TREA

Masaaki Matsumoto

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  • Fujioka-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Solid drawing material
    • Patent number 10,023,756
    • Issue date Jul 17, 2018
    • Mitsubishi Pencil Company, Limited
    • Huyen Nguyen Thi Thanh
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Solid drawing material and solid drawing tool
    • Patent number 9,090,784
    • Issue date Jul 28, 2015
    • Mitsubishi Pencil Company, Limited
    • Katsunori Kitazawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    PENCIL LEAD
    • Publication number 20230398808
    • Publication date Dec 14, 2023
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Hiroyuki ARAI
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Solid Drawing Material
    • Publication number 20170051173
    • Publication date Feb 23, 2017
    • Mitsubishi Pencil Company, Limited
    • Huyen Nguyen Thi Thanh
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    SOLID DRAWING MATERIAL AND SOLID DRAWING TOOL
    • Publication number 20130177345
    • Publication date Jul 11, 2013
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Katsunori Kitazawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES