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the interaction circuit being a helix or derived from a helix

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  • H01J23/50
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HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J23/00Details of transit-time tubes of the types covered by group H01J25/00

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H01J23/50the interaction circuit being a helix or derived from a helix
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Traveling wave tube
    • Patent number 7,898,181
    • Issue date Mar 1, 2011
    • Netcomsec Co., Ltd.
    • Kazuhito Soga
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Travelling wave tube provided with an impervious coupling device be...
    • Patent number 4,985,659
    • Issue date Jan 15, 1991
    • Thomson-CSF
    • Jacques Tikes
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Travelling wave tube with coupling device between its delay line an...
    • Patent number 4,970,432
    • Issue date Nov 13, 1990
    • Thomson-CSF
    • Jacques Tikes
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Microwave tube with improved output signal extracting structure
    • Patent number 4,682,076
    • Issue date Jul 21, 1987
    • NEC Corporation
    • Takao Kageyama
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Travelling wave or like tubes
    • Patent number 4,585,973
    • Issue date Apr 29, 1986
    • English Electric Valve Company Limited
    • Ronald L. Finch
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    High efficiency split flow turbine for compressible fluids
    • Patent number 4,165,949
    • Issue date Aug 28, 1979
    • Groupe Europeen pour la Technique des Turbines a Vapeur G.E.T.T.
    • Gilbert Riollet
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Traveling wave tube having a helix delay line
    • Patent number 4,035,687
    • Issue date Jul 12, 1977
    • Siemens Aktiengesellschaft
    • Franz Gross
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3735188
    • Patent number 3,735,188
    • Issue date May 22, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3729644
    • Patent number 3,729,644
    • Issue date Apr 24, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3707647
    • Patent number 3,707,647
    • Issue date Dec 26, 1972
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3535580
    • Patent number 3,535,580
    • Issue date Oct 20, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3514725
    • Patent number 3,514,725
    • Issue date May 26, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3510720
    • Patent number 3,510,720
    • Issue date May 5, 1970
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3421120
    • Patent number 3,421,120
    • Issue date Jan 7, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3400295
    • Patent number 3,400,295
    • Issue date Sep 3, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3370197
    • Patent number 3,370,197
    • Issue date Feb 20, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3317780
    • Patent number 3,317,780
    • Issue date May 2, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3280362
    • Patent number 3,280,362
    • Issue date Oct 18, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3263194
    • Patent number 3,263,194
    • Issue date Jul 26, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3227913
    • Patent number 3,227,913
    • Issue date Jan 4, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3195006
    • Patent number 3,195,006
    • Issue date Jul 13, 1965
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3181090
    • Patent number 3,181,090
    • Issue date Apr 27, 1965
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3020498
    • Patent number 3,020,498
    • Issue date Feb 6, 1962
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3007076
    • Patent number 3,007,076
    • Issue date Oct 31, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3003078
    • Patent number 3,003,078
    • Issue date Oct 3, 1961
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2987644
    • Patent number 2,987,644
    • Issue date Jun 6, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2984762
    • Patent number 2,984,762
    • Issue date May 16, 1961
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2955227
    • Patent number 2,955,227
    • Issue date Oct 4, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2955224
    • Patent number 2,955,224
    • Issue date Oct 4, 1960
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2953709
    • Patent number 2,953,709
    • Issue date Sep 20, 1960
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    TRAVELING WAVE TUBE
    • Publication number 20090009086
    • Publication date Jan 8, 2009
    • NEC Microwave Tube, Ltd.
    • Kazuhito SOGA
    • H01 - BASIC ELECTRIC ELEMENTS