Patents by Inventor Yasuyoshi Akamatsu

Yasuyoshi Akamatsu 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).

  • Shift-time indicating system
    Patent number: 4025897
    Abstract: A shift-time indicating system for a manually operated transmission comprising two actuating circuits for shift-up and shift-down indicators, said circuits being arranged in parallel through change-over switches. The switches are operated in response to positions of a shift lever of the transmission and to an intake negative pressure of an engine. Each indicator is actuated when both of the switches are connected to the corresponding circuit, thereby indicating the driver a necessity of shift-up or shift-down.
    Type: Grant
    Filed: May 20, 1976
    Date of Patent: May 24, 1977
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Keiichi Kisuna, Yasuyoshi Akamatsu