TREA

Masahisa Maki

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  • Aichi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ballpoint pen tip and ballpoint pen using the same
    • Patent number 6,341,914
    • Issue date Jan 29, 2002
    • The Pilot Ink Co., Ltd.
    • Hiroyasu Abe
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cap for writing equipment
    • Patent number 4,844,642
    • Issue date Jul 4, 1989
    • Pilot Ink Co., Ltd.
    • Takao Inaba
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents