Patents by Inventor Takayuki Ebisawa

Takayuki Ebisawa 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).

  • Vehicle-use alternating current generator control system
    Patent number: 5608309
    Abstract: A vehicle alternating-current generator control system comprising a voltage command unit for variably controlling a reference voltage according to the state of an internal combustion engine, and an arithmetic unit for storing the difference between a target generation voltage commanded by the voltage command unit and a battery voltage detected by a voltage detection circuit and adding a voltage corresponding to the voltage difference to a command voltage generated by the voltage command unit.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: March 4, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Sakae Hikita, Yuuji Maeda, Masakatsu Fujishita, Masahiro Sato, Seiichi Kawasaki, Takayuki Ebisawa