Patents by Inventor Yuuji Katsuna

Yuuji Katsuna 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).

  • Vehicle height detecting system
    Patent number: 4847591
    Abstract: A vehicle height sensor includes a switching circuit which is turned on and off in accordance with a vehicle height. When a drive signal is outputted to the vehicle height sensor, the vehicle height sensor is activated. A connector is connected to an output side of the switching circuit. A digital vehicle height data signal is transmitted from the switching circuit via the connector. A preset signal is outputted from the vehicle height sensor to the connector when a check signal is generated. The preset signal represents preset check data. A data receives the preset signal via the connector and reads the check data from the preset signal. The read check data is compared with a predetermined reference data. The connector is judged to be wrong when the read check data differs from the reference data.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: July 11, 1989
    Assignees: Nippondenso Co., Ltd., Toyota Jidosha & Kabushiki Kaisha
    Inventors: Kazuomi Ota, Hiroaki Nishimura, Hirofumi Mokuya, Kohji Kamiya, Yoshinori Ishiguro, Kiyoshi Miyake, Hiroshi Sakurai, Yuuji Katsuna, Joji Yamaguchi