TREA

Taketoshi Miyamoto

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tip for ball point pen
    • Patent number 4,251,164
    • Issue date Feb 17, 1981
    • Pentel Kabushiki Kaisha
    • Eishiro Nakagawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Method of making a tip for a ball point pen
    • Patent number 4,231,146
    • Issue date Nov 4, 1980
    • Pentel Kabushiki Kaisha
    • Eishiro Nakagawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES