Patents by Inventor Mitsuru Sugimori

Mitsuru Sugimori 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).

  • Induction heating method and apparatus for relieving residual stress in welded joints in pipe line
    Patent number: 4687894
    Abstract: A heating method and apparatus for effecting the residual-stress-relief treatment of a welded joint in a pipe line. A welded joint between main pipes, between a main pipe and a branch pipe, between a main pipe and a pipe base or between a branch pipe and a pipe seat and a portion adjacent to the welded point are uniformly or substantially uniformly heated by an inductor which can be varied into configurations according to the performance of the welded joint. The problems encountered in the conventional residual-stress-relief treatment can be substantially overcome.
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: August 18, 1987
    Assignees: Daiichi Koshuha Kogyo Kabushiki Kaisha, Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Tadao Koga, Mitsuru Sugimori, Masanori Terasaki, Tsukasa Maenosono, Satoru Tsushima, Kazuo Yoshida, Tetsusho Kuriwaki, Miharu Hirado