Patents by Inventor Nobuyuki Ohtsu

Nobuyuki Ohtsu 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).

  • Method for detecting abnormality of control unit and control unit employing same
    Patent number: 6122574
    Abstract: A method of detecting an abnormality of a control unit arranged to execute a writing process and a reading process of data between a CPU and EEPROM. The method measures a time period of the reading process and informs that an abnormality of a system is generated when the reading process time period becomes greater than a predetermined value.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: September 19, 2000
    Assignees: Unisia Jecs Corporation, Nissan Motor Co., Ltd.
    Inventors: Nobuyuki Ohtsu, Masaru Yamashita, Hiroshi Tsunehara
  • Anti-lock braking system
    Patent number: 5480217
    Abstract: An anti-lock braking system of a motor vehicle has at least three road wheels. The system comprises respective hydraulically actuating units for the road wheels. Each actuating unit feeds a brake cylinder of the corresponding road wheel with a brake pressure upon braking.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: January 2, 1996
    Assignee: Unisia Jecs Corporation
    Inventor: Nobuyuki Ohtsu