Patents by Inventor Tsuneaki Arakawa

Tsuneaki Arakawa 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).

  • Motorcycle engine mounting structure
    Patent number: 4237996
    Abstract: A motorcycle engine mounting structure having a head tube (23), a main frame pipe (21) extended rearwardly from the head tube, and an engine (60). In order to increase the freedom of design for mounting an engine and to ensure a radiator mounting space, a pair of supporting members (40, 50; 240, 250) are suspended from the front part of the main frame (21), and the engine (60) is supported in the front part through the supporting members.
    Type: Grant
    Filed: October 4, 1978
    Date of Patent: December 9, 1980
    Assignee: Honde Giken Kogyo Kabushiki Kaisha
    Inventors: Minoru Matsuda, Mitsuo Nakagawa, Tsuneaki Arakawa