Patents by Inventor Toshiaki Isobe

Toshiaki Isobe 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).

  • Electronic timer
    Patent number: 4129812
    Abstract: An electronic timer circuit comprising a condenser for storing charged electrons, a control switch opened and closed in response to the status of a sensed condition, a controlled switch for controlling a load, a high input impedance circuit coupled to the controlled switch for discharging the condenser and for causing the controlled switch to close when the control switch is closed and the charge stored in the condenser is greater than some predetermined amount and a switching component responsive to the control switch for restricting the discharge rate of the condenser to a low level.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: December 12, 1978
    Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Hiromichi Shigenobu, Toshiaki Isobe, Minoru Kondo