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Yusuke Koizumi

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  • Yokohama-shi, Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Handwriting input device
    • Patent number 10,838,520
    • Issue date Nov 17, 2020
    • Mitsubishi Pencil Company, Limited
    • Kyo Nakayama
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Chuck body and mechanical pencil
    • Patent number 9,649,872
    • Issue date May 16, 2017
    • Mitsubishi Pencil Company, Limited
    • Yusuke Koizumi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    HANDWRITING INPUT DEVICE
    • Publication number 20190227644
    • Publication date Jul 25, 2019
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kyo Nakayama
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    CHUCK BODY AND MECHANICAL PENCIL
    • Publication number 20150314632
    • Publication date Nov 5, 2015
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Yusuke Koizumi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES