Patents by Inventor Yohsio Matsuno

Yohsio Matsuno 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).

  • Patent number: 5143437
    Abstract: The brightness within a vehicle room is adjusted according to external brightness (i.e. illuminance or luminance) at night in such a way that the brightness is increased with increasing external brightness and decreased with decreasing external brightness, under due consideration of human eye adaptation to external lightness and darkness. Therefore, the passenger can read a book, for instance, at roughly a constant visual sensitivity, without being subjected to the influence of change in external illuminance or luminance.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: September 1, 1992
    Assignees: Nissan Motor Company, Limited, Matsushita Electric Industrial Co., Ltd.
    Inventors: Yohsio Matsuno, Shinichiro Choji, Kenichi Sasaki, Yoshinori Tanabe