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Hirofumi Niitsuma

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  • Fukushima-ken, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Input device
    • Patent number 8,476,542
    • Issue date Jul 2, 2013
    • Alps Electric Co., Ltd.
    • Yasuji Hagiwara
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Analog input device
    • Patent number 7,414,612
    • Issue date Aug 19, 2008
    • Alps Electric Co., Ltd.
    • Hirofumi Niitsuma
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    X-Y direction input device
    • Patent number 5,164,712
    • Issue date Nov 17, 1992
    • Alps Electric Co., Ltd.
    • Hirofumi Niitsuma
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    INPUT DEVICE
    • Publication number 20080223706
    • Publication date Sep 18, 2008
    • Yasuji Hagiwara
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Analog input device
    • Publication number 20050012730
    • Publication date Jan 20, 2005
    • Alps Electric Co., Ltd.
    • Hirofumi Niitsuma
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Computer with slidable built-in unit
    • Publication number 20030103035
    • Publication date Jun 5, 2003
    • Alps Electric Co., Ltd.
    • Kazutoshi Watanabe
    • G06 - COMPUTING CALCULATING COUNTING