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公开(公告)号：US12214627B2
公开(公告)日：2025-02-04
申请号：US17276395
申请日：2019-09-11
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Takashi Hoshiba , Tatsuro Shinzawa , Atsuhito Nakano
Abstract: A pneumatic tire includes, on a surface of a side rubber provided on sidewall portions, a two-dimensional code in which a dot pattern is formed by two types of gray scale elements distinguishable from each other by irregularities on the surface. Dot holes are formed in the two-dimensional code, corresponding to dark elements of the gray scale elements. The side rubber is a diene rubber including butadiene rubber, and when A is a blended amount of the butadiene rubber relative to 100 parts by mass of the diene rubber contained in the side rubber and when B is a blended amount of carbon, a ratio A/B and a hole depth D (mm) from an opening of the dot hole to a hole bottom satisfies a relationship of 1.1≤(A/B)/D≤6.0.
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公开(公告)号：US20250018750A1
公开(公告)日：2025-01-16
申请号：US18710181
申请日：2022-05-16
Applicant: BRIDGESTONE CORPORATION
Inventor： Takatoshi ONO
Abstract: The tire 1 is a tire, including a side rubber 8, a bead filler 4b, a carcass 5 having a carcass ply 5a including a carcass cord 5c, and a communication device 10, in which the communication device includes a RF tag 10e and a tag coating rubber portion 10f coating the RF tag, the communication device is disposed between the side rubber and the bead filler, a 100% modulus M100 of the side rubber is lower than a 100% modulus M100 of the tag coating rubber portion, the 100% modulus M100 of the tag coating rubber portion is lower than a 100% modulus M100 of a contacting bead filler portion of the bead filler in contact with the communication device, and a dynamic storage modulus E′ of the side rubber is lower than a dynamic storage modulus E′ of the contacting bead filler portion.
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公开(公告)号：US12172473B2
公开(公告)日：2024-12-24
申请号：US17598017
申请日：2020-05-20
Applicant: BRIDGESTONE CORPORATION
Inventor： Shiho Kamada
IPC: B60C13/00
Abstract: In a tire, first and second ridge parts extending in a tire radial direction each have a central portion in the tire radial direction located on an inner side in the tire radial direction with respect to a central portion of the first ridge part in the tire radial direction are provided on an outer surface of a side wall part. A decorative area provided in an outer surface of the side wall part includes a dense area in which the first ridge part and the second ridge part face each other in the tire circumferential direction, and a sparse area in which either the first ridge parts or the second ridge parts face each other in the tire circumferential direction without interposing the other therebetween.
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公开(公告)号：US20240416684A1
公开(公告)日：2024-12-19
申请号：US18706835
申请日：2022-06-22
Applicant: BRIDGESTONE CORPORATION
Inventor： Shin SUKEGAWA , Hironori HOSHINO , Hirotomo MORI
Abstract: A tire according to the present disclosure includes a tire body and a covered communication device at least a part of which is embedded in the tire body. The covered communication device includes a communication device and a covering body that covers the periphery of the communication device. The covering body includes a distinction portion that is distinguishable from a portion located around the covering body, of the tire body, in a cross-sectional view in a plane passing through the covered communication device.
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公开(公告)号：US20240399798A1
公开(公告)日：2024-12-05
申请号：US18699591
申请日：2022-06-23
Applicant: BRIDGESTONE CORPORATION
Inventor： Kazuma SAITO , Atsushi KITAHARA
IPC: B60C13/00
Abstract: In a pneumatic tire of this disclosure, in the reference condition, thickness of a sidewall portion in a tire radial region between positions each spaced apart, from a tire maximum width position, by 15% of tire cross-sectional height to inner side and outer side in the tire radial direction is 1.0 to 4 mm thicker than thickness of the thinnest part of the sidewall portion.
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Patent Agency Ranking
公开(公告)号：US12115818B2
公开(公告)日：2024-10-15
申请号：US16448134
申请日：2019-06-21
Applicant: Bridgestone Americas Tire Operations, LLC
Inventor： Hans Robert Dorfi , Sharon Elaine Reinhardt , Robert Wayne Asper
CPC classification number: B60C11/0302 , B60C5/00 , B60C9/02 , B60C11/0304 , B60C11/1218 , B60C11/124 , B60C11/1392 , B60C13/001 , B60C19/001 , B60C11/12 , B60C2011/1295 , Y10T29/49496
Abstract: A method of mounting a tire on a vehicle includes providing a tire having a first side, a second side, and a circumferential tread disposed about the tire. The first side defines a first forward rotation direction that is a rotation of the tire in a counterclockwise direction when the tire is mounted on a vehicle in a first orientation and viewed from the first side. The second side defines a second forward rotation direction of the tire that is a rotation of the tire in the counterclockwise direction when the tire is mounted on the vehicle in a second orientation opposite the first orientation and viewed from the first side. The circumferential tread includes a plurality of tread elements. At least one of the tread elements includes a sipe arrangement that causes the tire to exhibit a first tire performance when the tire is mounted on the vehicle in the first orientation and rotated in the first forward rotation direction. The sipe arrangement causes the tire to exhibit a second tire performance that is different from the first tire performance when the tire is mounted on the vehicle in the second orientation and rotated in the second forward rotation direction. The method further includes mounting the tire on the vehicle in the first orientation for driving the vehicle in a first set of conditions, and mounting the tire on the vehicle in the second orientation for driving the vehicle in a second set of conditions.
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公开(公告)号：US20240293986A1
公开(公告)日：2024-09-05
申请号：US18629554
申请日：2024-04-08
Applicant: Pirelli Tyre S.p.A.
Inventor： Angelo MAZZUCATO , Alfredo BALINI
CPC classification number: B29D30/72 , B29D30/0606 , B60C13/001 , B29D2030/0612 , B29D2030/0616 , B29D2030/726
Abstract: An insert for a mould for vulcanising tyres for vehicle wheels, the insert arranged to receive in a seat formed on a moulding surface of the mould and comprising a base surface from which a plurality of projections extends; wherein, each projection comprises a lateral surface extending away from the base surface such that the lateral surface defines a tapered profile of the projection away from the base surface, is inclined at an angle between 10° and 25° with respect to a direction perpendicular to the base surface, and has a roughness between 4 and 11 μm.
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公开(公告)号：US12070974B2
公开(公告)日：2024-08-27
申请号：US17822256
申请日：2022-08-25
Applicant: PIRELLI TYRE S.P.A.
Inventor： Piero Losi
CPC classification number: B60C3/06 , B29D30/0601 , B29D30/08 , B60C11/0332 , B60C13/00 , B60C19/001 , Y10T29/49494
Abstract: Method for controlling the symmetry of the footprint area of a tyre miming on a straight trajectory with camber angle different from zero, wherein the method comprises the steps: —reducing the contact pressure of the tyre (2) on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); —disposing any medium line (Im) of the tread band (9) placed in correspondence with the footprint area substantially parallel to the ground; the invention also defines a tyre and a wheel for motor-vehicles, wherein the medium line (Im) of the tread hand (9) and the rotation axis (X-X) of the tyre (2) form an angle (a) substantially equal in absolute value to the camber angle (β); the invention also encompasses a process for manufacturing such tyres, wherein a green tyre with symmetric outer profile is deformed during the vulcanising and moulding step until a predetermined angle (a) different from zero is formed between any medium line (Im) of the tread band (9) and the rotation axis (X-X) of the vulcanised tyre (2).
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公开(公告)号：US20240262136A1
公开(公告)日：2024-08-08
申请号：US18563210
申请日：2021-11-02
Applicant: BRIDGESTONE CORPORATION
Inventor： Takashi SHIMURA
CPC classification number: B60C13/001 , B60C19/00
Abstract: A tire 1 includes a communication device 10 embedded within a tire side portion 1d, a decorative portion 14 formed on a tire outer surface Ids of the tire side portion and having a base surface 30, and one or more patterned regions K disposed in the decorative portion. In each patterned region, protrusions Q that protrude with a protrusion height of 0.1 mm or greater and 1.0 mm or less from the base surface of the decorative portion are formed in plural with a spacing of 0.1 mm or greater and 3.0 mm or less. The communication device is wholly positioned within the decorative portion in a plane projected in a tire width direction of the tire side portion.
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公开(公告)号：US12049111B2
公开(公告)日：2024-07-30
申请号：US17543784
申请日：2021-12-07
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Hiroki Mizokawa
CPC classification number: B60C13/001 , B60C1/0025 , B60C13/02 , B60C2013/045
Abstract: A pneumatic tire can include a tread portion, a pair of sidewall portions, a pair of bead portions, and a carcass. At least one of the sidewall portions can include a first sidewall rubber. The first sidewall rubber can include a base rubber layer, a different color rubber layer, and a barrier rubber layer. The base rubber layer can be in contact with the carcass. At least a part of the different color rubber layer can be exposed in the outer surface of the at least one of the sidewall portions. The barrier rubber layer can be arranged between the different color rubber layer and the base rubber layer. The barrier rubber layer can have a rubber compounding to suppress migration of rubber compounding agents on the base rubber layer side to the different color rubber layer. The barrier rubber layer can have a thickness of 1.0 mm or less.
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