Patents by Inventor Kaneo Takahashi

Kaneo Takahashi 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).

  • Apparatus for demolishing a reactor shield wall
    Patent number: 4813313
    Abstract: The invention relates to an apparatus for demolishing a reactor shield wall. The apparatus has a pillar (2) extending from the top side of the reactor toward the bottom of the reactor, an upper support device (3) for supporting the upper portion of the pillar (2) at the top side of the reactor, and cutting devices (5, 6) mounted to the pillar so as to be upwardly and downwardly movable along the pillar (2). The pillar (2) is rotatably supported by the support device (3). The upper support device (3) has drive devices (30, 31, 32) for rotating the pillar (2). The cutting devices (5, 6) are caused to swing in the reactor interior by rotating the pillar (2). The drive devices are disposed at the top side of the reactor, and this permits easy maintenance and inspection.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: March 21, 1989
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Shimizu Kensetsu Kabushiki Kaisha
    Inventors: Makoto Ichikawa, Kaneo Takahashi, Mitsuo Tokomoto, Hironori Zaita, Kazunori Kooyama, Kashiro Ureshino, Katsuhiko Yoshida