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Chikazu Yokoi

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  • Odawara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic disc storage unit for electronic computer
    • Patent number D730894
    • Issue date Jun 2, 2015
    • Hitachi, Ltd.
    • Junpei Hokari
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Magnetic disk storage unit for electronic computer
    • Patent number D690694
    • Issue date Oct 1, 2013
    • Hitachi, Ltd.
    • Toshiyuki Utsuki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Storage device
    • Patent number 7,965,502
    • Issue date Jun 21, 2011
    • Hitachi, Ltd.
    • Kenichi Miyamoto
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Disk array system
    • Patent number 7,911,789
    • Issue date Mar 22, 2011
    • Hitachi, Ltd.
    • Tsuyoshi Sasagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Disk array system
    • Patent number 7,738,254
    • Issue date Jun 15, 2010
    • Hitachi, Ltd.
    • Yuri Oyama
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Disk array system
    • Patent number 7,724,529
    • Issue date May 25, 2010
    • Hitachi, Ltd.
    • Yuri Oyama
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Storage device
    • Patent number 7,719,834
    • Issue date May 18, 2010
    • Hitachi, Ltd.
    • Kenichi Miyamoto
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Disk array system
    • Patent number 7,593,225
    • Issue date Sep 22, 2009
    • Hitachi, Ltd.
    • Tsuyoshi Sasagawa
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Magnetic disc storage unit for electronic computer
    • Patent number D575782
    • Issue date Aug 26, 2008
    • Hitachi, Ltd.
    • Kazuhiko Nishiyama
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Magnetic disc storage unit for electronic computer
    • Patent number D575780
    • Issue date Aug 26, 2008
    • Hitachi, Ltd.
    • Kazuhiko Nishiyama
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Magnetic disc storage unit for electronic computer
    • Patent number D573988
    • Issue date Jul 29, 2008
    • Hitachi, Ltd.
    • Kazuhiko Nishiyama
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Disc apparatus with a guide for disk insertion
    • Patent number 5,220,552
    • Issue date Jun 15, 1993
    • Hitachi, Ltd.
    • Chikazu Yokoi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magneto-optical recording/reproducing apparatus
    • Patent number 5,060,207
    • Issue date Oct 22, 1991
    • Hitachi, Ltd.
    • Tokuya Kaneda
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    STORAGE DEVICE
    • Publication number 20100220436
    • Publication date Sep 2, 2010
    • Hitachi, Ltd
    • Kenichi Miyamoto
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    DISK ARRAY SYSTEM
    • Publication number 20100002374
    • Publication date Jan 7, 2010
    • Hitachi, Ltd.
    • Tsuyoshi Sasagawa
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Storage device
    • Publication number 20080253077
    • Publication date Oct 16, 2008
    • Hitachi, Ltd.
    • Kenichi Miyamoto
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    DISK ARRAY SYSTEM
    • Publication number 20080239656
    • Publication date Oct 2, 2008
    • Hitachi, Ltd
    • Tsuyoshi Sasagawa
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Disk array system
    • Publication number 20080239655
    • Publication date Oct 2, 2008
    • Hitachi, Ltd.
    • Yuri Oyama
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Disk array system
    • Publication number 20080239657
    • Publication date Oct 2, 2008
    • Hitachi, Ltd.
    • Yuri Oyama
    • G06 - COMPUTING CALCULATING COUNTING