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Keishi KOSAKA

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Antenna device
    • Patent number 12,142,840
    • Issue date Nov 12, 2024
    • Japan Aviation Electronics Industry, Limited
    • Eiji Hankui
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna, board and communication device
    • Patent number 11,862,877
    • Issue date Jan 2, 2024
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Split ring resonator and communication device
    • Patent number 11,843,159
    • Issue date Dec 12, 2023
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna
    • Patent number D993943
    • Issue date Aug 1, 2023
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Transmission line and antenna
    • Patent number 11,658,372
    • Issue date May 23, 2023
    • NEC Corporation
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna
    • Patent number 11,626,664
    • Issue date Apr 11, 2023
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna
    • Patent number D976884
    • Issue date Jan 31, 2023
    • Japan Aviation Electronics Industry, Limited
    • Mariko Koyama
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Antenna
    • Patent number D976883
    • Issue date Jan 31, 2023
    • Japan Aviation Electronics Industry, Limited
    • Mariko Koyama
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Antenna
    • Patent number D976882
    • Issue date Jan 31, 2023
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Split-ring resonator, board and connector
    • Patent number 11,552,399
    • Issue date Jan 10, 2023
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Conductor, antenna, and communication device
    • Patent number 11,545,755
    • Issue date Jan 3, 2023
    • Japan Aviation Electronics Industry, Limited
    • Eiji Hankui
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna and communication device
    • Patent number 11,476,580
    • Issue date Oct 18, 2022
    • Japan Aviation Electronics Industry, Limited
    • Tatsuya Soma
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Phase control device, antenna system, and phase control method
    • Patent number 11,431,098
    • Issue date Aug 30, 2022
    • NEC Corporation
    • Mingqi Wu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna
    • Patent number 11,380,997
    • Issue date Jul 5, 2022
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Phase control plate
    • Patent number 11,245,195
    • Issue date Feb 8, 2022
    • NEC Corporation
    • Yoshiaki Kasahara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Polarization control plate
    • Patent number 11,095,038
    • Issue date Aug 17, 2021
    • NEC Corporation
    • Yoshiaki Kasahara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna
    • Patent number D927468
    • Issue date Aug 10, 2021
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Antenna
    • Patent number D926736
    • Issue date Aug 3, 2021
    • Japan Aviation Electronics Industry, Limited
    • Keishi Kosaka
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Wireless communication device
    • Patent number 10,784,589
    • Issue date Sep 22, 2020
    • NEC Corporation
    • Hiroshi Toyao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Multi-band antenna and radio communication device
    • Patent number 10,756,420
    • Issue date Aug 25, 2020
    • NEC Corporation
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Frequency selective surface, antenna, wireless communication device...
    • Patent number 10,651,562
    • Issue date May 12, 2020
    • NEC Corporation
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna, antenna array, and wireless communication device
    • Patent number 10,476,172
    • Issue date Nov 12, 2019
    • NEC Corporation
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna, antenna array, and radio communication apparatus
    • Patent number 10,476,132
    • Issue date Nov 12, 2019
    • NEC Corporation
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Wireless communication device
    • Patent number 10,476,150
    • Issue date Nov 12, 2019
    • NEC Corporation
    • Hiroshi Toyao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna and wireless communication device
    • Patent number 10,411,351
    • Issue date Sep 10, 2019
    • NEC Corporation
    • Tomoya Kaneko
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Multiband antenna and wireless communication device
    • Patent number 10,396,460
    • Issue date Aug 27, 2019
    • NEC Corporation
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna, array antenna, and radio communication apparatus
    • Patent number 10,367,248
    • Issue date Jul 30, 2019
    • NEC Corporation
    • Hiroshi Toyao
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Multiband antenna, multiband antenna array, and wireless communicat...
    • Patent number 10,340,609
    • Issue date Jul 2, 2019
    • NEC Corporation
    • Keishi Kosaka
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents