Patents by Inventor Yuuichi Machijima

Yuuichi Machijima 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).

  • Active sensor, multipoint active sensor, method for diagnosing deterioration of pipe, and apparatus for diagnosing deterioration of pipe, and apparatus for diagnosis deterioration of pipe
    Patent number: 7711217
    Abstract: An active sensor 10 is positioned on an outside of a pipe 60 so as to detect a thickness of the pipe. The active sensor comprises: an oscillator 15 capable of inputting oscillatory waves into the pipe and sweeping a frequency of the oscillatory waves within a desired range; and an optical fiber sensor mounted on the pipe, the optical fiber sensor detecting the oscillatory waves generated in the pipe.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: May 4, 2010
    Assignees: Kabushiki Kaisha Toshiba, Lazoc Incorporated
    Inventors: Masashi Takahashi, Keiichi Sasaki, Nobuo Yamaga, Norio Ahiko, Koichi Yoshimura, Masanobu Ohi, Yoshio Mochida, Yuuichi Machijima, Takehiro Shirai
  • ACTIVE SENSOR, MULTIPOINT ACTIVE SENSOR, INSPECTION METHOD OF PIPE DETERIORATION AND INSPECTION APPARATUS OF PIPE DETERIORATION
    Publication number: 20080260324
    Abstract: An active sensor 10 is positioned on an outside of a pipe 60 so as to detect a thickness of the pipe. The active sensor comprises: an oscillator 15 capable of inputting oscillatory waves into the pipe and sweeping a frequency of the oscillatory waves within a desired range; and an optical fiber sensor mounted on the pipe, the optical fiber sensor detecting the oscillatory waves generated in the pipe.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 23, 2008
    Applicants: KABUSHIKI KAISHA TOSHIBA, LAZOC INCORPORATED
    Inventors: Masashi TAKAHASHI, Keiichi Sasaki, Nobuo Yamaga, Norio Ahiko, Koichi Yoshimura, Masanobu Ooi, Yoshio Mochida, Yuuichi Machijima, Takehiro Shirai