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Ritsu Yamamoto

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Patents Grantslast 30 patents

  • Information Patent Grant

    Contact device
    • Patent number 9,640,354
    • Issue date May 2, 2017
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Tsukasa Nishimura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contact apparatus
    • Patent number 9,640,355
    • Issue date May 2, 2017
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Hideki Enomoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contact device
    • Patent number 9,443,685
    • Issue date Sep 13, 2016
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Ritsu Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spring load adjustment structure of contact device and spring load...
    • Patent number 9,269,507
    • Issue date Feb 23, 2016
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Hideki Enomoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contact device
    • Patent number 9,064,664
    • Issue date Jun 23, 2015
    • PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    • Ritsu Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Fit structure of a housing
    • Patent number 8,448,814
    • Issue date May 28, 2013
    • Panasonic Corporation
    • Ritsu Yamamoto
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Contact device
    • Patent number 8,395,463
    • Issue date Mar 12, 2013
    • Panasonic Corporation
    • Masahiro Ito
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electromagnetic switching device
    • Patent number 7,876,183
    • Issue date Jan 25, 2011
    • Panasonic Electric Works Co., Ltd.
    • Katsuya Uruma
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contact device
    • Patent number 7,859,373
    • Issue date Dec 28, 2010
    • Panasonic Electric Works Co., Ltd.
    • Ritsu Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contact device
    • Patent number 7,046,107
    • Issue date May 16, 2006
    • Matsushita Electric Works, Ltd.
    • Ritsu Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Electromagnetic switching apparatus
    • Patent number 6,911,884
    • Issue date Jun 28, 2005
    • Matsushita Electric Works, Ltd.
    • Riichi Uotome
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Contactor
    • Patent number 6,700,466
    • Issue date Mar 2, 2004
    • Matsushita Electric Works, Ltd.
    • Ritsu Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Single pole relay switch
    • Patent number 6,075,429
    • Issue date Jun 13, 2000
    • Matsushita Electric Works, Ltd.
    • Riichi Uotome
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Sealed contact device with contact gap adjustment capability
    • Patent number 5,892,194
    • Issue date Apr 6, 1999
    • Matsushita Electric Works, Ltd.
    • Riichi Uotome
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    CONTACT DEVICE
    • Publication number 20150279601
    • Publication date Oct 1, 2015
    • Panasonic Intellectual Property Management Co., Ltd.
    • Ritsu YAMAMOTO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CONTACT APPARATUS
    • Publication number 20150255236
    • Publication date Sep 10, 2015
    • Panasonic Intellectual Property Management Co., Ltd.
    • Hideki ENOMOTO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CONTACT DEVICE
    • Publication number 20150255235
    • Publication date Sep 10, 2015
    • Panasonic Industrial Property Management Co., Ltd
    • Tsukasa Nishimura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SPRING LOAD ADJUSTMENT STRUCTURE OF CONTACT DEVICE AND SPRING LOAD...
    • Publication number 20150077202
    • Publication date Mar 19, 2015
    • Hideki Enomoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CONTACT DEVICE
    • Publication number 20130342293
    • Publication date Dec 26, 2013
    • PANASONIC CORPORATION
    • Ritsu Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CONTACT DEVICE
    • Publication number 20110032059
    • Publication date Feb 10, 2011
    • Masahiro Ito
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Fit Structure Of A Housing
    • Publication number 20100270305
    • Publication date Oct 28, 2010
    • PANASONIC ELECTRIC WORKS CO., LTD.
    • Ritsu Yamamoto
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Electromagnetic switching device
    • Publication number 20090243771
    • Publication date Oct 1, 2009
    • Matsushita Electric Works, Ltd.
    • Katsuya Uruma
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Contact Device
    • Publication number 20070241847
    • Publication date Oct 18, 2007
    • Ritsu Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Contact-point device
    • Publication number 20050190025
    • Publication date Sep 1, 2005
    • Ritsu Yamamoto
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Electromagnetic switching apparatus
    • Publication number 20040027776
    • Publication date Feb 12, 2004
    • Riichi Uotome
    • H01 - BASIC ELECTRIC ELEMENTS