Patents by Inventor Masaaki Houki

Masaaki Houki 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).

  • Method and device for detecting pinholes in organic film on concrete surface
    Patent number: 6636031
    Abstract: A technique for detecting whether or not a pinhole is present in an organic film on a concrete surface, by detecting the conductivity of the concrete in advance. In the bottom portion of a measuring means body having a high-frequency oscillator accommodated therein, there are disposed electrodes which are insulated from each other through an insulating plate. Two electrodes are provided in parallel and are placed in contact with the surface of the lining film coating the surface of the concrete body. Thus, the electrodes are held in contact with the surface of the lining film, and a high-frequency signal is fed from the high-frequency oscillator to between the electrodes.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: October 21, 2003
    Assignees: Sanko Electronic Laboratory Co., Ltd., Shinko Electric & Instrumentation Co., Ltd
    Inventors: Fukio Kenmochi, Takao Tsurudome, Masaaki Houki, Noboru Yamazaki