TREA

Audio-frequency transformers or mutual inductances

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Industry

  • CPC
  • H01F19/02
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Parent Industries

HELECTRICITY H01Electric elements H01FMAGNETS INDUCTANCES TRANSFORMERS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES H01F19/00Fixed transformers or mutual inductances of the signal type

Current Industry

H01F19/02Audio-frequency transformers or mutual inductances
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Adjustable compact line output converter with amplifier trigger
    • Patent number 10,505,510
    • Issue date Dec 10, 2019
    • Larry Vansickel
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Compact noise suppression circuit for small speakers
    • Patent number 9,258,640
    • Issue date Feb 9, 2016
    • Vladimir Walter Kukurudza
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Planar audio amplifier output inductor with current sense
    • Patent number 8,243,960
    • Issue date Aug 14, 2012
    • Bose Corporation
    • Michael Nussbaum
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Transmission coil system and remote control for a hearing aid
    • Patent number 7,277,553
    • Issue date Oct 2, 2007
    • Siemens Audiologische Technik GmbH
    • Jürgen Reithinger
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    RF high power, high frequency, non-integer turns ratio bandpass aut...
    • Patent number 5,309,120
    • Issue date May 3, 1994
    • Harris Corporation
    • Floyd A. Koontz
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Double insulated transformer of the coaxial type and method of asse...
    • Patent number 5,200,731
    • Issue date Apr 6, 1993
    • Musashino Tuko Co., Ltd.
    • Yoshiro Tochio
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Single bobbin transformer having multiple delink windings and metho...
    • Patent number 4,473,811
    • Issue date Sep 25, 1984
    • General Instrument Corporation
    • George L. Schauble
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Method of making a fly back transformer
    • Patent number 4,403,403
    • Issue date Sep 13, 1983
    • Sony Corporation
    • Mitsuru Hosoya
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Transformer with impedance matching means
    • Patent number 4,400,675
    • Issue date Aug 23, 1983
    • Westinghouse Electric Corp.
    • Michael W. Thomas
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Subminiature audio transformer
    • Patent number 4,315,232
    • Issue date Feb 9, 1982
    • Henry Spoldi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Output transformer
    • Patent number 4,311,977
    • Issue date Jan 19, 1982
    • Continental Electronics Mfg. Co.
    • Kenneth Owen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Audio-frequency injection transformers for ripple control
    • Patent number 4,156,221
    • Issue date May 22, 1979
    • Messwandler-Bau GmbH
    • Otto Graul
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Device for the contactless transmission of electrical energy, in pa...
    • Patent number 4,145,968
    • Issue date Mar 27, 1979
    • Compagnie de Signaux et d'Entreprises Electriques
    • Denys C. Klein
    • F41 - WEAPONS
  • Information Patent Grant

    3881149
    • Patent number 3,881,149
    • Issue date Apr 29, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3541428
    • Patent number 3,541,428
    • Issue date Nov 17, 1970
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3275966
    • Patent number 3,275,966
    • Issue date Sep 27, 1966
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3201854
    • Patent number 3,201,854
    • Issue date Aug 24, 1965
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3061804
    • Patent number 3,061,804
    • Issue date Oct 30, 1962
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2900612
    • Patent number 2,900,612
    • Issue date Aug 18, 1959
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2815408
    • Patent number 2,815,408
    • Issue date Dec 3, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2798202
    • Patent number 2,798,202
    • Issue date Jul 2, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2713667
    • Patent number 2,713,667
    • Issue date Jul 19, 1955
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2709721
    • Patent number 2,709,721
    • Issue date May 31, 1955
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2707773
    • Patent number 2,707,773
    • Issue date May 3, 1955
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2542915
    • Patent number 2,542,915
    • Issue date Feb 20, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2541797
    • Patent number 2,541,797
    • Issue date Feb 13, 1951
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2462106
    • Patent number 2,462,106
    • Issue date Feb 22, 1949
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2459023
    • Patent number 2,459,023
    • Issue date Jan 11, 1949
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2430738
    • Patent number 2,430,738
    • Issue date Nov 11, 1947
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2379664
    • Patent number 2,379,664
    • Issue date Jul 3, 1945
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents