TREA

Takahiko Sakai

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Inner focus lens
    • Patent number 9,841,608
    • Issue date Dec 12, 2017
    • Tamron Co., Ltd.
    • Takahiko Sakai
    • G02 - OPTICS
  • Information Patent Grant

    Inner focus lens
    • Patent number 9,678,305
    • Issue date Jun 13, 2017
    • Tamron Co., Ltd.
    • Takahiko Sakai
    • G02 - OPTICS
  • Information Patent Grant

    Optical system and image pickup apparatus
    • Patent number 9,645,353
    • Issue date May 9, 2017
    • Tamron Co., Ltd.
    • Hisayuki Yamanaka
    • G02 - OPTICS
  • Information Patent Grant

    Fixed focus lens
    • Patent number 8,908,297
    • Issue date Dec 9, 2014
    • Tamron Co., Ltd.
    • Nobuyuki Adachi
    • G02 - OPTICS
  • Information Patent Grant

    Internal focusing lens
    • Patent number 8,605,363
    • Issue date Dec 10, 2013
    • Sony Corporation
    • Takahiko Sakai
    • G02 - OPTICS
  • Information Patent Grant

    Fixed focus lens
    • Patent number 8,587,879
    • Issue date Nov 19, 2013
    • Tamron Co., Ltd.
    • Nobuyuki Adachi
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    ZOOM LENS AND IMAGING DEVICE
    • Publication number 20240295723
    • Publication date Sep 5, 2024
    • Tamron Co., Ltd.
    • Takahiko SAKAI
    • G02 - OPTICS
  • Information Patent Application

    Optical System and Image Pickup Apparatus
    • Publication number 20160252706
    • Publication date Sep 1, 2016
    • Tamron Co., Ltd.
    • Hisayuki Yamanaka
    • G02 - OPTICS
  • Information Patent Application

    INNER FOCUS LENS
    • Publication number 20150248016
    • Publication date Sep 3, 2015
    • Tamron Co., Ltd.
    • Takahiko SAKAI
    • G02 - OPTICS
  • Information Patent Application

    INNER FOCUS LENS
    • Publication number 20150247989
    • Publication date Sep 3, 2015
    • Tamron Co., Ltd.
    • Takahiko SAKAI
    • G02 - OPTICS
  • Information Patent Application

    FIXED FOCUS LENS
    • Publication number 20140049845
    • Publication date Feb 20, 2014
    • Tamron Co., Ltd.
    • Nobuyuki ADACHI
    • G02 - OPTICS
  • Information Patent Application

    INTERNAL FOCUSING LENS
    • Publication number 20120194924
    • Publication date Aug 2, 2012
    • TAMRON CO., LTD.
    • Takahiko SAKAI
    • G02 - OPTICS
  • Information Patent Application

    FIXED FOCUS LENS
    • Publication number 20120162787
    • Publication date Jun 28, 2012
    • TAMRON CO., LTD.
    • Nobuyuki ADACHI
    • G02 - OPTICS