Patents by Inventor Seizi Ishikawa

Seizi Ishikawa 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).

  • Motor vehicle diagnostic monitoring system
    Patent number: 4497057
    Abstract: A diagnostic monitoring system, for detecting and displaying malfunctions or abnormal operations occurring in various engine operation control computers, includes a microcomputer, actuators and sensors. Each of the engine operation control computers performs a diagnosis program as a part of their control programs and produces a signal whenever a malfunction or abnormal operation is detected. A central supervisory system receives such signals from the engine operation control computers and stores them separately for the individual control computers. A display unit displays the stored signals in response to instructions from the central supervisory system.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: January 29, 1985
    Assignees: Nippondenso Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Takaaki Kato, Yoshio Hirano, Takeshi Ochiai, Seizi Ishikawa, Kazunori Sakai