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Takeshi WAKAYAMA

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  • Kawagoe-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mechanical pencil
    • Patent number D1010733
    • Issue date Jan 9, 2024
    • MITSUBISHI PENCIL COMPANY, LTD.
    • Hiroaki Kondo
    • D19 - Office supplies
  • Information Patent Grant

    Writing instrument
    • Patent number D998038
    • Issue date Sep 5, 2023
    • MITSUBISHI PENCIL COMPANY, LTD.
    • Hiroaki Kondo
    • D19 - Office supplies
  • Information Patent Grant

    Mechanical pencil
    • Patent number 11,390,109
    • Issue date Jul 19, 2022
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Hand tools, cosmetic devices and writing instruments
    • Patent number 11,065,907
    • Issue date Jul 20, 2021
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Sleeve for a mechanical pencil
    • Patent number D908796
    • Issue date Jan 26, 2021
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • D19 - Office supplies
  • Information Patent Grant

    Mechanical pencil
    • Patent number D895729
    • Issue date Sep 8, 2020
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • D19 - Office supplies
  • Information Patent Grant

    Sleeve with cushion spring for mechanical pencil
    • Patent number D871502
    • Issue date Dec 31, 2019
    • Kotobuki & Co., Ltd.
    • Hidehei Kageyama
    • D19 - Office supplies
  • Information Patent Grant

    Writing instrument
    • Patent number 10,343,446
    • Issue date Jul 9, 2019
    • Kotobuki & Co., Ltd.
    • Takeshi Wakayama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument
    • Patent number 10,293,632
    • Issue date May 21, 2019
    • Kotobuki & Co., Ltd.
    • Takeshi Wakayama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents