Patents by Inventor Tatsufumi Mochizuki

Tatsufumi Mochizuki 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 timing control for automatic transmission
    Patent number: 5184528
    Abstract: A shift timing control for an automatic transmission comprises a hydraulic passage having a first drain port, a first valve having a second drain port, and a second valve disposed between a low clutch release chamber and the hydraulic passage. The second valve selectivity connects the high clutch chamber with the low clutch release chamber in second gear so as to drain off hydraulic fluid within the high clutch chamber and the low clutch release chamber from the first drain port, and the low clutch release chamber with a band brake fourth gear apply chamber in third gear so as to drain off hydraulic fluid within the low clutch chamber and the band brake fourth gear apply chamber from the second drain port.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: February 9, 1993
    Assignee: Jatco Corporation
    Inventor: Tatsufumi Mochizuki