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Junichi Hashimoto

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanical pencil with automatic lead advance
    • Patent number 4,504,163
    • Issue date Mar 12, 1985
    • Pentel Kabushiki Kaisha
    • Junichi Hashimoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil with removable lead feed cover
    • Patent number 4,500,220
    • Issue date Feb 19, 1985
    • Pentel Kabushiki Kaisha
    • Junichi Hashimoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil with automatic lead advance
    • Patent number 4,459,057
    • Issue date Jul 10, 1984
    • Pentel Kabushiki Kaisha
    • Junichi Hashimoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Self-feeding mechanical pencil
    • Patent number 4,411,543
    • Issue date Oct 25, 1983
    • Pentel Kabushiki Kaisha
    • Junichi Hashimoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil having a lead detector
    • Patent number 4,360,280
    • Issue date Nov 23, 1982
    • Pentel Kabushiki Kaisha
    • Tomozo Sekiguchi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Mechanical pencil
    • Patent number 4,299,506
    • Issue date Nov 10, 1981
    • Pentel Kabushiki Kaisha
    • Junichi Hashimoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Tip-pushed type mechanical pencil
    • Patent number 4,211,500
    • Issue date Jul 8, 1980
    • Pentel Kabushiki Kaisha
    • Junichi Hashimoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES