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Katsufumi Kumano

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  • Fukui, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyester film for forming
    • Patent number 7,198,857
    • Issue date Apr 3, 2007
    • Toyo Boseki Kabushiki Kaisha
    • Katsufumi Kumano
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Optical coating film
    • Patent number 6,649,260
    • Issue date Nov 18, 2003
    • Toyo Boseki Kabushiki Kaisha
    • Katsufumi Kumano
    • G02 - OPTICS
  • Information Patent Grant

    Aliphatic polyester film
    • Patent number 6,323,308
    • Issue date Nov 27, 2001
    • Toyo Boseki Kabushiki Kaisha
    • Hisato Kobayashi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Void-containing composite film of polyester type
    • Patent number 5,422,175
    • Issue date Jun 6, 1995
    • Toyo Boseki Kabushiki Kaisha
    • Katsuya Ito
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Void-containing polyester-type film, and its laminate
    • Patent number 5,084,334
    • Issue date Jan 28, 1992
    • Toyo Boseki Kabushiki Kaisha
    • Akito Hamano
    • B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Polyester film for forming
    • Publication number 20060280959
    • Publication date Dec 14, 2006
    • Katsufumi Kumano
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Optical coating film
    • Publication number 20020106506
    • Publication date Aug 8, 2002
    • TOYO BOSEKI KABUSHIKI KAISHA
    • Katsufumi Kumano
    • G02 - OPTICS