Patents by Inventor Akira Hukatsu

Akira Hukatsu 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).

  • Control system for automatic transmission
    Patent number: 5921885
    Abstract: An automatic transmission control system is equipped with a pressure modulating valve for regulating the engaging pressure to be supplied to frictional engagement elements for setting respective gear stages of the automatic transmission, a signal pressure output valve for providing signal pressure, and a switching valve.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: July 13, 1999
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Aw Kabushiki Kaisha
    Inventors: Atsushi Tabata, Yasuo Hojo, Hideki Miyata, Akira Hukatsu