TREA

Takashi HATANAKA

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  • Pathumthani, TH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spectacle lens
    • Patent number 12,019,312
    • Issue date Jun 25, 2024
    • HOYA LENS THAILAND LTD.
    • Chi Ho To
    • G02 - OPTICS
  • Information Patent Grant

    Spectacle lens
    • Patent number 11,726,348
    • Issue date Aug 15, 2023
    • The Hong Kong Polytechnic University
    • Chi Ho To
    • G02 - OPTICS
  • Information Patent Grant

    Spectacle lens
    • Patent number 11,397,335
    • Issue date Jul 26, 2022
    • HOYA LENS THAILAND LTD.
    • Chi Ho To
    • G02 - OPTICS
  • Information Patent Grant

    Spectacle lens and method of using a spectacle lens
    • Patent number 11,029,540
    • Issue date Jun 8, 2021
    • HOYA LENS THAILAND LTD.
    • Chi Ho To
    • G02 - OPTICS
  • Information Patent Grant

    Spectacle lens
    • Patent number 10,268,050
    • Issue date Apr 23, 2019
    • HOYA LENS THAILAND LTD.
    • Chi Ho To
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    SPECTACLE LENS
    • Publication number 20230341708
    • Publication date Oct 26, 2023
    • Hoya Lens Thailand Ltd.
    • Chi Ho TO
    • G02 - OPTICS
  • Information Patent Application

    SPECTACLE LENS
    • Publication number 20220317477
    • Publication date Oct 6, 2022
    • Hoya Lens Thailand Ltd.
    • Chi Ho TO
    • G02 - OPTICS
  • Information Patent Application

    SPECTACLE LENS
    • Publication number 20200159044
    • Publication date May 21, 2020
    • Chi Ho TO
    • G02 - OPTICS
  • Information Patent Application

    SPECTACLE LENS
    • Publication number 20190212580
    • Publication date Jul 11, 2019
    • Hoya Lens Thailand Ltd.
    • Chi Ho TO
    • G02 - OPTICS
  • Information Patent Application

    Spectacle Lens
    • Publication number 20170131567
    • Publication date May 11, 2017
    • Hoya Lens Thailand Ltd.
    • Chi Ho TO
    • G02 - OPTICS