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Yoshitaka Sumi

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  • Ichihara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Propylene resin composition
    • Patent number 6,716,921
    • Issue date Apr 6, 2004
    • Chisso Corporation
    • Takanori Nakashima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Molded polypropylene
    • Patent number 6,429,262
    • Issue date Aug 6, 2002
    • Chisso Corporation
    • Shinichi Akitaya
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Propylene block copolymer compositions
    • Patent number 6,355,736
    • Issue date Mar 12, 2002
    • Chisso Corporation
    • Takanori Nakashima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polypropylene composition
    • Patent number 6,323,286
    • Issue date Nov 27, 2001
    • Chisso Corporation
    • Hitoshi Kuramochi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Propylene polymer blends, processes of producing the same and polyp...
    • Patent number 6,319,991
    • Issue date Nov 20, 2001
    • Chisso Corporation
    • Chikashi Okayama
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Unoriented polypropylene molding
    • Patent number 6,258,893
    • Issue date Jul 10, 2001
    • Chisso Corporation
    • Chikashi Okayama
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...