Patents by Inventor Seiho Yonezawa
Seiho Yonezawa 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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Patent number: 11597442Abstract: A vehicle frame structure includes a pair of side members located on both right and left sides of a vehicle, each of the pair of side members extending both forward and rearward of a cabin along a respective side of the cabin. As each of the pair of side members extends in a longitudinal direction at a substantially uniform height, a load applied to one end can be transferred toward the other end.Type: GrantFiled: February 4, 2021Date of Patent: March 7, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seiho Yonezawa, Hiroshi Chino, Taisuke Satoi, Tomoya Takahashi
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Publication number: 20210253173Abstract: A vehicle frame structure includes a pair of side members located on both right and left sides of a vehicle, each of the pair of side members extending both forward and rearward of a cabin along a respective side of the cabin. As each of the pair of side members extends in a longitudinal direction at a substantially uniform height, a load applied to one end can be transferred toward the other end.Type: ApplicationFiled: February 4, 2021Publication date: August 19, 2021Inventors: Seiho Yonezawa, Hiroshi Chino, Taisuke Satoi, Tomoya Takahashi
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Patent number: 11077887Abstract: Each of a monocoque body and a subframe is integrally formed of reinforced resin. The subframe has a bottom portion and an upstanding portion. The bottom portion is fixed to the lower portion of the rear wall of the monocoque body and extends rearward of the vehicle. The upstanding portion extends upward from the bottom portion. An engine is directly mounted on the rear surface of the upstanding portion.Type: GrantFiled: January 24, 2020Date of Patent: August 3, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventors: Seiho Yonezawa, Hiroki Hyodo, Tetsuya Oda
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Publication number: 20200247480Abstract: Each of a monocoque body and a subframe is integrally formed of reinforced resin. The subframe has a bottom portion and an upstanding portion. The bottom portion is fixed to the lower portion of the rear wall of the monocoque body and extends rearward of the vehicle. The upstanding portion extends upward from the bottom portion. An engine is directly mounted on the rear surface of the upstanding portion.Type: ApplicationFiled: January 24, 2020Publication date: August 6, 2020Inventors: Seiho Yonezawa, Hiroki Hyodo, Tetsuya Oda
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Patent number: 9150256Abstract: A vehicle hood structure capable of improving impact absorption ability prior to a secondary impact when an impacting body impacts the hood. Front end portions of beads of a wave shaped section are arranged in a line in hood plan view. A front wall section is provided further to the hood front side than the wave shaped section and is formed inclined towards the hood bottom side on progression towards the hood front and running substantially along the vehicle width direction. The wave shaped section and the front wall section are connected together by a ledge section formed running substantially along the hood width direction.Type: GrantFiled: July 8, 2010Date of Patent: October 6, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Seiho Yonezawa, Koki Ikeda, Shinya Atsumi, Nao Nakagawa
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Patent number: 9033407Abstract: A hood structure that is for a vehicle and that can cause an increase in energy absorption performance when colliding with a collided object. An undulating section wherein beads and concavities are provided in alternation along the widthwise direction of the hood and that has a wavy shape in a cross sectional view is formed at nearly the entire central region of a hood inner panel. In the cross section of the wavy shape of the undulating section, the widthwise measurement between the peaks of the beads that are formed on both adjacent sides of any given bead aside from the two on the ends among the plurality of beads is set in a manner so as to be smaller than 165 mm, which is the outer diameter of a head impactor that simulates the head of a pedestrian.Type: GrantFiled: March 26, 2010Date of Patent: May 19, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koki Ikeda, Seiho Yonezawa
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Patent number: 9027987Abstract: A hood inner panel that is provided with plural wave-shaped portions that extend in a vehicle longitudinal direction is provided at a vehicle lower side of a hood outer panel. A lock reinforcement is disposed at a lower side of a vehicle front of the hood inner panel. Front end portions of the plural wave-shaped portions of the hood inner panel are positioned further toward a vehicle front side than a rear end portion of the lock reinforcement.Type: GrantFiled: May 18, 2011Date of Patent: May 12, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koki Ikeda, Seiho Yonezawa, Tsuyoshi Izuhara
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Patent number: 8991908Abstract: A vehicle hood structure capable of both raising the energy absorbing ability when an impacting body has impacted a hood and enhancing deformation properties of the hood during a frontal collision. A framework formation section configuring a central region in a hood inner panel is provided with beads and indented portions formed to extend along the hood front-rear direction. Plural through holes are formed at a hood front-rear direction substantially central portion of the framework formation section in a row along the hood width direction. The through holes are formed in bottom portions of the indented portions. Beads are also formed in the two hood width direction edge portions in positions aligned with the hood front-rear direction positions of the through holes.Type: GrantFiled: December 28, 2009Date of Patent: March 31, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koki Ikeda, Seiho Yonezawa
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Publication number: 20140062142Abstract: A hood inner panel that is provided with plural wave-shaped portions that extend in a vehicle longitudinal direction is provided at a vehicle lower side of a hood outer panel. A lock reinforcement is disposed at a lower side of a vehicle front of the hood inner panel. Front end portions of the plural wave-shaped portions of the hood inner panel are positioned further toward a vehicle front side than a rear end portion of the lock reinforcement.Type: ApplicationFiled: May 18, 2011Publication date: March 6, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koki Ikeda, Seiho Yonezawa, Tsuyoshi Izuhara
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Publication number: 20130106142Abstract: A vehicle hood structure capable of improving impact absorption ability prior to a secondary impact when an impacting body impacts the hood. Front end portions of beads of a wave shaped section are arranged in a line in hood plan view. A front wall section is provided further to the hood front side than the wave shaped section and is formed inclined towards the hood bottom side on progression towards the hood front and running substantially along the vehicle width direction. The wave shaped section and the front wall section are connected together by a ledge section formed running substantially along the hood width direction.Type: ApplicationFiled: July 8, 2010Publication date: May 2, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seiho Yonezawa, Koki Ikeda, Shinya Atsumi, Nao Nakagawa
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Publication number: 20130015682Abstract: A hood structure that is for a vehicle and that can cause an increase in energy absorption performance when colliding with a collided object. An undulating section wherein beads and concavities are provided in alternation along the widthwise direction of the hood and that has a wavy shape in a cross sectional view is formed at nearly the entire central region of a hood inner panel. In the cross section of the wavy shape of the undulating section, the widthwise measurement between the peaks of the beads that are formed on both adjacent sides of any given bead side from the two on the ends among the plurality of beads is set in a manner so as to be smaller than 165 mm, which is the outer diameter of a head impactor that simulates the head of a pedestrian.Type: ApplicationFiled: March 26, 2010Publication date: January 17, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koki Ikeda, Seiho Yonezawa
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Patent number: 8337064Abstract: A weak portion (connection release device) is provided in an upper connection portion in which a headlamp, which is a lamp, is connected to a radiator support, which is a vehicle body, and therefore, when an impact load is applied from above a vehicle, an upper portion of the headlamp is detached from the radiator support. In a lower connection portion in which a lower portion of the headlamp is connected to a bumper reinforcement, which is a vehicle body, a lower connection device maintains a connection between the lower portion of the headlamp and the bumper reinforcement. When the impact load is applied in a longitudinal direction of the vehicle, the lower connection device releases the connection between the headlamp and the bumper reinforcement.Type: GrantFiled: September 18, 2008Date of Patent: December 25, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Seiho Yonezawa
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Publication number: 20120285759Abstract: A vehicle hood structure capable of both raising the energy absorbing ability when an impacting body has impacted a hood and enhancing deformation properties of the hood during a frontal collision. A framework formation section configuring a central region in a hood inner panel is provided with beads and indented portions formed to extend along the hood front-rear direction. Plural through holes are formed at a hood front-rear direction substantially central portion of the framework formation section in a row along the hood width direction. The through holes are formed in bottom portions of the indented portions. Beads are also formed in the two hood width direction edge portions in positions aligned with the hood front-rear direction positions of the through holes.Type: ApplicationFiled: December 28, 2009Publication date: November 15, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koki Ikeda, Seiho Yonezawa
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Publication number: 20100214801Abstract: A weak portion (connection release device) is provided in an upper connection portion in which a headlamp, which is a lamp, is connected to a radiator support, which is a vehicle body, and therefore, when an impact load is applied from above a vehicle, an upper portion of the headlamp is detached from the radiator support. In a lower connection portion in which a lower portion of the headlamp is connected to a bumper reinforcement, which is a vehicle body, a lower connection device maintains a connection between the lower portion of the headlamp and the bumper reinforcement. When the impact load is applied in a longitudinal direction of the vehicle, the lower connection device releases the connection between the headlamp and the bumper reinforcement.Type: ApplicationFiled: September 18, 2008Publication date: August 26, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Seiho Yonezawa
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Patent number: 7677616Abstract: A bumper absorber includes an upper leg and a lower leg, each of which extends in a longitudinal direction of an automobile, and a spanning portion. The spanning portion connects the upper leg and the lower leg, and faces an outer surface side of the bumper absorber in a longitudinal direction of the automobile. Each of the upper leg and the lower leg includes a buckling inductive portion that serves as a starting point of the buckling that is caused when the spanning portion receives an impact load. The buckling inductive portion is formed as an angular transition portion in which the angle of inclination between inner side surfaces changes. The inner side surfaces mutually face between the upper leg and the lower leg that include the buckling inductive portion.Type: GrantFiled: February 27, 2008Date of Patent: March 16, 2010Assignees: Hayashi Telempu Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Takahiko Taniguchi, Seiho Yonezawa, Soshi Mitsuyama, Hiroyasu Miyamoto
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Publication number: 20080217936Abstract: A bumper absorber (2) includes an upper leg (2b) and a lower leg (2c), each of which extends in a longitudinal direction of an automobile, and a spanning portion (2d). The spanning portion (2d) connects the upper leg (2b) and the lower leg (2c), and faces an outer surface side of the bumper absorber (2) in a longitudinal direction of the automobile. Each of the upper leg (2b) and the lower leg (2c) includes a buckling inductive portion (2f that serves as a starting point of the buckling that is caused when the spanning portion (2d) receives an impact load. The buckling inductive portion (2f) is formed as an angular transition portion in which the angle of inclination between inner side surfaces changes. The inner side surfaces mutually face between the upper leg (2b) and the lower leg (2c) that include the buckling inductive portion (2f).Type: ApplicationFiled: February 27, 2008Publication date: September 11, 2008Applicants: HAYASHI TELEMPU CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiko Taniguchi, Seiho Yonezawa, Soshi Mitsuyama, Hiroyasu Miyamoto