Ryoichi Tukahara

Person

  • Ohmuta, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Composition for liquid crystal color display

    • Patent number 4,555,355
    • Issue date Nov 26, 1985
    • Mitsui Toatsu Chemicals, Inc.
    • Yasuyuki Yamada
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Nematic liquid crystalline composition

    • Patent number 4,536,320
    • Issue date Aug 20, 1985
    • Mitsui Toatsu Chemicals, Inc.
    • Tsutomu Nishizawa
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Composition for liquid crystal color display elements

    • Patent number 4,473,486
    • Issue date Sep 25, 1984
    • Mitsui Toatsu Chemicals, Inc.
    • Ryoichi Morinaka
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Composition for liquid crystal color display

    • Patent number 4,459,218
    • Issue date Jul 10, 1984
    • Mitsui Toatsu Chemicals, Inc.
    • Yasuyuki Yamada
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Composition for liquid crystal color display elements

    • Patent number 4,360,447
    • Issue date Nov 23, 1982
    • Mitsui Toatsu Chemicals, Inc.
    • Ryoichi Morinaka
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Composition for liquid crystal color display element

    • Patent number 4,304,683
    • Issue date Dec 8, 1981
    • Mitsui Toatsu Chemicals, Inc.
    • Ryoichi Morinaka
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...