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Hidetoshi Okawa

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  • Fuji-shi, Shizuoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thermal bond non-woven fabric containing cyclic olefin resin
    • Patent number 10,494,748
    • Issue date Dec 3, 2019
    • Polyplastics Co., Ltd.
    • Hidetoshi Okawa
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Process of making a flat yarn from polyoxymethylene film
    • Patent number 7,022,280
    • Issue date Apr 4, 2006
    • Polyplastics Co., Ltd.
    • Hidetoshi Okawa
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Polyoxymethylene fiber and method for production thereof
    • Patent number 6,818,294
    • Issue date Nov 16, 2004
    • Polyplastics Co., Ltd.
    • Takeshi Kikutani
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Branched polyacetal resin composition
    • Patent number 6,753,368
    • Issue date Jun 22, 2004
    • Polyplastics Co., Ltd.
    • Hidetoshi Okawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Branched polyacetal resin composition
    • Patent number 6,737,475
    • Issue date May 18, 2004
    • Polyplastics Co., Ltd.
    • Yoshihisa Tajima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyacetal resin composition
    • Patent number 6,642,321
    • Issue date Nov 4, 2003
    • Polyplastics Co., Ltd.
    • Hidetoshi Okawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Branched polyacetal resin composition
    • Patent number 6,583,203
    • Issue date Jun 24, 2003
    • Polyplastics Co., Ltd.
    • Kuniaki Kawaguchi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyacetal copolymer and method for producing the same
    • Patent number 6,426,393
    • Issue date Jul 30, 2002
    • Polyplastics Co., Ltd.
    • Yoshihisa Tajima
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyacetal copolymer
    • Patent number 6,365,704
    • Issue date Apr 2, 2002
    • Polyplastics Co., Ltd.
    • Hidetoshi Okawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Copolyacetal
    • Patent number 6,255,440
    • Issue date Jul 3, 2001
    • Polyplastics Co., Ltd.
    • Hidetoshi Okawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents