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31. 发明申请

US20220227177A1 PNEUMATIC TIRE 有权
公开(公告)号：US20220227177A1
公开(公告)日：2022-07-21
申请号：US17596284
申请日：2019-12-12
申请人： BRIDGESTONE CORPORATION
发明人： Kazuki UEMURA
IPC分类号： B60C11/12 , B60C11/03 , B60C9/00 , B60C9/18
摘要： A pneumatic tire including a belt constituted by at least one belt layer on a tire radial-direction inner side of a tread portion. The belt layer includes a reinforcing element containing plural metal filaments aligned in a single row without being twisted together is embedded in an elastomer. The tread portion includes: two or more circumferential main grooves arranged within a width of a ground-contact surface; and land portions, and widthwise sipes are arranged in at least one of center land portion. The widthwise sipes each include: a linear portion linearly extending from the surface of the tread portion toward the tire radial-direction inner side; and a bent portion extending from the linear portion toward the tire radial-direction inner side, and the length of the linear portion increases from an extending length center portion of each widthwise sipe toward at least one of tread widthwise end portions.

32. 发明申请

US20220227174A1 TIRE 有权
公开(公告)号：US20220227174A1
公开(公告)日：2022-07-21
申请号：US17595844
申请日：2020-05-14
申请人： BRIDGESTONE CORPORATION
发明人： Yoshihide KOUNO
IPC分类号： B60C7/18 , B60B25/00
摘要： A tire includes a plurality of rim members disposed at different positions on a same axis, a plurality of body springs that connect between the respective plurality of rim members, and an interlink member that interlinks the adjacent body springs. Each of the plurality of body springs includes an elastic deformable portion, and latch portions that are provided at both ends of the elastic deformable portion and have a different shape from the elastic deformable portion. The latch portions are latched on the rim members.

33. 外观设计

USD958053S1 Motorcycle tire 有权
公开(公告)号：USD958053S1
公开(公告)日：2022-07-19
申请号：US29762507
申请日：2020-12-17
申请人： BRIDGESTONE CORPORATION
设计人： Norimasa Yamashita

34. 发明申请

US20220221024A1 LIQUID SEAL BUSHING 有权
公开(公告)号：US20220221024A1
公开(公告)日：2022-07-14
申请号：US17607916
申请日：2020-01-31
申请人： BRIDGESTONE CORPORATION
发明人： Kazutaka OTSU
IPC分类号： F16F13/28 , F16F13/14
摘要： A liquid seal bushing includes an outer member, an inner member, and an elastic body which connects the outer member and the inner member to each other. The bushing includes two liquid chambers, a connection path which connects the two liquid chambers and extends in one direction, a first communication path which allows communication between one end portion of both end portions of the connection path, the one end portion being located on a side of one liquid chamber of the two liquid chambers, and the other liquid chamber, a second communication path which allows communication between the other end portion of the both end portions of the connection path, and a linear motor provided inside the outer member including a movable element in the connection path and movable in the one direction to closes both openings of the first communication path and the second communication path.

35. 发明申请

US20220204741A1 RUBBER COMPOSITION, CROSSLINKED RUBBER PRODUCT OBTAINED FROM SAID RUBBER COMPOSITION, AND METHOD FOR PRODUCING SAID RUBBER COMPOSITION 有权
公开(公告)号：US20220204741A1
公开(公告)日：2022-06-30
申请号：US17606150
申请日：2020-04-22
申请人： BRIDGESTONE CORPORATION
发明人： Shigeki OISHI
IPC分类号： C08L23/16
摘要： The present invention relates to a rubber composition containing a rubber component, a eutectic compound, metal oxide, and a peroxide-based crosslinking agent, and a production method thereof. The rubber composition in which the blending amount of metal oxide such as zinc oxide is largely reduced is obtained, which may have the same vulcanization characteristics and vulcanized-rubber physical properties as those of a rubber composition in which a large amount of metal oxide is blended, while considering the environment.

36. 发明申请

US20220203782A1 Sidewall Supports For Pneumatic Tires 有权
公开(公告)号：US20220203782A1
公开(公告)日：2022-06-30
申请号：US17607322
申请日：2020-04-29
申请人： Bridgestone Corporation
发明人： Erin Sheepwash , Ryan J. Hue
IPC分类号： B60C17/00 , B60C5/14 , C08K5/19
摘要： A method of preparing a sidewall support, the method comprising the steps of (i) providing a vulcanizable composition including an elastomer, a filler, a curative, and a eutectic composition; (ii) fabricating the vulcanizable composition into a green sidewall support; and (iii) subjecting the green sidewall support to curing conditions.

37. 发明申请

US20220203772A1 COMPETITION WHEELCHAIR TIRE 有权
公开(公告)号：US20220203772A1
公开(公告)日：2022-06-30
申请号：US17594672
申请日：2019-12-10
申请人： BRIDGESTONE CORPORATION
发明人： Kohei SAHASHI
IPC分类号： B60C11/01 , B60C11/12
摘要： A tire includes a sipe, on a surface of a tread of a tire, extending across a tire equator from one side to another side of the tire equator. An end of the sipe on at least the one side is located at a tread edge or near the tread edge, and an inclination angle of the sipe relative to a width direction of the tread decreases from the tire equator towards the tread edge.

38. 发明申请

US20220194130A1 TIRE 有权
公开(公告)号：US20220194130A1
公开(公告)日：2022-06-23
申请号：US17595845
申请日：2020-05-14
申请人： BRIDGESTONE CORPORATION
发明人： Yoshihide KOUNO
IPC分类号： B60C7/18 , B60B9/06
摘要： A tire includes: a skeleton portion including a rim member, a plurality of body springs latched on the rim member, and a plurality of interlink springs interlaced with the body springs; and a tread member disposed at least on the outer periphery of the skeleton portion.

39. 发明申请

US20220185921A1 POLYISOPRENE, RUBBER COMPOSITION, AND TIRE 有权
公开(公告)号：US20220185921A1
公开(公告)日：2022-06-16
申请号：US17438644
申请日：2020-01-28
申请人： BRIDGESTONE CORPORATION
发明人： Shigenaga TAKANO , Aya HOTTA , Satoru TAMAKI
IPC分类号： C08F136/08 , B60C1/00
摘要： The present disclosure provides a polyisoprene wherein: a vinyl bond content of the polyisoprene is 30 mol % or higher; and a ratio of the weight-average absolute molecular weight (Mw′) determined by GPC-MALS with respect to the weight-average molecular weight (Mw) in terms of polystyrene determined by GPC, i.e., Mw′/Mw, is 0850 or less. A rubber composition containing the polyisoprene is excellent in the fuel-saving performance and grip performance on a wet road surface, as compared with a rubber composition containing the conventional polyisoprene.

40. 发明申请

US20220185023A1 TIRE 有权
公开(公告)号：US20220185023A1
公开(公告)日：2022-06-16
申请号：US17604646
申请日：2019-12-11
申请人： BRIDGESTONE CORPORATION
发明人： Mayuko KARASAWA
IPC分类号： B60C11/03 , B60C11/12
摘要： A tire including: at least three circumferential grooves; a first shoulder portion defined by a circumferential groove and a ground contact end on one side in a width direction; a second shoulder portion defined by a circumferential groove and a ground contact end on the other side in the width direction; a first land portion located between the circumferential groove defining the first shoulder portion and a circumferential groove adjacent to the circumferential groove defining the first shoulder portion; a second land portion located between the circumferential groove defining the second shoulder portion and the circumferential groove adjacent to the circumferential groove defining the second shoulder portion; recesses extending to the first shoulder portion and the first land portion across the circumferential groove defining the first shoulder portion; and recesses extending to the second shoulder portion and the second land portion across the circumferential groove defining the second shoulder portion.

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