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Ryotaro Nakagawa

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  • Daito-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Laser holder and optical pickup provided with same
    • Patent number 8,737,186
    • Issue date May 27, 2014
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical disc apparatus
    • Patent number 7,778,130
    • Issue date Aug 17, 2010
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Method for designing an optical pickup
    • Patent number 7,680,016
    • Issue date Mar 16, 2010
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical head and optical disc device provided therewith
    • Patent number 7,668,048
    • Issue date Feb 23, 2010
    • Funai Electric Co., Ltd.
    • Tetsuo Nishidate
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical pickup
    • Patent number 7,397,733
    • Issue date Jul 8, 2008
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical pickup
    • Patent number 7,274,633
    • Issue date Sep 25, 2007
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical disc apparatus
    • Patent number 7,254,097
    • Issue date Aug 7, 2007
    • Funai Electric Co., Ltd.
    • Toyoshi Nogami
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Objective lens unit
    • Patent number 7,065,008
    • Issue date Jun 20, 2006
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical pickup device
    • Patent number 6,762,891
    • Issue date Jul 13, 2004
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    Laser Holder and Optical Pickup Provided With Same
    • Publication number 20120113490
    • Publication date May 10, 2012
    • Ryotaro NAKAGAWA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical Pickup Device
    • Publication number 20080259771
    • Publication date Oct 23, 2008
    • Funai Electric Co., Ltd.
    • Ryotaro NAKAGAWA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical Disc Apparatus
    • Publication number 20080089192
    • Publication date Apr 17, 2008
    • Funai Electric Co., Ltd.
    • Ryotaro NAKAGAWA
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical pickup
    • Publication number 20070206450
    • Publication date Sep 6, 2007
    • FUNAI ELECTRIC CO., LTD.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical pickup
    • Publication number 20070104076
    • Publication date May 10, 2007
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Method for designing an optical pickup
    • Publication number 20070002717
    • Publication date Jan 4, 2007
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical pickup
    • Publication number 20050243662
    • Publication date Nov 3, 2005
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical disc apparatus
    • Publication number 20050013214
    • Publication date Jan 20, 2005
    • Toyoshi Nogami
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical pickup
    • Publication number 20040218516
    • Publication date Nov 4, 2004
    • Funai Electric Co. Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Optical pickup device
    • Publication number 20030231411
    • Publication date Dec 18, 2003
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Objective lens unit
    • Publication number 20030202435
    • Publication date Oct 30, 2003
    • Funai Electric Co., Ltd.
    • Ryotaro Nakagawa
    • G11 - INFORMATION STORAGE