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Ryoji KATSUMA

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  • Matsumoto-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Screen
    • Patent number 8,477,421
    • Issue date Jul 2, 2013
    • Seiko Epson Corporation
    • Ryoji Katsuma
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Screen
    • Patent number 8,405,905
    • Issue date Mar 26, 2013
    • Seiko Epson Corporation
    • Akira Shinbo
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Screen and projector
    • Patent number 8,228,603
    • Issue date Jul 24, 2012
    • Seiko Epson Corporation
    • Akira Shinbo
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Screen
    • Patent number 8,197,926
    • Issue date Jun 12, 2012
    • Seiko Epson Corporation
    • Akira Shinbo
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Screen unit
    • Patent number 8,169,697
    • Issue date May 1, 2012
    • Seiko Epson Corporation
    • Ryoji Katsuma
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Reflective screen
    • Patent number 8,169,700
    • Issue date May 1, 2012
    • Seiko Epson Corporation
    • Ryoji Katsuma
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Screen
    • Patent number 8,023,186
    • Issue date Sep 20, 2011
    • Seiko Epson Corporation
    • Ryoji Katsuma
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Screen and projector
    • Patent number 7,948,679
    • Issue date May 24, 2011
    • Seiko Epson Corporation
    • Akira Shinbo
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Screen
    • Patent number 7,911,694
    • Issue date Mar 22, 2011
    • Seiko Epson Corporation
    • Ryoji Katsuma
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Optical image projector and light source device for optical image p...
    • Patent number 7,188,973
    • Issue date Mar 13, 2007
    • Seiko Epson Corporation
    • Ryoji Katsuma
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Light source, and projector provided with the light source
    • Patent number 7,052,147
    • Issue date May 30, 2006
    • Seiko Epson Corporation
    • Ryoji Katsuma
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    SCREEN
    • Publication number 20130003174
    • Publication date Jan 3, 2013
    • SEIKO EPSON CORPORATION
    • Ryoji Katsuma
    • B32 - LAYERED PRODUCTS
  • Information Patent Application

    SCREEN
    • Publication number 20120229895
    • Publication date Sep 13, 2012
    • SEIKO EPSON CORPORATION
    • Akira SHINBO
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    SCREEN UNIT
    • Publication number 20110222150
    • Publication date Sep 15, 2011
    • SEIKO EPSON CORPORATION
    • Ryoji Katsuma
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    REFLECTIVE SCREEN
    • Publication number 20110194178
    • Publication date Aug 11, 2011
    • SEIKO EPSON CORPORATION
    • Ryoji KATSUMA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    SCREEN AND PROJECTOR
    • Publication number 20110188114
    • Publication date Aug 4, 2011
    • SEIKO EPSON CORPORATION
    • Akira SHINBO
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    SCREEN
    • Publication number 20110069385
    • Publication date Mar 24, 2011
    • SEIKO EPSON CORPORATION
    • Ryoji KATSUMA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    SCREEN
    • Publication number 20100157424
    • Publication date Jun 24, 2010
    • SEIKO EPSON CORPORATION
    • Ryoji KATSUMA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    SCREEN
    • Publication number 20100092734
    • Publication date Apr 15, 2010
    • SEIKO EPSON CORPORATION
    • Akira SHINBO
    • B32 - LAYERED PRODUCTS
  • Information Patent Application

    SCREEN AND PROJECTOR
    • Publication number 20090231696
    • Publication date Sep 17, 2009
    • SEIKO EPSON CORPORATION
    • Akira SHINBO
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    Light source device and projector
    • Publication number 20050190560
    • Publication date Sep 1, 2005
    • SEIKO EPSON CORPORATION
    • Ryoji Katsuma
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Light source, and projector provided with the light source
    • Publication number 20040233399
    • Publication date Nov 25, 2004
    • SEIKO EPSON CORPORATION
    • Ryoji Katsuma
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE