Patents by Inventor Hironori Yoshikawa

Hironori Yoshikawa 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).

  • Air bag ignition control system for automotive vehicle and the method
    Patent number: 5067745
    Abstract: To reliably discriminate a slight collision from a serious collision or vice versa by use of only a single shock sensor, the air bag ignition control system for an automotive vehicle comprises a deceleration sensor, a low-pass filter, and a CPU provided with functions for calculating a vehicle speed information value B and a collision mode information value E both on the basis of deceleration detection signal, and an ignition decision information value F on the basis of the two calculated information values B and E. The CPU generates an air bag ignition signal when the calculated ignition decision information value F exceeds a predetermined value K. In practice, since the system can be mainly configured by low- and/or band-pass filters and a CPU, it is possible to simplify the system configuration, markedly.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: November 26, 1991
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Hironori Yoshikawa
  • Calculator or similar article
    Patent number: D245370
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: August 9, 1977
    Assignee: Al Nyman & Son, Inc.
    Inventors: Hisashi Maeda, Hironori Yoshikawa
  • Telephone unit
    Patent number: D250955
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: January 30, 1979
    Assignee: Iwatsu Electric Co. Ltd.
    Inventor: Hironori Yoshikawa
  • Telephone unit
    Patent number: D250956
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: January 30, 1979
    Assignee: Iwatsu Electric Co., Ltd.
    Inventor: Hironori Yoshikawa