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Yoshihiro Wada

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Writing instrument
    • Patent number 5,352,051
    • Issue date Oct 4, 1994
    • Pentel Kabushiki Kaisha
    • Takashi Tamura
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 5,217,313
    • Issue date Jun 8, 1993
    • Pentel Kabushiki Kaisha
    • Takashi Tamura
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ink ribbon regenerating device
    • Patent number 5,190,385
    • Issue date Mar 2, 1993
    • Pentel Kabushiki Kaisha
    • Tetuo Taguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Writing instrument
    • Patent number D332626
    • Issue date Jan 19, 1993
    • Pentel Kabushiki Kaisha
    • Yoshihiro Wada
    • D19 - Office supplies
  • Information Patent Grant

    Temporary ink storage member and writing instrument using the same
    • Patent number 5,087,144
    • Issue date Feb 11, 1992
    • Pentel Kabushiki Kaisha
    • Yoshihiro Wada
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Synthetic resin rod with a multiplicity of capillary passages
    • Patent number 4,215,948
    • Issue date Aug 5, 1980
    • Pentel Kabushiki Kaisha
    • Itsuo Horie
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES