Patents by Inventor Kunihide Kamiyama

Kunihide Kamiyama 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).

  • Fence sensor
    Patent number: 6456198
    Abstract: It is an object of this invention to provide a fence sensor which can achieve an excellent detection stability without using a current for generating an electric field nor infrared rays. The fence sensor comprises a detection electrode (8); a reference electrode (9) insulated from the detection electrode (8); a chargeable member (4) insulated from both of the detection electrode (8) and the reference electrode (9); and a detection circuit (20) for detecting a change in the electrostatic capacitance between the detection electrode and the reference electrode that is generated by the presence of an object to be detected within a detection region of the detection electrode. In this fence sensor, the chargeable member is arranged such that at least a part of the chargeable member is situated within the detection region of the detection electrode. Further, the chargeable member is formed from a conductor.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: September 24, 2002
    Assignee: KS Techno Co., Ltd.
    Inventors: Ryochi Kato, Hideto Kato, Kunihide Kamiyama, Kiichi Seino