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Seiichiro Ima

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Patents Grantslast 30 patents

  • Information Patent Grant

    Ethylene-α-olefin copolymer and polyethylene composition
    • Patent number 6,667,375
    • Issue date Dec 23, 2003
    • Sumitomo Chemical Company, Limited
    • Tadahiro Mitsuno
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polypropylene random copolymer and film thereof
    • Patent number 6,451,936
    • Issue date Sep 17, 2002
    • Sumitomo Chemical Company, Limited
    • Hajime Sadatoshi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Propylene-ethylene random copolymer film
    • Patent number 6,057,413
    • Issue date May 2, 2000
    • Sumitomo Chemical Company, Limited
    • Seiichiro Ima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polypropylene film
    • Patent number 5,726,269
    • Issue date Mar 10, 1998
    • Sumitomo Chemical Company, Ltd.
    • Seiichiro Ima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polypropylene composition and the film thereof
    • Patent number 5,654,372
    • Issue date Aug 5, 1997
    • Sumitomo Chemical Company Limited
    • Hajime Sadatoshi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polypropylene compositions and film thereof
    • Patent number 5,641,828
    • Issue date Jun 24, 1997
    • Sumitomo Chemical Company, Limited
    • Hajime Sadatoshi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polypropylene composition and film thereof
    • Patent number 5,340,878
    • Issue date Aug 23, 1994
    • Sumitomo Chemical Company, Limited
    • Hajime Sadatoshi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polypropylene stretched film
    • Patent number 5,115,027
    • Issue date May 19, 1992
    • Sumitomo Chemical Company, Limited
    • Tadatoshi Ogawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polypropylene stretched film
    • Patent number 5,032,645
    • Issue date Jul 16, 1991
    • Sumitomo Chemical Company, Limited
    • Tadatoshi Ogawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Overlay films
    • Patent number 5,019,442
    • Issue date May 28, 1991
    • Sumitomo Chemical Company, Limited
    • Tadatoshi Ogawa
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Polypropylene film
    • Patent number 4,927,872
    • Issue date May 22, 1990
    • Sumitomo Chemical Company, Limited
    • Masahiro Kakugo
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Polypropylene film
    • Patent number 4,839,234
    • Issue date Jun 13, 1989
    • Sumitomo Chemical Company, Limited
    • Masahiro Kakugo
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Polypropylene multi-layer film
    • Patent number 4,786,562
    • Issue date Nov 22, 1988
    • Sumitomo Chemical Company, Limited
    • Masahiro Kakugo
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Polypropylene multi-layer film
    • Patent number 4,769,284
    • Issue date Sep 6, 1988
    • Sumitomo Chemical Company, Limited
    • Masahiro Kakugo
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Molded products of polypropylene
    • Patent number RE32542
    • Issue date Nov 10, 1987
    • Sumitomo Chemical Company, Limited
    • Akinobu Shiga
    • 428 - Stock material or miscellaneous articles
  • Information Patent Grant

    Stretched polypropylene film
    • Patent number 4,603,174
    • Issue date Jul 29, 1986
    • Sumitomo Chemical Company, Limited
    • Tadayuki Okada
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Stretched multilayer polypropylene film
    • Patent number 4,584,239
    • Issue date Apr 22, 1986
    • Sumitomo Chemical Company, Limited
    • Masahiro Kakugo
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Process for producing propylene block copolymers
    • Patent number 4,433,110
    • Issue date Feb 21, 1984
    • Sumitomo Chemical Company, Limited
    • Kazuo Baba
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Propylene-ethylene copolymer having improved stretchability
    • Patent number 4,414,373
    • Issue date Nov 8, 1983
    • Sumitomo Chemical Co., Ltd.
    • Akinobu Shiga
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for producing a propylene-ethylene copolymer having improve...
    • Patent number 4,355,144
    • Issue date Oct 19, 1982
    • Sumitomo Chemical Company Limited
    • Akinobu Shiga
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Molded products of polypropylene
    • Patent number 4,283,463
    • Issue date Aug 11, 1981
    • Sumitomo Chemical Company, Limited
    • Akinobu Shiga
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...