Patents by Inventor Shigetoshi Ikeda

Shigetoshi Ikeda 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).

  • Polytetrafluoroethylene resins that can be processed by shaping, shaped products thereof, and processes for producing the resins and shaped products
    Patent number: 9266984
    Abstract: A polytetrafluoroethylene resin comprising polytetrafluoroethylene having a two-dimensional branched structure in the molecule is produced by exposing polytetrafluoroethylene to an ionizing radiation at a dose of no more than 10 kGy.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: February 23, 2016
    Assignees: RAYTECH CORPORATION, DAIKIN INDUSTRIES, LTD.
    Inventors: Yoneho Tabata, Hideto Suzuki, Shigetoshi Ikeda, Minoru Iida, Minoru Kawai, Gen Kojima, Yasuhiko Sawada
  • Non-porous sinter molded article of tetrafluoroethylene resin, expanded tetrafluoroethylene resin molded article, producing methods therefor, composite member, filter, impact deformation absorber and sealing material
    Patent number: 8715559
    Abstract: A tetrafluoroethylene resin molded article obtained by fusing PTFE by heating a tetrafluoroethylene resin by heating, and then executing a gradual cooling or a cooling including a holding at a temperature equal to or higher than 313° C. and lower than 321° C. for 10 minutes or longer, and having, when heated to 365° C., then cooled to 245° C. with a rate of ?1° C./min, and then heated to 365° C. with a rate of 10° C./min, a heat of fusion which, within a range from 296 to 343° C., is equal to or larger than 32 J/g and less than 47.8 J/g, a porous article obtained by expanding the molded article, and a composite article, a filter, an impact deformation absorber and a sealing material utilizing the molded article or the porous article.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: May 6, 2014
    Assignee: Sumitomo Electric Fine Polymer, Inc.
    Inventors: Fumihiro Hayashi, Shinichi Kanazawa, Atsushi Uno, Akira Udagawa, Shigetoshi Ikeda, Toshiaki Yagi
  • POLYTETRAFLUOROETHYLENE RESINS THAT CAN BE PROCESSED BY SHAPING, SHAPED PRODUCTS THEREOF, AND PROCESSES FOR PRODUCING THE RESINS AND SHAPED PRODUCTS
    Publication number: 20110171403
    Abstract: A polytetrafluoroethylene resin comprising polytetrafluoroethylene having a two-dimensional branched structure in the molecule is produced by exposing polytetrafluoroethylene to an ionizing radiation at a dose of no more than 10 kGy.
    Type: Application
    Filed: September 30, 2009
    Publication date: July 14, 2011
    Inventors: Yoneho Tabata, Hideto Suzuki, Shigetoshi Ikeda, Minoru Iida, Minoru Kawai, Gen Kojima, Yasuhiko Sawada
  • Tetrafluoroethylene resin molded article, expanded tetrafluoroethylene resin molded article, producing methods therefor, composite member, filter, impact deformation absorber and sealing material
    Publication number: 20090029136
    Abstract: A tetrafluoroethylene resin molded article obtained by fusing PTFE by heating a tetrafluoroethylene resin by heating, and then executing a gradual cooling or a cooling including a holding at a temperature equal to or higher than 313° C. and lower than 321° C. for 10 minutes or longer, and having, when heated to 365° C., then cooled to 245° C. with a rate of ?1° C./min, and then heated to 365° C. with a rate of 10° C./min, a heat of fusion which, within a range from 296 to 343° C., is equal to or larger than 32 J/g and less than 47.8 J/g, a porous article obtained by expanding the molded article, and a composite article, a filter, an impact deformation absorber and a sealing material utilizing the molded article or the porous article.
    Type: Application
    Filed: September 8, 2006
    Publication date: January 29, 2009
    Inventors: Fumihiro Hayashi, Shinichi Kanazawa, Atsushi Uno, Akira Udagawa, Shigetoshi Ikeda, Toshiaki Yagi
  • Product having reduced friction and improved abrasion resistance
    Patent number: 5985949
    Abstract: A product having reduced friction and improved abrasion resistance comprises a formed resin containing at least one fluorine-containing polymer which is exposed to an ionizing radiation. The formed resin may include from 1 to 100 weight percent of the fluorine-containing polymer in the form of powder, and from 99 to 0 percent of a high molecule polymer which is not exposed to the ionizing radiation. The fluorine-containing polymer is preferably exposed to the ionizing radiation for a total dose of from 1 KGy to 10 MGy in the absence of oxygen at a temperature not lower than the melting point of a starting fluorine-containing polymer.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: November 16, 1999
    Assignees: Japan Atomic Energy Research Institute, Hitachi Cable, Ltd., Raytech Corporation, Asahi Glass Co., Ltd.
    Inventors: Tadao Seguchi, Noboru Kasai, Akinari Nakayama, Hideki Yagyu, Yoneho Tabata, Kazushige Otsuhata, Shigetoshi Ikeda, Akihiro Ohshima, Mitsuharu Morozumi, Masumi Nomura