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Hirofumi Sakamoto

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plasma display device
    • Patent number 8,149,184
    • Issue date Apr 3, 2012
    • Hitachi, Ltd.
    • Hidenao Kubota
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Plasma display device
    • Patent number 7,515,118
    • Issue date Apr 7, 2009
    • Hitachi, Ltd.
    • Hidenao Kubota
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Image display apparatus
    • Patent number 7,369,183
    • Issue date May 6, 2008
    • Hitachi, Ltd.
    • Naoya Oka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Image display apparatus, display unit driver and image display meth...
    • Patent number 7,333,081
    • Issue date Feb 19, 2008
    • Hiroshi Aoki
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Plasma display device
    • Patent number 7,113,153
    • Issue date Sep 26, 2006
    • Hitachi, Ltd.
    • Hidenao Kubota
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Off-lane alarm apparatus
    • Patent number 5,689,249
    • Issue date Nov 18, 1997
    • Isuzu Motors Limited
    • Hirofumi Sakamoto
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    PLASMA DISPLAY DEVICE
    • Publication number 20090167643
    • Publication date Jul 2, 2009
    • Hitachi, Ltd
    • Hidenao Kubota
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Application

    Plasma display device
    • Publication number 20060232514
    • Publication date Oct 19, 2006
    • Hitachi, Ltd
    • Hidenao Kubota
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Application

    Image display apparatus
    • Publication number 20060061842
    • Publication date Mar 23, 2006
    • Naoya Oka
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Image display apparatus, display unit driver and image display meth...
    • Publication number 20050057486
    • Publication date Mar 17, 2005
    • Hiroshi Aoki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Plasma display device
    • Publication number 20030011539
    • Publication date Jan 16, 2003
    • Hitachi, Ltd
    • Hidenao Kubota
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS