Patents by Inventor Sukiro Obata

Sukiro Obata 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 detector
    Patent number: 4368525
    Abstract: A vibration detector of the seismic system comprisesa weight member;a support frame;at least two weight supporting members, each of the supporting members being fixed to the weight member at one end thereof and being substantially fixed to the support frame at one portion thereof in detecting the vibration; anda member for substantially fixing one portion to the support frame in detecting the vibration; wherein the weight member is vibratively supported by the tension of the supporting members, and at least a part of one of the supporting members is formed by a piezoelectric polymeric substance having a pair of vibration detecting electrodes, the part being at a position between the fixed end and one substantially fixed portion of the supporting member.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: January 11, 1983
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Sukiro Obata, Naohiro Murayama, Teruo Fujii