Patents by Inventor Toshio Tsuruoka

Toshio Tsuruoka 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).

  • Oil level detection device in engine oil pan
    Patent number: 4037471
    Abstract: An engine oil level detection device of a construction, wherein an observation window is provided in one part of an oil receptacle or pan, and a wiper to clean the inner surface of the window soiled with the lubricant oil stuck thereonto by splashing is held on the window portion in a manner to be rotatable by finger actions or by a tool.
    Type: Grant
    Filed: May 28, 1976
    Date of Patent: July 26, 1977
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshinori Okamoto, Toshio Tsuruoka