Patents by Inventor Ryoji Isomura

Ryoji Isomura 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).

  • Rear spoiler
    Patent number: 5845960
    Abstract: A rear spoiler attached to the roof of an automobile is so designed that the ratio of outflow width to inflow width is 0.5.about.0.9 while the vehicle velocity ratio is made 30 or greater.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: December 8, 1998
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Tsuneyuki Koike, Terutsugu Gotanda, Nobutoshi Hase, Ryoji Isomura, Kiyoshi Yamane