Patents Examined by Adrienne C. Johnstone
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Patent number: 11535067Abstract: A pneumatic tire includes: a bead core; a bead filler; a carcass ply; a side wall rubber that is arranged on the tire-outer-surface-side of the carcass ply and constitutes a tire outer surface; a chafer layer that is turned from the tire-inner-surface-side to the tire-outer-surface-side around the bead core and the bead filler and rolled up on an outer surface of the carcass ply; a pair of a tape rubber and a rear pad rubber that are located between the side wall rubber and the carcass ply and arranged so as to hold a rolled-up end of the chafer layer from both sides in a tire width direction; and a tread rubber, in which modulus values of the pair of the tape rubber and the rear pad rubber are higher than a modulus value of the side wall rubber, and the tread rubber contains silica.Type: GrantFiled: December 11, 2018Date of Patent: December 27, 2022Assignee: TOYO TIRE CORPORATIONInventor: Haruka Kubo
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Patent number: 11529830Abstract: A tire has a rim protector which is formed at a sidewall and which constitutes an annular protrusion that extends in a tire circumferential direction. The rim protector has not less than two recesses that extend toward the tread region from a location toward the bead region in such fashion as to be directed toward a location in a second direction from a location in a first direction in the tire circumferential direction, the not less than two recesses being arranged with spaces therebetween in the tire circumferential direction. A mutually adjacent pair of recesses among the not less than two recesses are in a positional relationship such that they partially overlap as seen when projected onto a virtual plane perpendicular to a tire radial direction.Type: GrantFiled: December 5, 2019Date of Patent: December 20, 2022Assignee: TOYO TIRE CORPORATIONInventors: Shingo Kuwano, Toshikazu Yasunaga
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Patent number: 11491826Abstract: A tire has a rim protector which is formed at a sidewall and which constitutes an annular protrusion that extends in a tire circumferential direction. The rim protector has not less than two recesses that extend toward the tread region from a location toward the bead region in such fashion as to be directed toward a location in a second direction from a location in a first direction in the tire circumferential direction, the not less than two recesses being arranged with spaces therebetween in the tire circumferential direction. A mutually adjacent pair of recesses among the not less than two recesses are in a positional relationship such that they partially overlap as seen when projected onto a virtual plane perpendicular to a tire radial direction.Type: GrantFiled: December 5, 2019Date of Patent: November 8, 2022Assignee: TOYO TIRE CORPORATIONInventors: Shingo Kuwano, Toshikazu Yasunaga
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Patent number: 11458769Abstract: Provided is a pneumatic tire having at least one carcass layer as a skeleton extending in toroidal shape over a pair of bead portions, at least one belt layer and a tread disposed on an outer side in the radial direction of a crown portion of the carcass. In a tire section in the widthwise direction in state where the tire is assembled to an application rim, ratio BD/BW of radius difference BD between radius at a center portion and radius at an end portion in the widthwise direction of an innermost layer of the belt layer, to width BW of the innermost layer, ranges from 0.01 to 0.04, and ratio TD/TW of radius difference TD between radius at a center portion and radius at an end portion of the tread in the widthwise direction of a tread ground surface, to tread ground-contact width TW, satisfies BD/BW<TD/TW.Type: GrantFiled: April 22, 2019Date of Patent: October 4, 2022Assignee: BRIDGESTONE CORPORATIONInventor: Shinsaku Katayama
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Patent number: 11453255Abstract: The pneumatic tire includes: a belt layer, a belt reinforcing layer, a tread portion, sidewall portions, a rim cushion rubber, and an electrically conductive rubber disposed in the rim cushion rubber and includes a first end in contact with a rim and exposed on an outer surface of the rim cushion rubber and a second end in contact with a tire component adjacent to the rim cushion rubber. The electrical resistance value of the electrically conductive rubber and a portion of the tread portion is 1×106 ?·cm or less. The electrical resistance value of the tire component, a coating rubber of the belt layer, and a coating rubber of the belt reinforcing layer is from 1×106 ?·cm to 1×108 ?·cm. The electrical resistance value of the rim cushion rubber and a side rubber of the sidewall portions is 1×108 ?·cm or greater.Type: GrantFiled: August 28, 2015Date of Patent: September 27, 2022Assignee: The Yokohama Rubber Co., LTD.Inventor: Isamu Kishizoe
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Patent number: 11427037Abstract: A tire has a rim protector which is formed at a sidewall and which constitutes an annular protrusion that extends in a tire circumferential direction. The rim protector has not less than two recesses that extend toward the tread region from a location toward the bead region in such fashion as to be directed toward a location in a second direction from a location in a first direction in the tire circumferential direction, the not less than two recesses being arranged with spaces therebetween in the tire circumferential direction. A mutually adjacent pair of recesses among the not less than two recesses are in a positional relationship such that they partially overlap as seen when projected onto a virtual plane perpendicular to a tire radial direction.Type: GrantFiled: December 5, 2019Date of Patent: August 30, 2022Assignee: TOYO TIRE CORPORATIONInventors: Shingo Kuwano, Toshikazu Yasunaga
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Patent number: 11383560Abstract: A tire for a two-wheeled automotive vehicle includes a carcass that is extended on and between one of beads and the other of the beads along inner sides of a tread and sidewalls. The carcass includes a first ply and a second ply that is layered outward of the first ply. The first ply is turned up around the beads from an inner side toward an outer side in an axial direction. By the turning-up, the first ply includes a main portion and turned-up portions. The second ply is turned back around the beads from the outer side toward the inner side in the axial direction. By the turning-back, the second ply includes a main portion and turned-back portions.Type: GrantFiled: August 4, 2015Date of Patent: July 12, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventor: Junichiro Morozumi
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Patent number: 11331961Abstract: A pneumatic tire includes a pair of bead cores; a pair of bead fillers that are connected to the pair of bead cores; a carcass ply that is suspended between the pair of bead cores; a side wall rubber that is arranged on a tire-outer-surface-side of the carcass ply and constitutes a tire outer surface; a chafer layer that is turned from a tire-inner-surface-side to the tire-outer-surface-side around the bead cores and the bead fillers and rolled up on an outer surface of the carcass ply; and a pair of support rubbers that are located between the side wall rubber and the carcass ply and arranged so as to hold a rolled-up end of the chafer layer from both sides in a tire width direction. A modulus values of the pair of support rubbers are higher than a modulus value of the side wall rubber.Type: GrantFiled: December 11, 2018Date of Patent: May 17, 2022Assignee: TOYO TIRE CORPORATIONInventor: Tatsuya Yamamoto
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Patent number: 11325429Abstract: A tire has a tire center in the tire width direction. An intersection point of a carcass outer surface with a parallel line extending parallel with a rotation axis and passing through a tire maximum width position is denoted as P1. An intersection point of the parallel line LP with a side surface is denoted as P2. An intersection point of the parallel line with a protrusion portion outer surface of a protrusion portion is denoted as P3. A distance between the tire center and the intersection point P1 is denoted as W1. A distance between the tire center and the intersection point P3 is denoted as W3. A distance between the intersection point P1 and the intersection point P2 is denoted as G1. A distance between the intersection point P2 and the intersection point P3 is denoted as G2. 0.80?W1/W3?0.95 and 0.1?G1/G2?1.Type: GrantFiled: July 11, 2016Date of Patent: May 10, 2022Assignee: The Yokohama Rubber Co., LTD.Inventor: Masatoshi Kuriyama
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Patent number: 11318797Abstract: A pneumatic tire includes a pair of bead cores; a pair of bead fillers; a carcass ply; a side wall rubber; a chafer layer that is rolled up on an outer surface of the carcass ply; and a pair of support rubbers that is located between the side wall rubber and the carcass ply and arranged such that a rolled-up end of the chafer layer is sandwiched from both sides in a tire width direction. The pair of support rubbers includes a tape rubber located inside in the tire width direction and a rear pad rubber located outside in the tire width direction. A modulus value of the tape rubber is higher than a modulus value of the side wall rubber. A modulus value of the rear pad rubber is higher than the modulus value of the tape rubber.Type: GrantFiled: December 11, 2018Date of Patent: May 3, 2022Assignee: TOYO TIRE CORPORATIONInventor: Kunihiko Nagai
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Patent number: 11305583Abstract: A pneumatic tire comprises a carcass layer, a belt layer disposed on an outer side of the carcass layer in a tire radial direction, and a tread rubber disposed on the outer side of the belt layer in the tire radial direction. The belt layer formed by laminating an angle belt having a belt angle ?45° and ?70° in absolute values, a pair of cross belts, having belt angles of ?10° and ?45° in absolute values and having belt angles of mutually opposite signs, and a circumferential reinforcing layer having a belt angle within a range of ±5° with respect to a tire circumferential direction. A tread width TW and a cross-sectional width Wca of the carcass layer have a relationship such that 0.82?TW/Wca?0.92. A width Ws of the circumferential reinforcing layer and a cross-sectional width Wca of the carcass layer such that 0.60?Ws/Wca?0.70.Type: GrantFiled: October 17, 2017Date of Patent: April 19, 2022Inventor: Hideki Hamanaka
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Patent number: 11198333Abstract: In a tire 2, each of sidewalls 6 includes a first layer 36 disposed axially outward of a corresponding one of beads 8, and a second layer 38 extending outward from the first layer 36 in a radial direction. When Pc represents a position of an axially outer end of an interface between a carcass 10 and the sidewall 6, an outer end 40 of the first layer 36 is disposed radially inward of the position Pc. A hardness H1 of the first layer 36 is greater than a hardness H2 of the second layer 38. A ratio (H2/H1) of the hardness H2 to the hardness H1 is preferably not less than 0.70 and preferably not greater than 0.95.Type: GrantFiled: December 19, 2017Date of Patent: December 14, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventor: Masafumi Otani
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Patent number: 11173754Abstract: A pneumatic tire is provided including a plurality of protrusions and a plurality of recesses of at least one tire side portion. A region including the recesses is provided in the outermost side in a tire radial direction. The protrusions are formed as convexities having a longitudinal shape in a predetermined direction. A region including the protrusions is provided inward in the tire radial direction of the region including the recesses.Type: GrantFiled: May 10, 2017Date of Patent: November 16, 2021Inventors: Hiroshi Fujii, Masatoshi Kuwajima, Masataka Koishi
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Patent number: 11173752Abstract: A tire made of rubber material includes a sidewall and a marking protruding from this sidewall. The tire has a texture, which has a plurality of strands protruding from the sidewall, these strands being distributed at a density at least equal to five strands per square millimeter (mm2), each strand having a mean cross section between 0.0007 mm2 and 0.06 mm2 and/or the texture having a plurality of substantially mutually parallel lamellae protruding from the sidewall, the spacing of the lamellae being less than or equal to 0.5 mm, each lamella having a mean width between 0.03 mm and 0.3 mm. The texture protrudes from the sidewall of the tire, and this texture surrounds all or part of the marking.Type: GrantFiled: June 19, 2014Date of Patent: November 16, 2021Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE, S.A.Inventors: Helene Emorine, Olivier Muhlhoff, Mathieu Vandaele
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Patent number: 11142027Abstract: A pneumatic tire 1 comprises a carcass 6 comprising a carcass ply (6A) comprising a main body portion (6a) and turned up portions (6b), and bead apex rubbers 8. Each of the bead apex rubbers 8 comprises a first rubber portion 10 and a second rubber portion 11 provided on an outer side in a tire axial direction of the first rubber portion and having smaller rubber hardness than the first rubber portion. A ratio H1/H2 of a height (H1) of an outer end (10e) in a tire radial direction of the first rubber portion 10 from a bead base line (BL) and a height (H2) of an outer end in the tire radial direction of each of the turned up portions (6b) from the bead base line (BL) is in a range of from 1.4 to 1.7.Type: GrantFiled: October 19, 2017Date of Patent: October 12, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventor: Hana Sato
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Patent number: 11130300Abstract: A pneumatic tire and a method for producing the pneumatic tire, wherein the pneumatic tire includes a generally string-shaped adhesive sealant, the sealant is continuously and spirally attached at least to the inner periphery of the tire that corresponds to a tread portion, the sealant has a wider portion on at least one of the longitudinal ends thereof, and the wider portion has a width larger than that of the longitudinally adjoining portion.Type: GrantFiled: October 16, 2015Date of Patent: September 28, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Naoki Yukawa, Satoshi Yamada, Mutsuki Sugimoto
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Patent number: 11090979Abstract: A tire of the “bias belted” type for a motorbike comprises: a tread (2) connected by two sidewalls (3) to two beads (4). A crown reinforcement (5) is radially on the inside of the tread (2) and comprises at least one crown layer (51, 52), such a crown layer (51, 52) comprising mutually parallel reinforcers. A carcass reinforcement (6) is radially on the inside of the crown reinforcement (5) and comprises at least two carcass layers (61, 62, 63), each comprising mutually parallel reinforcers, and crossed from one carcass layer to the next. The reinforcers of each crown layer (51, 52) form, with the circumferential direction (XX?), an angle between 15° and 25° in the equatorial plane (XZ), and the reinforcers of each carcass layer (61, 62, 63) form, with the circumferential direction (XX?), an angle between 40° and 50° in the equatorial plane (XZ).Type: GrantFiled: June 5, 2014Date of Patent: August 17, 2021Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventor: Christophe Laurent
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Patent number: 11077725Abstract: Provided is a pneumatic tire having sufficient sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed by applying a sealant to the inner periphery of a tire from which mold release agents have been removed.Type: GrantFiled: October 16, 2015Date of Patent: August 3, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Naoki Yukawa, Mutsuki Sugimoto, Satoshi Yamada
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Patent number: 11072209Abstract: A pneumatic tire includes a resonator attached to the inner periphery of the tire, the resonator including a tube with an opening, and a cavity connected to the tube. The pneumatic tire further includes s a tread portion and each resonator faces the tread portion, the tread portion includes at least one circumferential longitudinal groove, and the opening is provided to penetrate a circumferential longitudinal groove of the tread portion.Type: GrantFiled: October 16, 2015Date of Patent: July 27, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Naoki Yukawa, Mutsuki Sugimoto, Satoshi Yamada
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Patent number: 11059332Abstract: A foldable tire includes a tire main body provided at two edges thereof with two tire beads respectively. A plurality of rings are disposed in each of the tire beads. Each of the rings has a reinforcing core, which includes a plurality of flexible steel filaments helically entwined with each other and has a diameter ranging from 0.2 millimeters to 0.5 millimeters, and a cladding layer clothing the reinforcing core, so that the reinforcing cores located in each of the tire beads are separated from each other.Type: GrantFiled: July 21, 2016Date of Patent: July 13, 2021Assignee: INNOVA RUBBER CO., LTD.Inventor: Hsi-Ming Hsieh