TREA

Kenichi Shibuya

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Aqueous metallic ink composition
    • Patent number 6,171,381
    • Issue date Jan 9, 2001
    • Sakura Color Products Corporation
    • Yasuyuki Yoshimura
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water base erasable ink compositions
    • Patent number 5,854,320
    • Issue date Dec 29, 1998
    • Sakura Color Products Corporation
    • Keiko Nakamura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...