Patents by Inventor Kazuyuki Yoshiyama

Kazuyuki Yoshiyama 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).

  • Patent number: 8307935
    Abstract: In a vehicle pop-up hood apparatus in which a rod is extended and a hood is pushed up by the operation of an actuator at a time of collision with a collision body, collision energy is absorbed with high efficiency when a collision load of a predetermined value or greater is input to an area near a hood pushed up position. Actuator (18) operates such that rod (20) moves in an axial direction toward a hood upper side, pushes up a rear edge side of hood rocker (12) and holds it at that position and, in that state, when a collision load of a predetermined value or greater acts from a hood upper side to near the pushed up position of the hood, push portion (54) slides along pushed up surface (38) of hinge arm (30) towards a vehicle rear side, and rod (20) is made to bend in conjunction therewith.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: November 13, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, Toyoda Gosei Co., Ltd., Pacific Industrial Co., Ltd.
    Inventors: Hiroyuki Takahashi, Hitoshi Yuasa, Yukio Nakagawa, Kazuyuki Yoshiyama, Shigeyuki Suzuki, Takeki Hayashi, Hajime Kitte, Masashi Aoki, Toshikatsu Togawa, Toshinobu Tsuboi, Shinji Mori
  • Publication number: 20110031056
    Abstract: In a vehicle pop-up hood apparatus in which a rod is extended and a hood is pushed up by the operation of an actuator at a time of collision with a collision body, collision energy is absorbed with high efficiency when a collision load of a predetermined value or greater is input to an area near a hood pushed up position. Actuator (18) operates such that rod (20) moves in an axial direction toward a hood upper side, pushes up a rear edge side of hood rocker (12) and holds it at that position and, in that state, when a collision load of a predetermined value or greater acts from a hood upper side to near the pushed up position of the hood, push portion (54) slides along pushed up surface (38) of hinge arm (30) towards a vehicle rear side, and rod (20) is made to bend in conjunction therewith.
    Type: Application
    Filed: January 22, 2009
    Publication date: February 10, 2011
    Inventors: Hiroyuki Takahashi, Hitoshi Yuasa, Yukio Nakagawa, Kazuyuki Yoshiyama, Shigeyuki Suzuki, Takeki Hayashi, Hajime Kitte, Masashi Aoki, Toshikatsu Togawa, Toshinobu Tsuboi, Shinji Mori
  • Patent number: 7815007
    Abstract: The present invention provides a hood impact absorbing apparatus capable of further mitigating an impact that a collision body receives from a hood than ever, wherein a push-up rod pushes up the rear end of a hood at the time of a collision of a vehicle, and when a collision body is battered against the top surface of the hood in this state, the rear end of the hood descends and the distal end of the push-up rod slidingly contacts and moves a rear-side flat portion and an arm intermediate curved portion in the rear end of the hood, and herein, a slide contact angle (?) in the arm intermediate curved portion is larger than a slide contact angle (?) in the rear end of the rear-side flat portion, thereby, during a process in which the rear end of the hood descends, peaks at which an absorbing amount of impact energy becomes large can be provided at least twice, and as a result, the impact can be mitigated further than ever.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: October 19, 2010
    Assignees: Pacific Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinji Mori, Yukio Nakagawa, Kazuyuki Yoshiyama, Takeki Hayashi, Shigeyuki Suzuki
  • Publication number: 20090302644
    Abstract: The present invention provides a hood impact absorbing apparatus capable of further mitigating an impact that a collision body receives from a hood than ever, wherein a push-up rod pushes up the rear end of a hood at the time of a collision of a vehicle, and when a collision body is battered against the top surface of the hood in this state, the rear end of the hood descends and the distal end of the push-up rod slidingly contacts and moves a rear-side flat portion and an arm intermediate curved portion in the rear end of the hood, and herein, a slide contact angle (?) in the arm intermediate curved portion is larger than a slide contact angle (?) in the rear end of the rear-side flat portion, thereby, during a process in which the rear end of the hood descends, peaks at which an absorbing amount of impact energy becomes large can be provided at least twice, and as a result, the impact can be mitigated further than ever.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 10, 2009
    Applicants: PACIFIC INDUSTRIAL CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYODA GOSEI CO., LTD.
    Inventors: Shinji Mori, Yukio Nakagawa, Kazuyuki Yoshiyama, Takeki Hayashi, Shigeyuki Suzuki