TREA

Tadashi Koriki

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  • Sawa-gun, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Refill for correction pen and refill unit
    • Patent number 7,600,938
    • Issue date Oct 13, 2009
    • Mitsubishi Pencil Co., Ltd.
    • Kyoko Kobayashi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Oil-based ink composition and writing instrument using the same
    • Patent number 7,417,080
    • Issue date Aug 26, 2008
    • Mitsubishi Pencil Co., Ltd.
    • Masanao Yano
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Click type writing implement
    • Patent number 6,435,751
    • Issue date Aug 20, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Makoto Ono
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Applicator
    • Patent number 5,957,609
    • Issue date Sep 28, 1999
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaaki Morita
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents