Patents by Inventor Minoru Komura

Minoru Komura 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 for applying corrosion-protective coating to joint between corrosion-protectively coated steel pipes
    Patent number: 5940952
    Abstract: A method for applying a corrosion-protective coating, with a heat-shrinkable tube, to a joint between welded end portions of corrosion-protectively coated steel pipes, has a configuration comprising the steps of: preparing a coating implement having a releasant layer formed on the outer circumferential portion of the heat-shrinkable tube, and a heating layer formed on the outer circumferential portion of the releasant layer; positioning the coating implement so as to cover the welded portion of the joint and its adjacent portions; thermally shrinking the coating implement in a state in which the gap between the coating implement and the aforementioned portions is kept in a vacuum; and removing the releasant layer and the heating layer, whereby the aforementioned portions are corrosion-protectively coated by the heat shrinkage of the tube.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: August 24, 1999
    Assignees: Nitto Denko Corporation, Nippon Kokan Co., Ltd., Nippon Kokan Koji Kabushiki Kaisha Kanagawa
    Inventors: Ryouichi Ikeda, Minoru Komura, Yoshihiro Okano, Norio Shoji, Toshiyuki Namioka, Akio Kida, Kiyotaka Hirahara
  • Method for applying corrosion-protective coating to joint between corrosion-protectively coated steel pipes
    Patent number: 5926936
    Abstract: In a joint between welded end portions of corrosion-protectively coated steel pipes, a heat-shrinkable tube is positioned so as to cover the outer circumference of a welded portion and the outer circumferences of its adjacent portions, and the heat-shrinkable tube is thermally shrunk in a state in which a gap between the heat-shrinkable tube and the aforementioned portions is kept in a vacuum so that the aforementioned portions are corrosion-protectively coated with the heat-shrinkable outer layer of the heat-shrinkable tube thus thermally shrunk.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: July 27, 1999
    Assignees: Nitto Denko Corporation, Nippon Kokan Co., Ltd., Nippon Kokan Koji Kabushiki Kaisha
    Inventors: Ryouichi Ikeda, Minoru Komura, Yoshihiro Okano, Norio Shoji, Toshiyuki Namioka, Akio Kida, Kiyotaka Hirahara
  • Heat shrinkable material
    Patent number: 4440821
    Abstract: Heat shrinkable material comprising a heat shrinkable substrate and a layer of different kinds of adhesives provided on the substrate, which exhibits excellent impact resistance and adhesion properties over a wide temperature range.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: April 3, 1984
    Assignee: Nitto Electric Industrial Co., Ltd.
    Inventors: Minoru Komura, Yasuhiro Moriyama
  • Protective cover for a thermoresponsive tube
    Patent number: 4245674
    Abstract: Thermoshrinkable or thermoexpansive tubes for corrosion prevention or lin of piping are disclosed which have their inner and/or outer walls covered with at least one protective cover to keep them clean from dust, dirt, water or any other foreign matter which might interfere with adhesion to the pipe connection, thus causing corrosion or poor lining.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: January 20, 1981
    Assignees: Nitto Denki Kogyo Kabushiki Kaisha (Nitto Electric Industrial Co. Ltd.), Osaka Gasu Kabushiki Kaisha (Osaka Gas Company Ltd.)
    Inventors: Syuichi Nakamura, Satoshi Ogawa, Yasuhiro Moriyama, Tomihisa Ueno, Minoru Komura
  • Protective cover for a thermoresponsive tube
    Patent number: 4188979
    Abstract: Thermoshrinkable or thermoexpansive tubes for corrosion prevention or lining of piping are disclosed which have their inner and/or outer walls covered with at least one protective cover to keep them clean from dust, dirt, water or any other foreign matter which might interfere with adhesion to the pipe connection, thus causing corrosion or poor lining.
    Type: Grant
    Filed: September 12, 1978
    Date of Patent: February 19, 1980
    Assignees: Nitto Denki Kogyo Kabushiki Kaisha, Osaka Gasu Kabushiki Kaisha
    Inventors: Syuichi Nakamura, Satoshi Ogawa, Yasuhiro Moriyama, Tomihisa Ueno, Minoru Komura