TREA

Koichi Hadama

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  • Atsugi-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic apparatus that generates illusion of diagonal traction
    • Patent number 11,797,092
    • Issue date Oct 24, 2023
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    End face observation device
    • Patent number 10,006,831
    • Issue date Jun 26, 2018
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G02 - OPTICS
  • Information Patent Grant

    Optical signal processing device
    • Patent number 9,967,050
    • Issue date May 8, 2018
    • Nippon Telegraph and Telephone Corporation
    • Kazunori Seno
    • G02 - OPTICS
  • Information Patent Grant

    Optical signal processing device with an array waveguide coupled to...
    • Patent number 9,723,387
    • Issue date Aug 1, 2017
    • Nippon Telegraph and Telephone Corporation
    • Kenya Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Optical signal processing device
    • Patent number 9,645,321
    • Issue date May 9, 2017
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G02 - OPTICS
  • Information Patent Grant

    Optical input/output device
    • Patent number 9,588,300
    • Issue date Mar 7, 2017
    • Nippon Telegraph and Telephone Corporation
    • Mitsumasa Nakajima
    • G02 - OPTICS
  • Information Patent Grant

    Optical switch
    • Patent number 9,467,755
    • Issue date Oct 11, 2016
    • Nippon Telegraph and Telephone Corporation
    • Kenya Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Light multiplexer
    • Patent number 9,323,002
    • Issue date Apr 26, 2016
    • NTT Electronics Corporation
    • Yuji Mitsuhashi
    • G02 - OPTICS
  • Information Patent Grant

    Optical switch
    • Patent number 8,699,832
    • Issue date Apr 15, 2014
    • Nippon Telegraph and Telephone Corporation
    • Nobuaki Matsuura
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    Tactile Device Inspection System, Device, and Method
    • Publication number 20220187170
    • Publication date Jun 16, 2022
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G01 - MEASURING TESTING
  • Information Patent Application

    ELECTRONIC APPARATUS THAT GENERATES ILLUSION OF DIAGONAL TRACTION
    • Publication number 20220179490
    • Publication date Jun 9, 2022
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    END FACE OBSERVATION DEVICE
    • Publication number 20160313211
    • Publication date Oct 27, 2016
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G02 - OPTICS
  • Information Patent Application

    Optical Switch
    • Publication number 20160286288
    • Publication date Sep 29, 2016
    • Nippon Telegraph and Telephone Corporation
    • Kenya Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Optical Signal Processing Device
    • Publication number 20160197695
    • Publication date Jul 7, 2016
    • Nippon Telegraph and Telephone Corporation
    • Kazunori SENO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LIGHT INPUT/OUTPUT DEVICE
    • Publication number 20150316725
    • Publication date Nov 5, 2015
    • Nippon Telegraph and Telephone Corporation
    • Mitsumasa Nakajima
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL SIGNAL PROCESSING DEVICE
    • Publication number 20150268421
    • Publication date Sep 24, 2015
    • Nippon Telegraph and Telephone Corporation
    • Yuichi Higuchi
    • G02 - OPTICS
  • Information Patent Application

    OPTICAL SIGNAL PROCESSING APPARATUS
    • Publication number 20150237420
    • Publication date Aug 20, 2015
    • Nippon Telegraph and Telephone Corporation
    • Kenya Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    OPTICAL SWITCH
    • Publication number 20150222967
    • Publication date Aug 6, 2015
    • Nippon Telegraph and Telephone Corporation
    • Kenya Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    OPTICAL SWITCH
    • Publication number 20120093458
    • Publication date Apr 19, 2012
    • Nobuaki Matsuura
    • G02 - OPTICS
  • Information Patent Application

    LIGHT MULTIPLEXER
    • Publication number 20110129219
    • Publication date Jun 2, 2011
    • NTT Electronics and Corporation
    • Yuji Mitsuhashi
    • G02 - OPTICS