Patents by Inventor Tohru Hiroysu

Tohru Hiroysu 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: 5128685
    Abstract: The invention relates to an antenna attached to a vehicle roof glass, i.e. a glass plate fitted in an opening of the roof of a vehicle body such as an automobile body, for receiving FM radio and TV broadcast waves in both the VHF band and the UHF band. Essentially the antenna is comprised of a main element which is a conductive strip attached to the roof glass and bent so as to make a closed plane figure, a feed point attached to the roof glass and a connection line which connects the main element to the feed point and extends parallel or nearly parallel to the longitudinal center axis of the vehicle body. The total length of the main element is from 200 to 1500 mm. For example, the main element makes a rectangle in a central region of the roof glass with two opposite sides of the rectangle parallel to the aforementioned center axis. Optionally the antenna may include an auxiliary element which is a conductive strip attached to the roof glass and connected to the feed point.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: July 7, 1992
    Assignee: Central Glass Company, Limited
    Inventors: Masao Shinnai, Kazuya Nishikawa, Tokio Tsukada, Tohru Hiroysu