TREA

Katsumi Tobita

Follow

Person

  • Soma, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    AFT circuit for CATV receiver system
    • Patent number 4,855,835
    • Issue date Aug 8, 1989
    • Alps Electric Co., Ltd.
    • Katsumi Tobita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Subscription television system
    • Patent number 4,771,457
    • Issue date Sep 13, 1988
    • Alps Electric Co., Ltd.
    • Katsumi Tobita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Demodulating system for multivoice system
    • Patent number 4,723,287
    • Issue date Feb 2, 1988
    • Alps Electric Co., Ltd.
    • Katsumi Tobita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    CATV converter having phase locked loop for sound carrier wave freq...
    • Patent number 4,692,803
    • Issue date Sep 8, 1987
    • Alps Electric Co., Ltd.
    • Katsumi Tobita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Pay television channel selector
    • Patent number 4,517,595
    • Issue date May 14, 1985
    • Alps Electric Co., Ltd.
    • Katsumi Tobita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    CATV selection device
    • Patent number 4,514,757
    • Issue date Apr 30, 1985
    • Alps Electric Co., Ltd.
    • Tasuku Noji
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Tuning system
    • Patent number 4,352,205
    • Issue date Sep 28, 1982
    • Alps Electric Company, Ltd.
    • Masaki Kato
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Quartz crystal oscillator
    • Patent number 4,274,066
    • Issue date Jun 16, 1981
    • Alps Electric Co., Ltd.
    • Akiyuki Yoshisato
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Quartz crystal oscillator
    • Patent number 4,224,580
    • Issue date Sep 23, 1980
    • Alps Electric Co., Ltd.
    • Akiyuki Yoshisato
    • H03 - BASIC ELECTRONIC CIRCUITRY