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1. 发明申请

US20150290978A1 PNEUMATIC TIRE 有权
标题翻译：气动轮胎
公开(公告)号：US20150290978A1
公开(公告)日：2015-10-15
申请号：US14441545
申请日：2013-10-25
申请人： BRIDGESTONE CORPORATION
发明人： Hiroyuki Katsuno , Satoshi Ishikawa , Shinsaku Katayama , Eisuke Seta , Yoshio Kaji , Takayuki Kurata
IPC分类号： B60C11/11 , B60C11/04 , B60C5/00 , B60C11/13
CPC分类号： B60C11/11 , B60C5/00 , B60C11/0302 , B60C11/04 , B60C11/1236 , B60C11/13 , B60C11/1369 , B60C11/1384 , B60C2011/0344 , B60C2011/0346 , B60C2011/1213
摘要： A pneumatic tire, comprising: a tread surface; a plurality of grooves formed in the tread surface, including a plurality of widthwise grooves each extending from a corresponding tread end on the inner side in the tread width direction and a plurality of circumferential grooves each extending in the tread circumferential direction to intersect the widthwise grooves; blocks demarcated by the plurality of grooves; and a chamfered portion formed at a corner, on the trailing edge side and on the outer side in the tread width direction, of each block.
摘要翻译：一种充气轮胎，包括：胎面表面; 形成在所述胎面表面上的多个槽，包括从胎面宽度方向的内侧的相应的胎面端部延伸的多个宽度方向槽，以及在胎面周向上延伸的多个周向槽， ; 由多个槽划分的块; 以及形成在每个块的角落，后缘侧和胎面宽度方向的外侧的倒角部。

2. 外观设计

USD931189S1 Tire tread 有权
公开(公告)号：USD931189S1
公开(公告)日：2021-09-21
申请号：US29724994
申请日：2020-02-21
申请人： BRIDGESTONE CORPORATION
设计人： Kohei Sahashi , Takayuki Kurata , Naoyuki Sone

3. 外观设计

USD931190S1 Tire tread 有权
公开(公告)号：USD931190S1
公开(公告)日：2021-09-21
申请号：US29724995
申请日：2020-02-21
申请人： BRIDGESTONE CORPORATION
设计人： Kohei Sahashi , Takayuki Kurata , Naoyuki Sone

4. 发明授权

US10987976B2 Pneumatic tire 有权
公开(公告)号：US10987976B2
公开(公告)日：2021-04-27
申请号：US15577770
申请日：2016-04-19
申请人： BRIDGESTONE CORPORATION
发明人： Takayuki Kurata , Shinsaku Katayama , Masakazu Amano
IPC分类号： B60C11/13 , B60C11/12 , B60C11/03 , B60C11/00 , B60C11/11 , B60C3/04
摘要： By forming a ground contact edge side of lug grooves such that the groove depth becomes shallower in groove depth from the tire equatorial plane side toward the ground contact edge, and by setting an average angle of inclination formed between a tread face and a groove bottom to be not more than 5°, water expulsion is performed smoothly in the vicinity of the ground contact edge while securing the rigidity of land portions in the vicinity of the ground contact edge. This enables a high degree of both wet performance and dry performance to be achieved.

5. 外观设计

USD956663S1 Tire tread 有权
公开(公告)号：USD956663S1
公开(公告)日：2022-07-05
申请号：US29715366
申请日：2019-12-02
申请人： BRIDGESTONE CORPORATION
设计人： Kohei Sahashi , Takayuki Kurata , Naoyuki Sone

6. 发明授权

US10245889B2 Pneumatic tire having lug grooves forming a direction tread pattern 有权
公开(公告)号：US10245889B2
公开(公告)日：2019-04-02
申请号：US14648304
申请日：2013-11-28
申请人： BRIDGESTONE CORPORATION
发明人： Shinsaku Katayama , Eisuke Seta , Yoshio Kaji , Masafumi Koide , Takayuki Kurata , Hiroyuki Katsuno , Masakazu Amano , Ataka Takei
IPC分类号： B60C11/03 , B60C11/13 , B60C11/12 , B60C5/00
摘要： A pneumatic tire (10), which has, in the surface of the tread (11), lug grooves (15) on one side extending from one axial edge towards the axial center of the tire in such a manner as to intersect with the circumferential direction of the tire and lug grooves (15) on the other side extending in a symmetrically opposite direction from the axial center towards the other axial edge of the tire, has at least one circumferential groove (12) extending circumferentially around the tire. Also, circumferential grooves (12, 13a, 13b) are so formed as to satisfy a relationship of “1≤(S/L)≤3” where L is the axial length of the central region, which is the region enclosed by two straight parallel lines each passing through the center between the contact width center (CL) and the contact edge with the shoulder regions being the regions axially outside of the parallel lines, and S is the total of the groove areas of the circumferential grooves (12, 13a, 13b) disposed in the central region. Therefore, the pneumatic tire (10) not only secures the steering stability performance on wet road surfaces, but also improves the steering stability and wear resistance performance on dry road surfaces.

7. 外观设计

USD956664S1 Tire tread 有权
公开(公告)号：USD956664S1
公开(公告)日：2022-07-05
申请号：US29715371
申请日：2019-12-02
申请人： BRIDGESTONE CORPORATION
设计人： Kohei Sahashi , Takayuki Kurata , Naoyuki Sone

8. 外观设计

USD956662S1 Tire tread 有权
公开(公告)号：USD956662S1
公开(公告)日：2022-07-05
申请号：US29715363
申请日：2019-12-02
申请人： BRIDGESTONE CORPORATION
设计人： Kohei Sahashi , Takayuki Kurata , Naoyuki Sone

9. 发明授权

US10960711B2 Pneumatic tire 有权
公开(公告)号：US10960711B2
公开(公告)日：2021-03-30
申请号：US15577769
申请日：2016-04-19
申请人： BRIDGESTONE CORPORATION
发明人： Takayuki Kurata
IPC分类号： B60C11/13 , B60C11/12 , B60C11/03
摘要： Taking a groove side-wall to a position at ½ a groove depth from a tread face of lug groove as a tread-in side first inclined portion, and taking a groove side-wall from the position at ½ groove depth to a groove bottom as a tread-in side second inclined portion, then the following A1 is set less than the following B1. When viewed in cross-section orthogonal to a length direction of the lug groove: A1 is an area of a region enclosed by an imaginary line passing through an end portion on a tread face side of the tread-in side first inclined portion and perpendicular to the tread face, by an imaginary line passing through an end portion on a groove bottom side of the tread-in side first inclined portion and orthogonal to the imaginary line, and by the tread-in side first inclined portion; and B1 is an area of a region enclosed by an imaginary line passing through an end portion on a tread face side of the tread-in side second inclined portion and perpendicular to the tread face, by an imaginary line passing through the deepest portion of the lug groove and parallel to the tread face, and by the tread-in side second inclined portion.

10. 发明授权

US10507696B2 Pneumatic tire 有权
公开(公告)号：US10507696B2
公开(公告)日：2019-12-17
申请号：US14435536
申请日：2013-10-23
申请人： BRIDGESTONE CORPORATION
发明人： Yoshio Kaji , Shinsaku Katayama , Eisuke Seta , Takayuki Kurata
IPC分类号： B60C11/12
摘要： A pneumatic tire, having a plurality of sipes formed in land portions of a tread thereof so as to each extend in the tire width direction, characterized in that: in a cross section of the land portion orthogonal to the sipe extending direction, provided that an imaginary sipe main line links two ends in the tire radial direction of each sipe, at least two of the sipes are “inclined sipes” each having the sipe main line inclined with respect to the tire radial direction; each inclined sipe has inner bent portions each protruding with respect to the sipe main line with peaks positioned deeper than 20% of the sipe depth; and the sipe main line(s) of at least one of the inclined sipes are inclined in a direction opposite, with respect to the tire radial direction, to the sipe main line of any of the other inclined sipes.

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