represents a viscosity at 210° C. and a viscosity at 200° C. at a predetermined shear rate, and VRH represents a ratio between a viscosity η3 at 230° C. and a viscosity at 220° C. at the predetermined shear rate].

IPC Classes  ?

92.

TREAD RUBBER COMPOSITION AND TIRE

      
Application Number JP2024041024
Publication Number 2025/121129
Status In Force
Filing Date 2024-11-19
Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Mito Kei

Abstract

The purpose is to provide a tread rubber composition that has exceptional abrasion resistance and puncture resistance without compromising other physical properties. In order to solve the problem, the present invention is a rubber composition containing a rubber component, carbon black, silica, and a resin, wherein the rubber component contains a high-purity natural rubber having a nitrogen content of 0.3 mass% or less, the resin has a softening point of 130°C or higher and the content thereof is 1 mass part or more per 100 mass parts of the rubber component, and the total content of the carbon black and the silica is 50 mass parts or more per 100 mass parts of the rubber component.

IPC Classes  ?

  • C08L 7/00 - Compositions of natural rubber
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 3/04 - Carbon
  • C08K 3/36 - Silica
  • C08L 101/00 - Compositions of unspecified macromolecular compounds

93.

TREAD RUBBER COMPOSITION AND TIRE

      
Application Number JP2024041027
Publication Number 2025/121130
Status In Force
Filing Date 2024-11-19
Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Mito Kei
  • Maeda Ryosuke

Abstract

22SA) of 135 m2/g or larger, and the content of the aging inhibitor is 0.4 part by mass or higher per 100 parts by mass of the rubber component.

IPC Classes  ?

  • C08L 7/00 - Compositions of natural rubber
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 3/04 - Carbon
  • C08K 3/36 - Silica

94.

HEAVY-DUTY TIRE

      
Application Number JP2024022899
Publication Number 2025/120885
Status In Force
Filing Date 2024-06-24
Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Miyazono Toshiya

Abstract

In a heavy-duty tire according to the present invention, a tread part is provided with a belt composed of one or more belt layers, and one or more belt reinforcement layers disposed on the outer side of the belt in the tire radial direction. The belt reinforcement layer is formed by coating reinforcement cords with rubber. Each of the reinforcement cords extends from one end to the other end of the belt reinforcement layer and is cut at the one end and the other end. Each of the reinforcement cords is furthermore divided at one or more locations between the one end and the other end. The number of inserted reinforcement cords is greater than the number of inserted belt cords in the belt.

IPC Classes  ?

  • B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
  • B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers

95.

HEAVY-DUTY TIRE

      
Application Number JP2024022900
Publication Number 2025/120886
Status In Force
Filing Date 2024-06-24
Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Miyazono Toshiya

Abstract

In a heavy-duty tire according to the present invention, a tread part is provided with a belt composed of one or more belt layers, and one or more belt reinforcement layers disposed on the outer side of the belt in the tire radial direction. The belt reinforcement layer is formed by coating reinforcement cords with rubber. Each of the reinforcement cords extends from one end to the other end of the belt reinforcement layer and is cut at the one end and the other end. Each of the reinforcement cords is furthermore divided at one or more locations between the one end and the other end. The division positions of the reinforcement cords are positioned on the same straight line across the plurality of reinforcement cords.

IPC Classes  ?

  • B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers

96.

FLUID PRESSURE ACTUATOR AND METHOD FOR MANUFACTURING FLUID PRESSURE ACTUATOR

      
Application Number JP2024025147
Publication Number 2025/120894
Status In Force
Filing Date 2024-07-11
Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Oono, Shingo

Abstract

This fluid pressure actuator 20 comprises: a tube 24 pair including a pair of parallel-aligned tubes 24 that expand and contract according to the pressure of a fluid; a sealing member 30 in which is formed an insertion portion 50 pair including a pair of insertion portions 50 into which the ends of the tubes 24 in the axial direction X are respectively inserted to seal the end of each of the tubes 24; a crimping member 36 that secures the tube 24 pair to the insertion portion 50 pair from the outer side of a sleeve 26; and a filler material 60 that is disposed in a recessed space 70 around the outer circumference of the insertion portion 50 pair across the facing portions, as viewed from the axial direction X, to contact the tube 24 pair and the sleeve 26 and fill the gap.

IPC Classes  ?

  • F15B 15/10 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type

97.

PNEUMATIC RADIAL TIRE FOR PASSENGER VEHICLES

      
Application Number 18708207
Status Pending
Filing Date 2022-06-23
First Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kuwayama, Isao
  • Hatanaka, Shintaro

Abstract

A pneumatic radial tire for passenger vehicles that satisfies a defined relationship between sectional width SW and outer diameter OD of the tire, and includes only two circumferential main grooves extending in a tire circumferential direction on a tread contact surface, a barycenter of the circumferential main grooves being positioned in a half portion of the tire on a vehicle-mounted outward side, which is one side of the tire in a tread width direction with a tire equatorial plane as a boundary. A drop height (or ground contact length relationship, or tread gauge relationship) is also defined.

IPC Classes  ?

  • B60C 11/03 - Tread patterns
  • B60C 3/04 - Tyres characterised by transverse section characterised by the relative dimensions of the section, e.g. low profile
  • B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes

98.

PNEUMATIC TIRE AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2024025160
Publication Number 2025/120895
Status In Force
Filing Date 2024-07-11
Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Kaita Shojiro
  • Yamaguchi Ken
  • Kaga Norihiko
  • Takeshige Makiko
  • Takano Shigenaga
  • Yamada Hiroshi
  • Hashiguchi Makoto
  • Shoda Yasuhiro

Abstract

Provided is a pneumatic tire in which a resin layer is firmly adhered to an outer surface. This pneumatic tire includes the resin layer on at least a part of the outer surface thereof, and is characterized in that the resin layer is disposed via an adhesive layer containing a copolymer having a conjugated diene unit and a non-conjugated olefin unit.

IPC Classes  ?

  • B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
  • B29D 30/06 - Pneumatic tyres or parts thereof
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof
  • C08F 210/02 - Ethene
  • C08F 236/04 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated

99.

TIRE

      
Application Number JP2024032426
Publication Number 2025/120949
Status In Force
Filing Date 2024-09-10
Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor
  • Oshima Naoya
  • Amakawa Mai

Abstract

CBCBB), is 0.50 or more.

IPC Classes  ?

  • B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
  • B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
  • C08K 3/04 - Carbon
  • C08K 3/36 - Silica
  • C08K 5/548 - Silicon-containing compounds containing sulfur
  • C08L 9/06 - Copolymers with styrene
  • C08L 15/00 - Compositions of rubber derivatives

100.

TIRE MOLDING DRUM

      
Application Number JP2024039304
Publication Number 2025/121053
Status In Force
Filing Date 2024-11-05
Publication Date 2025-06-12
Owner BRIDGESTONE CORPORATION (Japan)
Inventor Iyanagi Satoshi

Abstract

A tire molding drum according to the present disclosure comprises a plurality of segments that are disposed in the drum circumferential direction and form a drum outer peripheral surface where an outer surface in the drum radial direction can support a tire material. The plurality of segments include a partially expanding/contracting segment capable of forming a retreat surface in a portion of the drum outer peripheral surface in the drum circumferential direction by retreating inward in the drum radial direction with respect to an adjacent segment that is adjacent in the drum circumferential direction. The partially expanding/contracting segment includes: a mobile body that is movable in the drum radial direction; and a swing flap that is disposed so as to span the mobile body and the adjacent segment in the drum circumferential direction, and is pivotally supported by the adjacent segment so as to swing in the drum radial direction in conjunction with the movement of the mobile body in the drum radial direction.

IPC Classes  ?

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