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Yasuaki Kambe

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  • Aichi-ken, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Photochromic composition
    • Patent number 12,098,289
    • Issue date Sep 24, 2024
    • The Pilot Ink Co., Ltd.
    • Yasuaki Kambe
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Reversibly thermochromic aqueous ink composition and writing instru...
    • Patent number 11,267,978
    • Issue date Mar 8, 2022
    • Kabushiki Kaisha Pilot Corporation
    • Katsuyuki Fujita
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...