Patents by Inventor Yujiro Tsutsui

Yujiro Tsutsui 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).

  • Vibration noise suppressive rain sensor for a wiper control system
    Patent number: 4603316
    Abstract: A wiper control system controls an automotive wiper in accordance with rain conditions. Rain conditions are detected by means of a rain sensor which has a vibrator adapted to vibrate at an amplitude corresponding to rain conditions. The vibrator is adapted to produce a sensor signal having an amplitude corresponding to its vibration. The vibrator vibrates at a resonant frequency outside of the audible frequency range and has adequate sensitivity for detecting rain conditions.
    Type: Grant
    Filed: January 26, 1984
    Date of Patent: July 29, 1986
    Assignees: Nissan Motor Company, Limited, Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Kyoji Kobayashi, Yujiro Tsutsui
  • Automatic door locking/unlocking device for an automotive vehicle
    Patent number: 4502718
    Abstract: A door lock/unlock system for an automotive vehicle having a safety means for preventing a driving unit for electrically driving a door lock mechanism between a door lock position and an unlock position from being damaged by mis-operation. The safety means inhibits power supply to the driving unit when the door locking operation is made while the door lock mechanism is in the lock position and when the door unlocking operation is made while the door lock mechanism is in the unlock position.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: March 5, 1985
    Assignees: Nissan Motor Company, Limited, Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Ichiro Sasaki, Yujiro Tsutsui, Masaru Inoue, Toru Kase
  • Automatic speed control device
    Patent number: 4321901
    Abstract: An automatic speed control device for a vehicle or a stationary generator for emergency use is disclosed.
    Type: Grant
    Filed: July 29, 1980
    Date of Patent: March 30, 1982
    Assignee: Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Kyoji Kobayashi, Yujiro Tsutsui, Noboru Kaneko, Ekiro Hidaka, Kiyoshi Konishi, Toshio Iwaoka