TREA

Tsuneo Tsukahara

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wireless communication system, wireless transmitter, wireless recei...
    • Patent number 7,545,845
    • Issue date Jun 9, 2009
    • Nippon Telegraph and Telephone Corporation
    • Kenji Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Spread-spectrum demodulator
    • Patent number 7,430,233
    • Issue date Sep 30, 2008
    • Nippon Telephone and Telegraph Corporation
    • Kenji Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Mixer circuit
    • Patent number 6,871,057
    • Issue date Mar 22, 2005
    • Nippon Telegraph and Telephone Corporation
    • Mamoru Ugajin
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Phase locked loop
    • Patent number 6,759,912
    • Issue date Jul 6, 2004
    • Nippon Telegraph and Telephone Corporation
    • Akihiro Yamagishi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Transconductance amplifier, filter using the transconductance ampli...
    • Patent number 6,549,074
    • Issue date Apr 15, 2003
    • Nippon Telegraph and Telephone Corporation
    • Mamoru Ugajin
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Image-rejection receiver
    • Patent number 6,516,186
    • Issue date Feb 4, 2003
    • Nippon Telegraph and Telephone Corporation
    • Akihiro Yamagishi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Quadrature signal generation system
    • Patent number 6,369,633
    • Issue date Apr 9, 2002
    • Nippon Telegraph and Telephone Corporation
    • Tsuneo Tsukahara
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Complementary tuned mixer
    • Patent number 6,239,645
    • Issue date May 29, 2001
    • Nippon Telegraph and Telephone Corporation
    • Tsuneo Tsukahara
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Fractional-N frequency divider system
    • Patent number 5,714,896
    • Issue date Feb 3, 1998
    • Nippon Telegraph & Telephone Corporation
    • Tadao Nakagawa
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Wireless communication system, wireless transmitter, wireless recei...
    • Publication number 20050249264
    • Publication date Nov 10, 2005
    • NIPPON TELEGRAPH AND TELEPHONE CORPOATION
    • Kenji Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Two-modulus prescaler circuit
    • Publication number 20050116258
    • Publication date Jun 2, 2005
    • Akihiro Yamagishi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Spread-spectrum demodulator
    • Publication number 20040156452
    • Publication date Aug 12, 2004
    • Kenji Suzuki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Phase locked loop
    • Publication number 20030146794
    • Publication date Aug 7, 2003
    • Nippon Telegraph and Telephone Corporation
    • Akihiro Yamagishi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Transconductance amplifier, filter using the transconductance ampli...
    • Publication number 20020067208
    • Publication date Jun 6, 2002
    • Nippon Telegraph and Telephone Corporation
    • Mamoru Ugajin
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Mixer circuit
    • Publication number 20010021645
    • Publication date Sep 13, 2001
    • Nippon Telegraph and Telephone Corporation
    • Mamoru Ugajin
    • H03 - BASIC ELECTRONIC CIRCUITRY