Patents by Inventor Hideyuki Sakurai
Hideyuki Sakurai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180147887Abstract: A tire has a rolling resistance that is reduced at both low and high temperatures and that exhibits a small difference between low and high temperatures. The tire includes a tread portion and a pair of bead portions each with a bead core and a bead filler disposed on the radial outside of the bead core. Tread rubber forming the tread portion includes a rubber composition including a rubber component (A) and, per 100 parts by mass of the rubber component (A). 5 to 50 parts by mass of at least one kind of thermoplastic resin (B) selected from the group consisting of C5-based resins, C5- to C9-based resins, C9-based resins, terpene-based resins, terpene-aromatic compound-based resins, rosin-based resins, dicyclopentadiene resins, and alkylphenol-based resins, and 20 to 120 parts by mass of a filler (C) including silica. The dynamic storage modulus (E?) of the bead filler is 50 MPa or lower.Type: ApplicationFiled: June 2, 2016Publication date: May 31, 2018Applicant: BRIDGESTONE CORPORATIONInventor: Hideyuki SAKURAI
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Publication number: 20180111424Abstract: This disclosure aims to provide a tire having excellent braking performance on dry road surface and on wet road surface, and having excellent steering stability. This disclosure is a tire comprising a tread 10, wherein: the tread 10 has a plurality of circumferential grooves extending continuously in a tire circumferential direction C, the circumferential grooves including circumferential main grooves 21a, 21b, 22 with a cross-sectional area in a tire width direction W of 10 mm2 or more, and a groove width Lb at a 95% groove depth position with a groove depth of a groove bottom as 100% of at least the circumferential groove 21a located on an outermost side when mounted to a vehicle among the circumferential main grooves 21a, 21b, 22 being 25% to 60% with respect to a groove width Lt on a tread surface.Type: ApplicationFiled: March 30, 2016Publication date: April 26, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Tatsuya TOMIDA, Hideyuki SAKURAI
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Publication number: 20180111422Abstract: This disclosure aims to provide a tire having excellent braking performance on dry road surface and on wet road surface, and having excellent steering stability. This disclosure is a tire comprising a tread 10 formed by using a rubber composition of which a tan ? at 0° C. is 0.25 to 0.55, a difference between a tan ? at 30° C. and a tan ? at 60° C. is ?0.02 to 0.07, and a dynamic storage modulus at a dynamic strain of 1% and 0° C. is 4 MPa to 20 MPa, wherein: the tread 10 has circumferential grooves 20 extending in a tire circumferential direction C; a negative ratio in a footprint is 15% to 25%; a negative ratio derived from the circumferential grooves 20 is 8% to 14%; and a negative ratio derived from grooves other than the circumferential grooves is 7% to 11%.Type: ApplicationFiled: March 30, 2016Publication date: April 26, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Tatsuya TOMIDA, Hideyuki SAKURAI
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Patent number: 9908999Abstract: There is provided a rubber tire-tread composition comprising (A) a rubber component comprising 45% by mass or higher of one or more isoprene-based rubbers selected from the group consisting of natural rubbers and synthetic isoprene rubbers, and (B) one or more C5/C9-based petroleum resins selected from the group consisting of aromatic-modified aliphatic petroleum resins and aliphatic-modified aromatic petroleum resins in an amount of 5 to 50 parts by mass, and (C) a fatty acid metal salt in an amount of 0.5 to 10 parts by mass of, both based on 100 parts by mass of the rubber component.Type: GrantFiled: May 29, 2015Date of Patent: March 6, 2018Assignee: BRIDGESTONE CORPORATIONInventor: Hideyuki Sakurai
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Publication number: 20180022902Abstract: An object of the present invention is to enhance, in a rubber composition for tires comprising natural rubber as a principal component of a rubber component, a viscosity of the rubber composition in an unvulcanized state by providing the rubber composition with flexibility to improve workability of the rubber composition and improve a low loss tangent of the rubber composition after vulcanization while maintaining the performances both on snow and ice road surfaces and wet road surfaces. Used in the present invention is a rubber composition comprising a rubber component containing 60% by mass or more of natural rubber, wherein the rubber composition comprises 8 to 40 parts by mass of a thermoplastic resin based on 100 parts by mass of the rubber component and poly-p-dinitrosobenzene.Type: ApplicationFiled: January 7, 2016Publication date: January 25, 2018Applicant: BRIDGESTONE CORPORATIONInventor: Hideyuki SAKURAI
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Publication number: 20170198121Abstract: There is provided a rubber tire-tread composition comprising (A) a rubber component comprising 45% by mass or higher of one or more isoprene-based rubbers selected from the group consisting of natural rubbers and synthetic isoprene rubbers, and (B) one or more C5/C9-based petroleum resins selected from the group consisting of aromatic-modified aliphatic petroleum resins and aliphatic-modified aromatic petroleum resins in an amount of 5 to 50 parts by mass, and (C) a fatty acid metal salt in an amount of 0.5 to 10 parts by mass of, both based on 100 parts by mass of the rubber component.Type: ApplicationFiled: May 29, 2015Publication date: July 13, 2017Applicant: BRIDGESTONE CORPORATIONInventor: Hideyuki SAKURAI
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Publication number: 20170190886Abstract: There is provided a rubber tire-tread composition comprising (A) a rubber component comprising 30% by mass or higher of one or more isoprene-based rubbers selected from the group consisting of natural rubbers and synthetic isoprene rubbers, and (B) one or more resins selected from the group consisting of C5-based resins and dicyclopentadiene resins in an amount of 5 to 50 parts by mass, and (C) a fatty acid metal salt in an amount of 0.5 to 10 parts by mass, both based on 100 parts by mass of the rubber component.Type: ApplicationFiled: May 29, 2015Publication date: July 6, 2017Applicant: BRIDGESTONE CORPORATIONInventor: Hideyuki SAKURAI
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Publication number: 20170190887Abstract: There is provided a rubber tire-tread composition comprising (A) a rubber component comprising 30% by mass or higher of one or more isoprene-based rubbers selected from the group consisting of natural rubbers and synthetic isoprene rubbers, and (B) at least one resin selected from the group consisting of rosin acid resins, C9-based petroleum resins, alkylphenol formaldehyde resins and terpene phenol resins in an amount of 5 to 50 parts by mass, and (C) a fatty acid metal salt in an amount of 0.5 to 10 parts by mass of, both based on 100 parts by mass of the rubber component.Type: ApplicationFiled: May 29, 2015Publication date: July 6, 2017Applicant: BRIDGESTONE CORPORATIONInventor: Hideyuki SAKURAI
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Patent number: 9663056Abstract: An extension portion is formed at a vehicle front side end portion of a garnish main body. The extension portion bends back to the side thereof at which an storage space is formed, and projects toward a clip seat that is formed at the back side of the garnish main body. The extension portion is connected to a pillar inner panel and the clip seat by a clip. During expansion of a curtain airbag, the front pillar garnish turns about an integral hinge and the storage space opens up.Type: GrantFiled: June 18, 2014Date of Patent: May 30, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideyuki Sakurai, Mitsuaki Asano
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Patent number: 9623812Abstract: A groove extends in a vehicle longitudinal direction in a roof side garnish positioned on a terminal portion of a ceiling portion. As a result, a curved surface appears to be divided into a curved surface on a center side of the ceiling portion and a curved surface on a terminal portion side of the ceiling portion. Consequently, an illusion in which the ceiling portion appears as though it were divided into the center side and the terminal side of the ceiling portion. As a result, the cabin space appears spacious, so an occupant is able to feel less closed in.Type: GrantFiled: August 6, 2015Date of Patent: April 18, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideyuki Sakurai, Akihiro Tamaoki, Toru Kondo
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Publication number: 20160368447Abstract: An extension portion is formed at a vehicle front side end portion of a garnish main body. The extension portion bends back to the side thereof at which an storage space is formed, and projects toward a clip seat that is formed at the back side of the garnish main body. The extension portion is connected to a pillar inner panel and the clip seat by a clip. During expansion of a curtain airbag, the front pillar garnish turns about an integral hinge and the storage space opens up.Type: ApplicationFiled: June 18, 2014Publication date: December 22, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideyuki SAKURAI, Mitsuaki ASANO
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Publication number: 20160121695Abstract: A vehicle air conditioning unit is obtained that is capable of deflecting a blowing direction of an airflow blowing out from a blower outlet formed along a flow path. A movable shaft that supports a length direction other end portion of a guiding member is configured to be movable along the airflow flow direction. As a result, by turning movement of a lever, the movable shaft is slid, through a guide groove, along a vehicle width direction. The distance between the movable shaft and a fixed shaft thereby changes, changing the curvature of a front face of the guiding member, and enabling the airflow blowing out from a main flow blower outlet to be deflected along the vehicle width direction. Namely, the airflow blowing out from the main flow blower outlet is capable of being deflected toward the vehicle front-rear direction rear side, and toward the vehicle width direction.Type: ApplicationFiled: June 2, 2014Publication date: May 5, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hideyuki SAKURAI
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Publication number: 20160052558Abstract: A groove extends in a vehicle longitudinal direction in a roof side garnish positioned on a terminal portion of a ceiling portion. As a result, a curved surface appears to be divided into a curved surface on a center side of the ceiling portion and a cured surface on a terminal portion side of the ceiling portion. Consequently, an illusion in which the ceiling portion appears as though it were formed by two portions (a ceiling portion and a ceiling portion) is able to be created. As a result, the cabin space appears spacious, so an occupant is able to feel less closed in.Type: ApplicationFiled: August 6, 2015Publication date: February 25, 2016Inventors: Hideyuki SAKURAI, Akihiro TAMAOKI, Toru KONDO
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Publication number: 20160023686Abstract: A vehicle ceiling includes: a ceiling main body that is formed in a generally rectangular flat sheet shape, one surface of the ceiling main body being a ceiling surface; and a linear design portion that extends in a straight line or a curved line in a length direction of the ceiling main body such that at least a portion that is positioned on a ceiling front side is not parallel to a first center line, and that forms an accent that is visibly recognizable by a rear occupant when the vehicle ceiling is mounted to a vehicle. The first center line extends in the length direction and passes through a width direction middle position of the ceiling surface.Type: ApplicationFiled: July 24, 2015Publication date: January 28, 2016Inventors: Hideyuki SAKURAI, Akihiro TAMAOKI
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Publication number: 20150017902Abstract: There is obtained a vehicular air-conditioning device that can restrain the space of a cabin from decreasing. The vehicular air-conditioning device is equipped with a fan that produces an air current, a main current blowout port from which the air current produced through the operation of this fan is blown out toward a cabin, and a wind direction adjustment current blowout port from which the air current produced through the operation of the fan is blown out toward the cabin and which is arranged such that the air current thus blown out intersects with the air current blown out from the main current blowout port.Type: ApplicationFiled: March 28, 2012Publication date: January 15, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideyuki Sakurai, Takao Sato, Kayoko Hasegawa, Yasushi Shibuya
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Publication number: 20140256244Abstract: An air conditioning device for a vehicle, comprising an intake portion that is provided at a cabin side at a vehicle ceiling portion, and that takes-in air; a blow-out portion that is provided at the cabin side at the vehicle ceiling portion, and that blows out, into the cabin, air that has been taken-in from the intake portion; and a blower device that is provided at the vehicle ceiling portion and that, by operating, blows air from the intake portion toward the blow-out portion, the blower device being disposed at a vehicle front-rear direction rear side of a bulging portion that bulges toward the cabin side and that accommodates a sunroof that opens and closes a roof opening portion that is formed in the vehicle ceiling portion.Type: ApplicationFiled: June 17, 2013Publication date: September 11, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideyuki Sakurai, Takao Sato
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Publication number: 20090277333Abstract: An oxygen concentrating device easy to assemble and able to reduce production costs. The oxygen concentrating device (101) comprises a plurality of components including an adsorbing column (102) storing adsorbent capable of selectively adsorbing nitrogen contained in material air, a storing tank (103) for temporarily storing concentrated oxygen gas generated in the adsorbing column (102), a gas transferring means (104) for transferring material air, concentrated oxygen gas or exhaust gas, a solenoid valve (106) for opening/closing or switching a gas flow path connected to the adsorbing column (102), and a control means (108) for controlling the gas transferring means and/or the solenoid valve, resin supports (109) for positioning and supporting the plurality of components at predetermined locations, and a plurality of resin covers (110) covering the outer sides of the supports (109), the supports (109) being formed by injection molding.Type: ApplicationFiled: July 2, 2007Publication date: November 12, 2009Inventors: Hideyuki Sakurai, Noboru Watanabe
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Patent number: 4925209Abstract: An assembly for mounting an air bag cover in which an insert is formed integrally with the air bag cover so as to extended from the same, the end of the extend portion is bent back on itself to form a folded outer edge, and bolt holes are formed in the extended portion. The cover is mounted on the body of the vehicle by inserting bolts in the bolt holes. This assembly also includes a reinforcement member inserted into the bent portion at a position closer than the bolt holes to the extreme end folded outer edge of the extended portion. Even if the insert cracks at the bolt holes when the air bag cover is opened, the reinforcement member stops the progress of breaking of the insert by contacting the bolts, thereby preventing the cover from coming off and flying.Type: GrantFiled: February 28, 1989Date of Patent: May 15, 1990Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hideyuki Sakurai
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Patent number: 4773673Abstract: A mechanism for releasing a latch of a door covering an air bag container having a latching unit provided on an air bag door attached through a hinge to an instrument panel of a vehicle at the opposite side to the hinge, a cylinder body mounted near a latching lever in the latching unit and set in an attitude that the latching lever is operated in a latch releasing direction in case of releasing the latching unit by a rod telescoped in the cylinder, an air bag inflater formed with other passage for introducing part of gas generated in the inflater out of the air bag, the other passage being connectd to a vacant chamber at the opposite side to the rod of the cylinder. Since the mechanism releases the latch of the door by operating the cylinder unit by means of gas generated from the inflater, the air bag door can be opened simultaneously at the time of inflation of the air bag. In case of an inspection, the air bag door may sufficiently be opened, but may not be disassembled.Type: GrantFiled: December 28, 1987Date of Patent: September 27, 1988Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hideyuki Sakurai