Patents by Inventor Katuhiro Ohmori

Katuhiro Ohmori 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).

  • Battery charger using a car battery as a power source
    Patent number: 5677614
    Abstract: In a battery charger of the type using a car battery as a power source for charging a rechargeable batter, when a low voltage state of the car battery continues for a first predetermined period of time, charging of the rechargeable battery will be interrupted. However, charging of the battery will be resumed when the voltage of the car battery reverts to a predetermined allowable voltage before expiration of a second predetermined period of time. If the low voltage state of the car battery continues for the second predetermined period of time, charging of the rechargeable battery is no longer performed.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: October 14, 1997
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Katuhiro Ohmori, Takahito Ishizuka, Koji Kanazawa