Patents by Inventor Harumi Dohke

Harumi Dohke 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).

  • Apparatus for controlling a vehicle headlamp
    Patent number: 4890037
    Abstract: The present invention utilizes a dimmer switch for alternating the lighting direction of a vehicle headlamp, but does so utilizing control apparatus that ensures that only low beam-directed light is emitted by the headlamp when the headlamp is turned ON. The possiblity which might be presented if oncoming traffic is suddenly met with high beam-directed light when an automobile driver turns his headlamps ON is thereby averted.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: December 26, 1989
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Minoru Izawa, Tadanao Hamamoto, Masaru Ishikawa, Harumi Dohke, Tasuku Nakano