TREA

Yasushi Okuda

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluorescent ink composition for use in marking pens
    • Patent number 5,698,614
    • Issue date Dec 16, 1997
    • Sakura Color Products Corporation
    • Hiroaki Ueda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Ink composition
    • Patent number 4,657,591
    • Issue date Apr 14, 1987
    • Sakura Color Products Corp.
    • Keiko Shioi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...