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Takeshi HIRAKAWA

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Patents Grantslast 30 patents

  • Information Patent Grant

    Connector with exposed conductive contact
    • Patent number 10,985,505
    • Issue date Apr 20, 2021
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Connector including plate-shaped conductor and casing with through...
    • Patent number 10,931,065
    • Issue date Feb 23, 2021
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrical connector device
    • Patent number 10,897,097
    • Issue date Jan 19, 2021
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric connector and connector device
    • Patent number 10,700,458
    • Issue date Jun 30, 2020
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Connector device
    • Patent number 10,230,185
    • Issue date Mar 12, 2019
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Substrate-connecting electric connector and substrate-connecting el...
    • Patent number 9,601,849
    • Issue date Mar 21, 2017
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrical coaxial connector
    • Patent number 9,257,761
    • Issue date Feb 9, 2016
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrical coaxial connector
    • Patent number 9,203,196
    • Issue date Dec 1, 2015
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Switch-equipped coaxial connector
    • Patent number 8,986,043
    • Issue date Mar 24, 2015
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Circuit-terminal connecting device
    • Patent number 8,968,005
    • Issue date Mar 3, 2015
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Electrical connector and electrical connector assembly
    • Patent number 8,790,121
    • Issue date Jul 29, 2014
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Switch-equipped coaxial connector
    • Patent number 8,678,859
    • Issue date Mar 25, 2014
    • Dai-Ichi Seiko Co, Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric connector
    • Patent number D700891
    • Issue date Mar 11, 2014
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Electrical connector and electrical connector assembly
    • Patent number 8,628,355
    • Issue date Jan 14, 2014
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electrical connector and electrical connector assembly
    • Patent number 8,550,837
    • Issue date Oct 8, 2013
    • Dai-Ichi Seiko Co., Ltd.
    • Tetsuya Tagawa
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Switch-equipped coaxial connector
    • Patent number 8,535,074
    • Issue date Sep 17, 2013
    • Dai-Ichi Seiko Co.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electric connector
    • Patent number D683313
    • Issue date May 28, 2013
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Electric connector
    • Patent number D680494
    • Issue date Apr 23, 2013
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Electric connector
    • Patent number D673499
    • Issue date Jan 1, 2013
    • Dai-Ichi Seiko Co., Ltd.
    • Takeshi Hirakawa
    • D13 - Equipment for production, distribution, or transformation of energy

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRICAL CONNECTOR AND ELECTRICAL CONNECTOR DEVICE
    • Publication number 20220045448
    • Publication date Feb 10, 2022
    • I-PEX Inc.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRICAL CONNECTOR DEVICE
    • Publication number 20200220287
    • Publication date Jul 9, 2020
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CONNECTOR
    • Publication number 20200161813
    • Publication date May 21, 2020
    • DAI-ICHI SEIKO CO.,LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CONNECTOR
    • Publication number 20200161812
    • Publication date May 21, 2020
    • DAI-ICHI SEIKO CO.,LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRICAL CONNECTOR
    • Publication number 20180226736
    • Publication date Aug 9, 2018
    • DAI-ICHI SEIKO CO.,LTD.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CONNECTOR DEVICE
    • Publication number 20180175525
    • Publication date Jun 21, 2018
    • DAI-ICHI SEIKO CO.,LTD.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRIC CONNECTOR AND CONNECTOR DEVICE
    • Publication number 20180069331
    • Publication date Mar 8, 2018
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SUBSTRATE-CONNECTING ELECTRIC CONNECTOR AND SUBSTRATE-CONNECTING EL...
    • Publication number 20160141783
    • Publication date May 19, 2016
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRICAL COAXIAL CONNECTOR
    • Publication number 20150104974
    • Publication date Apr 16, 2015
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRICAL COAXIAL CONNECTOR
    • Publication number 20150072556
    • Publication date Mar 12, 2015
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SWITCH-EQUIPPED COAXIAL CONNECTOR
    • Publication number 20130224992
    • Publication date Aug 29, 2013
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CIRCUIT-TERMINAL CONNECTING DEVICE
    • Publication number 20130137281
    • Publication date May 30, 2013
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ELECTRICAL CONNECTOR AND ELECTRICAL CONNECTOR ASSEMBLY
    • Publication number 20130040505
    • Publication date Feb 14, 2013
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi Hirakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRICAL CONNECTOR AND ELECTRICAL CONNECTOR ASSEMBLY
    • Publication number 20130012066
    • Publication date Jan 10, 2013
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SWITCH-EQUIPPED COAXIAL CONNECTOR
    • Publication number 20120289084
    • Publication date Nov 15, 2012
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SWITCH-EQUIPPED COAXIAL CONNECTOR
    • Publication number 20120289085
    • Publication date Nov 15, 2012
    • DAI-ICHI SEIKO CO., LTD.
    • Takeshi HIRAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ELECTRICAL CONNECTOR AND ELECTRICAL CONNECTOR ASSEMBLY
    • Publication number 20120225575
    • Publication date Sep 6, 2012
    • DAI-ICHI SEIKO CO., LTD.
    • Tetsuya TAGAWA
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR