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Seiji IMAGAWA

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Head-mounted display device
    • Patent number 10,877,298
    • Issue date Dec 29, 2020
    • MAXELL, LTD.
    • Seiji Imagawa
    • G02 - OPTICS
  • Information Patent Grant

    Head-mounted display system and operating method for head-mounted d...
    • Patent number 10,613,826
    • Issue date Apr 7, 2020
    • MAXELL, LTD.
    • Seiji Imagawa
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Optical disc device
    • Patent number 8,634,281
    • Issue date Jan 21, 2014
    • Hitachi-LG Data Storage, Inc.
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical disc apparatus
    • Patent number 8,559,285
    • Issue date Oct 15, 2013
    • Hitachi Consumer Electronics Co., Ltd.
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical disk device
    • Patent number 8,547,809
    • Issue date Oct 1, 2013
    • Hitachi Consumer Electronics Co., Ltd.
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical disc device
    • Patent number 8,325,574
    • Issue date Dec 4, 2012
    • Hitachi, Ltd.
    • Takeyoshi Kataoka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical disc drive
    • Patent number 8,223,602
    • Issue date Jul 17, 2012
    • Hitachi, Ltd.
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical disk drive
    • Patent number 7,933,175
    • Issue date Apr 26, 2011
    • Hitachi, Ltd.
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    Ranging Sensor Calibration System and Ranging Sensor Calibration Me...
    • Publication number 20230103773
    • Publication date Apr 6, 2023
    • Hitachi, Ltd
    • Seiji IMAGAWA
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    HEAD-MOUNTED DISPLAY DEVICE
    • Publication number 20180173017
    • Publication date Jun 21, 2018
    • Maxell, Ltd.
    • Seiji IMAGAWA
    • G02 - OPTICS
  • Information Patent Application

    HEAD-MOUNTED DISPLAY SYSTEM AND OPERATING METHOD FOR HEAD-MOUNTED D...
    • Publication number 20180011687
    • Publication date Jan 11, 2018
    • Hitachi Maxell, Ltd.
    • Seiji IMAGAWA
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    OPTICAL DISC APPARATUS
    • Publication number 20130064058
    • Publication date Mar 14, 2013
    • Hitachi Consumer Electronics Co., Ltd.
    • Seiji IMAGAWA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    OPTICAL DISC DEVICE
    • Publication number 20120230171
    • Publication date Sep 13, 2012
    • Hitachi Consumer Electronics Co., Ltd.
    • Seiji IMAGAWA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    OPTICAL DISK DEVICE
    • Publication number 20090296544
    • Publication date Dec 3, 2009
    • Seiji IMAGAWA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    OPTICAL DISC DEVICE
    • Publication number 20090207708
    • Publication date Aug 20, 2009
    • Takeyoshi KATAOKA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical disc drive
    • Publication number 20070274166
    • Publication date Nov 29, 2007
    • Hitachi, Ltd
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical disk drive
    • Publication number 20070177469
    • Publication date Aug 2, 2007
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical disk device
    • Publication number 20070008836
    • Publication date Jan 11, 2007
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Information recording apparatus, information reproducing apparatus,...
    • Publication number 20060126466
    • Publication date Jun 15, 2006
    • Seiji Imagawa
    • G11 - INFORMATION STORAGE