TREA

Akinobu Ichihara

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  • Kameoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Surfactant
    • Patent number 5,332,854
    • Issue date Jul 26, 1994
    • Dai-Ichi Kogyo Seiyaku Co., Ltd.
    • Kinya Yokota
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Surfactant
    • Patent number 5,324,862
    • Issue date Jun 28, 1994
    • Dai-Ichi Kogyo Seiyaku Co., Ltd.
    • Kinya Yokota
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Surface active compounds having a polymerizable moiety
    • Patent number 4,939,283
    • Issue date Jul 3, 1990
    • Dai-Ichi Kogyo Seiyaku Co., Ltd.
    • Kinya Yokota
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Surface active compounds having a polymerizable moiety
    • Patent number 4,918,211
    • Issue date Apr 17, 1990
    • Dai-Ichi Kogyo Seiyaku Co., Ltd.
    • Kinya Yokota
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Surface active compounds having a polymerizable moiety
    • Patent number 4,814,514
    • Issue date Mar 21, 1989
    • Dai-Ichi Kogyo Seiyaku Co., Ltd.
    • Kinya Yokota
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Sizing agent suitable for use in paper making
    • Patent number 4,666,523
    • Issue date May 19, 1987
    • Dai-chi Kogyuo Seiyaku Co., Ltd.
    • Kinya Yokota
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE