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Yohei Sakai

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  • Matsumoto-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Projector device
    • Patent number 11,644,737
    • Issue date May 9, 2023
    • Seiko Epson Corporation
    • Kenji Sakamoto
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Projector
    • Patent number 9,575,398
    • Issue date Feb 21, 2017
    • Seiko Epson Corporation
    • Yohei Sakai
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Projector having cooling device that supplies cooling air in two su...
    • Patent number 9,213,224
    • Issue date Dec 15, 2015
    • Seiko Epson Corporation
    • Norikazu Kadotani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Projector
    • Patent number 8,870,391
    • Issue date Oct 28, 2014
    • Seiko Epson Corporation
    • Norikazu Kadotani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Projector having a plurality of cooling fans
    • Patent number 8,696,139
    • Issue date Apr 15, 2014
    • Seiko Epson Corporation
    • Yohei Sakai
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electronic device and method for controlling the same
    • Patent number 8,142,027
    • Issue date Mar 27, 2012
    • Seiko Epson Corporation
    • Yohei Sakai
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Polarization conversion unit, polarization conversion device, and p...
    • Patent number 7,922,331
    • Issue date Apr 12, 2011
    • Seiko Epson Corporation
    • Yohei Sakai
    • G02 - OPTICS
  • Information Patent Grant

    Projector
    • Patent number 7,922,335
    • Issue date Apr 12, 2011
    • Seiko Epson Corporation
    • Yohei Sakai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Lamp for projector
    • Patent number D607126
    • Issue date Dec 29, 2009
    • Seiko Epson Corporation
    • Yohei Sakai
    • D26 - Lighting
  • Information Patent Grant

    Wind velocity measuring device and electronic apparatus
    • Patent number 7,535,711
    • Issue date May 19, 2009
    • Seiko Epson Corporation
    • Takashi Saegusa
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    PROJECTOR AND PROJECTOR DEVICE
    • Publication number 20220244626
    • Publication date Aug 4, 2022
    • SEIKO EPSON CORPORATION
    • Kenji SAKAMOTO
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DIGITAL PEN
    • Publication number 20160132136
    • Publication date May 12, 2016
    • SEIKO EPSON CORPORATION
    • Nobuyuki Otsuki
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    PROJECTOR
    • Publication number 20150268539
    • Publication date Sep 24, 2015
    • SEIKO EPSON CORPORATION
    • Yohei SAKAI
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    PROJECTOR
    • Publication number 20120033188
    • Publication date Feb 9, 2012
    • SEIKO EPSON CORPORATION
    • Norikazu Kadotani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    PROJECTOR
    • Publication number 20120013853
    • Publication date Jan 19, 2012
    • SEIKO EPSON CORPORATION
    • Norikazu Kadotani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    PROJECTOR
    • Publication number 20110242500
    • Publication date Oct 6, 2011
    • SEIKO EPSON CORPORATION
    • Yohei SAKAI
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    Polarization Conversion Unit, Polarization Conversion Device, and P...
    • Publication number 20090015794
    • Publication date Jan 15, 2009
    • SEIKO EPSON CORPORATION
    • Yohei Sakai
    • G02 - OPTICS
  • Information Patent Application

    ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE SAME
    • Publication number 20090009729
    • Publication date Jan 8, 2009
    • SEIKO EPSON CORPORATION
    • Yohei Sakai
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    Projector
    • Publication number 20080231812
    • Publication date Sep 25, 2008
    • SEIKO EPSON CORPORATION
    • Yohei Sakai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Wind velocity measuring device and electronic apparatus
    • Publication number 20070261824
    • Publication date Nov 15, 2007
    • SEIKO EPSON CORPORATION
    • Takashi Saegusa
    • G01 - MEASURING TESTING