Patents by Inventor Kohji Orita

Kohji Orita 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).

  • Breakage detector having a conductive bent metallic leaf spring therein
    Patent number: 4122445
    Abstract: The detector is primarily for detecting glass breakage and is constructed as a sensing element for detecting the breakage and generating an alarm signal. The detector generally comprises a thin cylindrical casing including a first leaf spring and a second leaf spring having a plurality identations or bends thereon for absorbing noise signals below a breakage frequency signal when a glass panel is actually broken or cut.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: October 24, 1978
    Assignee: Hokuseki Sangyo Kabushiki Kaisha
    Inventor: Kohji Orita