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Kana Miyoshi

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Aqueous ink composition for ballpoint pen
    • Patent number 11,634,601
    • Issue date Apr 25, 2023
    • Mitsubishi Pencil Company, Limited
    • Akiko Hirayama
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Aqueous ink composition for writing instruments
    • Patent number 10,851,252
    • Issue date Dec 1, 2020
    • Mitsubishi Pencil Company, Limited
    • Kana Miyoshi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

  • Information Patent Application

    AQUEOUS INK COMPOSITION FOR WRITING INSTRUMENT
    • Publication number 20210047529
    • Publication date Feb 18, 2021
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kousuke OGURA
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    AQUEOUS INK COMPOSITION FOR BALLPOINT PEN
    • Publication number 20200165473
    • Publication date May 28, 2020
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Akiko HIRAYAMA
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    AQUEOUS INK COMPOSITION FOR WRITING INSTRUMENTS
    • Publication number 20190211220
    • Publication date Jul 11, 2019
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kana Miyoshi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...