Patents by Inventor Masaji Hirano

Masaji Hirano 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).

  • Sliding door structure
    Patent number: 5992097
    Abstract: A sliding door structure for opening/closing a sliding door by guiding it to slide has a guide rail having a component for sliding the slide door upwardly and an insert hole for facilitating an insertion of a roller into an inside space of the guide rail.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: November 30, 1999
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Kazuya Makiuchi, Mamoru Nishihira, Kunihiko Hisamoto, Masaji Hirano, Masakatsu Tsubouchi, Ryoichi Fukumoto, Tsuyoshi Kamiya
  • Outside handle of automobile sliding door
    Patent number: 5975597
    Abstract: An outside handle of a vehicular sliding door to open/close an opening of a vehicle body, having a bell crank portion which is formed into an L-shape having a first joint and a second joint at its leading ends and is turnably supported at its L-shaped bent portion on a the base portion through a crank pin. A fixed link is formed between the handle pin of the handle portion and the crank pin of the bell crank portion to construct a four-point link mechanism together with the handle portion, the sub-link portion and the bell crank portion.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: November 2, 1999
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuya Makiuchi, Mamoru Nishihira, Kunihiko Hisamoto, Masaji Hirano, Ryoichi Fukumoto, Morihito Nomura, Masakatsu Tsubouchi