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Hirofumi Koizumi

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    On/off detecting buckle switch
    • Patent number 9,616,847
    • Issue date Apr 11, 2017
    • Hosiden Corporation
    • Kenjiro Desaki
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    On/off detecting buckle switch
    • Patent number 9,266,499
    • Issue date Feb 23, 2016
    • Hosiden Corporation
    • Kenjiro Desaki
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Slide switch
    • Patent number 8,952,279
    • Issue date Feb 10, 2015
    • Hosiden Corporation
    • Satoshi Yamanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Slide switch
    • Patent number 8,952,283
    • Issue date Feb 10, 2015
    • Hosiden Corporation
    • Satoshi Yamanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Slide switch
    • Patent number 8,921,723
    • Issue date Dec 30, 2014
    • Hosiden Corporation
    • Satoshi Yamanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Push-button switch
    • Patent number 8,362,382
    • Issue date Jan 29, 2013
    • Hosiden Corporation
    • Hirofumi Koizumi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Slide switch for buckle apparatus
    • Patent number 8,327,512
    • Issue date Dec 11, 2012
    • Hosiden Corporation
    • Satoshi Yamanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Compound operation input device
    • Patent number 7,498,527
    • Issue date Mar 3, 2009
    • Hosiden Corporation
    • Hirofumi Koizumi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Movable contact for a push-on switch, and push-on switch
    • Patent number 6,951,991
    • Issue date Oct 4, 2005
    • Hosident Corporation
    • Makoto Asada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Buckle with non-contact switch
    • Patent number 6,381,815
    • Issue date May 7, 2002
    • Takata Corporation
    • Yutaka Yamaguchi
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    ON/OFF DETECTING BUCKLE SWITCH
    • Publication number 20150217723
    • Publication date Aug 6, 2015
    • HOSIDEN CORPORATION
    • Kenjiro Desaki
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    ON/OFF DETECTING BUCKLE SWITCH
    • Publication number 20140262706
    • Publication date Sep 18, 2014
    • Kenjiro Desaki
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Slide Switch
    • Publication number 20130175152
    • Publication date Jul 11, 2013
    • HOSIDEN CORPORATION
    • Satoshi Yamanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Slide Switch
    • Publication number 20130175145
    • Publication date Jul 11, 2013
    • HOSIDEN CORPORATION
    • Satoshi Yamanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Slide Switch
    • Publication number 20130175146
    • Publication date Jul 11, 2013
    • HOSIDEN CORPORATION
    • Satoshi Yamanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Slide Switch for Buckle Apparatus
    • Publication number 20110067209
    • Publication date Mar 24, 2011
    • HOSIDEN CORPORATION
    • Satoshi Yamanaka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Push-button switch
    • Publication number 20090229958
    • Publication date Sep 17, 2009
    • HOSIDEN CORPORATION
    • Hirofumi Koizumi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Compound operation input device
    • Publication number 20080041709
    • Publication date Feb 21, 2008
    • HOSIDEN CORPORATION
    • Hirofumi Koizumi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    MOVABLE CONTACT FOR A PUSH-ON SWITCH, AND PUSH-ON SWITCH
    • Publication number 20050082156
    • Publication date Apr 21, 2005
    • HOSIDEN CORPORATION
    • Makoto Asada
    • H01 - BASIC ELECTRIC ELEMENTS