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Hirofumi Johoji

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  • Ichihara-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polymer and method for producing same
    • Patent number 8,431,663
    • Issue date Apr 30, 2013
    • Tokyo Institute of Technology
    • Kohtaro Osakada
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Copolymer and method for producing same
    • Patent number 8,389,656
    • Issue date Mar 5, 2013
    • Tokyo Institute of Technology
    • Kohtaro Osakada
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Olefin derived copolymer
    • Patent number 6,858,676
    • Issue date Feb 22, 2005
    • Sumitomo Chemical Company, Ltd.
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Olefin-based copolymer composition
    • Patent number 6,632,541
    • Issue date Oct 14, 2003
    • Sumitomo Chemical Company, Limited
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Olefin polymer and thermoplastic resin composition
    • Patent number 6,562,907
    • Issue date May 13, 2003
    • Sumitomo Chemical Company, Limited
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Thermoplastic resin composition
    • Patent number 6,525,138
    • Issue date Feb 25, 2003
    • Sumitomo Chemical Company, Limited
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Propylenic copolymer and thermoplastic resin composition
    • Patent number 6,458,901
    • Issue date Oct 1, 2002
    • Sumitomo Chemical Company, Limited
    • Keisaku Yamamoto
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Resin composition pellet
    • Patent number 6,331,593
    • Issue date Dec 18, 2001
    • Sumitomo Chemical Limited., Co.
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Ethylene-α-olefin-nonconjugated polyene random copolymer
    • Patent number 6,300,447
    • Issue date Oct 9, 2001
    • Sumitomo Chemical Company, Limited
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Propylene copolymer
    • Patent number 6,121,401
    • Issue date Sep 19, 2000
    • Sumitomo Chemical Company, Limited
    • Keisaku Yamamoto
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Copolymer and copolymer composition
    • Patent number 6,084,046
    • Issue date Jul 4, 2000
    • Sumitomo Chemical Company, Limted
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Ethylene-.alpha.-olefin copolymer and a molded article therefor
    • Patent number 5,602,223
    • Issue date Feb 11, 1997
    • Sumitomo Chemical Company, Limited
    • Toshio Sasaki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for polymerizing ethylene at high temperature under high pr...
    • Patent number 5,508,364
    • Issue date Apr 16, 1996
    • Sumitomo Chemical Company, Limited
    • Toshio Sasaki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Liquid catalyst component, catalyst system containing the same, and...
    • Patent number 5,378,778
    • Issue date Jan 3, 1995
    • Sumitomo Chemical Company, Limited
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing ethylene-.alpha.-olefin copolymers
    • Patent number 5,258,476
    • Issue date Nov 2, 1993
    • Sumitomo Chemical Company, Limited
    • Toshio Sasaki
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    POLYMER AND METHOD FOR PRODUCING SAME
    • Publication number 20110245441
    • Publication date Oct 6, 2011
    • TOKYO INSTITUTE OF TECHNOLOGY
    • Kohtaro OSAKADA
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    COPOLYMER AND METHOD FOR PRODUCING SAME
    • Publication number 20110245440
    • Publication date Oct 6, 2011
    • TOKYO INSTITUTE OF TECHNOLOGY
    • Kohtaro OSAKADA
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Olefin polymer and thermoplastic resin composition
    • Publication number 20020120065
    • Publication date Aug 29, 2002
    • Sumitomo Chemical Company, Limited
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    OLEFIN-BASED COPOLYMER COMPOSITION
    • Publication number 20020072561
    • Publication date Jun 13, 2002
    • HIROFUMI JOHOJI
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Thermoplastic resin composition
    • Publication number 20020055592
    • Publication date May 9, 2002
    • Sumitomo Chemical Company, Limited
    • Hirofumi Johoji
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...