TREA

Keiji Tsunoda

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  • Kokubunji, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Combined radio receiver and digital audio disc player
    • Patent number D459336
    • Issue date Jun 25, 2002
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Magnetic disc memory
    • Patent number D436596
    • Issue date Jan 23, 2001
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined digital audio disc player, amplifier and tuner
    • Patent number D434749
    • Issue date Dec 5, 2000
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Digital audio disc player
    • Patent number D408407
    • Issue date Apr 20, 1999
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Digital audio disc player
    • Patent number D408408
    • Issue date Apr 20, 1999
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Optical disc player
    • Patent number D391571
    • Issue date Mar 3, 1998
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined audio mixer and tape recorder
    • Patent number D367052
    • Issue date Feb 13, 1996
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Digital audio tape recorder
    • Patent number D362666
    • Issue date Sep 26, 1995
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Digital audio disc player
    • Patent number D340716
    • Issue date Oct 26, 1993
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Streaming cassette tape drive
    • Patent number D338671
    • Issue date Aug 24, 1993
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Air cleaner
    • Patent number D338520
    • Issue date Aug 17, 1993
    • Teac Corporation
    • Masafumi Ito
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Synchronization controller for electric machines
    • Patent number D337753
    • Issue date Jul 27, 1993
    • TEAC Corporation
    • Masafumi Ito
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Combined disk drive and streaming cassette tape drive
    • Patent number D331574
    • Issue date Dec 8, 1992
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined audio mixer and tape recorder
    • Patent number D325910
    • Issue date May 5, 1992
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Audio mixer
    • Patent number D325737
    • Issue date Apr 28, 1992
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Audio mixer
    • Patent number D325580
    • Issue date Apr 21, 1992
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Audio mixer
    • Patent number D325383
    • Issue date Apr 14, 1992
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined audio mixer and tape recorder
    • Patent number D325204
    • Issue date Apr 7, 1992
    • TEAC Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Streaming cassette tape drive
    • Patent number D322964
    • Issue date Jan 7, 1992
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Streaming cassette tape drive
    • Patent number D322779
    • Issue date Dec 31, 1991
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Streaming cassette tape drive
    • Patent number D322600
    • Issue date Dec 24, 1991
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Streaming cassette tape drive
    • Patent number D322431
    • Issue date Dec 17, 1991
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Streaming cassette tape drive
    • Patent number D322247
    • Issue date Dec 10, 1991
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined tape player and tuner
    • Patent number D319236
    • Issue date Aug 20, 1991
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Combined tape player and tuner
    • Patent number D318665
    • Issue date Jul 30, 1991
    • Teac Corporation
    • Masafumi Ito
    • D14 - Recording, communication, or information retrieval equipment