Patents by Inventor Eiichi Hamanaga

Eiichi Hamanaga 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: 5224751
    Abstract: An instrument panel structure or dashboard of a vehicle is constituted by an instrument panel arranged on the front side of a passenger room, a steering wheel, arranged in front of a driver's seat, for regulating a travel direction of the vehicle, and an operation switch mounting portion which is defined on the dashboard, and on which various operation switches are mounted. The operation switch mounting portion is curved so as to be located on the rear side of a vehicle body from a portion far from a mounting position of the steering wheel toward the mounting position of the steering wheel. The operation switch mounting portion has a first area which is defined on a portion near the mounting position of the steering wheel, and on which a first-class operation switch having the highest importance of the various operation switches is mounted.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: July 6, 1993
    Assignee: Mazda Motor Corporation
    Inventors: Isao Hirashima, Eiichi Hamanaga, Toshinori Sakamoto
  • Patent number: D470808
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: February 25, 2003
    Assignee: Mazda Motor Corporation
    Inventors: Iwao Koizumi, Kouji Sakamoto, Katsuya Miyazaki, Kouichi Hayashi, Eiichi Hamanaga
  • Patent number: D471496
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: March 11, 2003
    Assignee: Mazda Motor Corporation
    Inventors: Noriaki Tsurumi, Masashi Nakayama, Kouichi Hayashi, Eiichi Hamanaga