Patents by Inventor Tsutomo Saigo

Tsutomo Saigo 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 remaining capacity measuring apparatus
    Patent number: 5872453
    Abstract: A battery remaining capacity measuring apparatus comprises a temperature sensor 5 and a remaining capacity operation portion 19. A temperature sensor 5 detects a temperature of a battery 3. A remaining capacity operation portion 19, wherein when a detected temperature of a battery 3 from a temperature sensor 5 is not within the range of a predetermined temperature in the state of an open circuit, a load 1 and a battery 3 which are previously obtained according to a detected temperature correct a line pattern in the state of an open circuit and when a load is connected to a battery, a remaining capacity can be obtained on the corrected line. Accordingly, it is possible to obtain a remaining capacity according to this temperature, even if a temperature of a battery 3 is not within the range of a predetermined temperature.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: February 16, 1999
    Assignee: Yazaki Corporation
    Inventors: Kenichi Shimoyama, Tsutomo Saigo, Youichi Arai