Patents Assigned to Ozen Corp.
  • Sound response time switch for flowing current for a predetermined period of time
    Patent number: 4349747
    Abstract: A sound received by a diaphragm is converted by means of a piezo-electric element into an electric current and amplified. The amplified current functions to cause both a monostable multi-vibrator circuit and a load drive circuit to operate in cooperation to close a circuit to an actuator for a predetermined period of time so as to allow it to actuate the load for the predetermined period.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: September 14, 1982
    Assignee: Ozen Corp.
    Inventor: Bungo Hasegawa