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Hirofumi Yamaguchi

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  • Hyogo, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    VISCOUS COMPOSITION
    • Publication number 20230149286
    • Publication date May 18, 2023
    • SUMITOMO SEIKA CHEMICALS CO.,LTD.
    • Hirofumi YAMAGUCHI
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    VISCOUS COMPOSITION
    • Publication number 20220251365
    • Publication date Aug 11, 2022
    • SUMITOMO SEIKA CHEMICALS CO., LTD.
    • Hirofumi YAMAGUCHI
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    VISCOUS COMPOSITION
    • Publication number 20220135768
    • Publication date May 5, 2022
    • SUMITOMO SEIKA CHEMICALS CO., LTD.
    • Hirofumi YAMAGUCHI
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    VISCOUS COMPOSITION
    • Publication number 20220056256
    • Publication date Feb 24, 2022
    • Sumitomo Seika Chemicals Co., Ltd.
    • Hirofumi YAMAGUCHI
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    AQUEOUS POLYMER DISPERSION COMPOSITION
    • Publication number 20220054391
    • Publication date Feb 24, 2022
    • Sumitomo Seika Chemicals Co., Ltd.
    • Ryosuke MURAKAMI
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    GEL COMPOSITION, DISPERSION, AND METHOD FOR PRODUCING GEL COMPOSITION
    • Publication number 20210380767
    • Publication date Dec 9, 2021
    • SUMITOMO SEIKA CHEMICALS CO., LTD.
    • Makiko MIYAMOTO
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    (METH)ACRYLIC ACID-BASED COPOLYMER
    • Publication number 20140100327
    • Publication date Apr 10, 2014
    • Sumitomo Seika Chemicals Co., Ltd.
    • Hirofumi Yamaguchi
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    PHOTOACID GENERATOR AND PHOTOREACTIVE COMPOSITION
    • Publication number 20100233621
    • Publication date Sep 16, 2010
    • Sumitomo Seika Chemicals Co., Ltd.
    • Katsumasa Yamamoto
    • C07 - ORGANIC CHEMISTRY