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Akio Yokoyama

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Patents Grantslast 30 patents

  • Information Patent Grant

    Actuator driver
    • Patent number 8,912,740
    • Issue date Dec 16, 2014
    • Panasonic Corporation
    • Akira Kawabe
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Fully differential amplification device
    • Patent number 7,528,659
    • Issue date May 5, 2009
    • Panasonic Corporation
    • Akio Yokoyama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Current addition type digital analog converter
    • Patent number 7,474,244
    • Issue date Jan 6, 2009
    • Panasonic Corporation
    • Akira Kawabe
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Passive polyphase filter
    • Patent number 7,405,636
    • Issue date Jul 29, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Masayuki Ozasa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Differential amplifier and operational amplifier
    • Patent number 7,271,652
    • Issue date Sep 18, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Masayuki Ozasa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Differential amplifier and operational amplifier
    • Patent number 7,215,195
    • Issue date May 8, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Masayuki Ozasa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Differential amplifier and calculation amplifier
    • Patent number 7,116,170
    • Issue date Oct 3, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Masayuki Ozasa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Delta sigma modulating apparatus
    • Patent number 7,084,797
    • Issue date Aug 1, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Akio Yokoyama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Cascade delta-sigma modulator
    • Patent number 6,954,161
    • Issue date Oct 11, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Fumihito Inukai
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Filter
    • Patent number 6,930,544
    • Issue date Aug 16, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Akio Yokoyama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Automatic filter tuning control system
    • Patent number 6,512,414
    • Issue date Jan 28, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Akio Yokoyama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Variable impedance circuit
    • Patent number 5,012,201
    • Issue date Apr 30, 1991
    • Matsushita Electric Industrial Co., Ltd.
    • Yoichi Morita
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

  • Information Patent Application

    ACTUATOR DRIVER
    • Publication number 20130285579
    • Publication date Oct 31, 2013
    • AKIRA KAWABE
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    FULLY DIFFERENTIAL AMPLIFICATION DEVICE
    • Publication number 20080157873
    • Publication date Jul 3, 2008
    • Matsushita Electric Industrial Co., Ltd.
    • Akio Yokoyama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Current addition type digital analog converter
    • Publication number 20080036637
    • Publication date Feb 14, 2008
    • Akira Kawabe
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Differential amplifer and operational amplifier
    • Publication number 20070182487
    • Publication date Aug 9, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Masayuki Ozasa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Receiver
    • Publication number 20070129041
    • Publication date Jun 7, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Akio Yokoyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Differential amplifier and operational amplifier
    • Publication number 20070001761
    • Publication date Jan 4, 2007
    • Matsushita Electric Industrial Co., Ltd.
    • Masayuki Ozasa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Receiver if system having image rejection mixer and band-pass filter
    • Publication number 20060262230
    • Publication date Nov 23, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Manabu Ookubo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Passive polyphase filter
    • Publication number 20060244551
    • Publication date Nov 2, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Masayuki Ozasa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Receiver if circuit including image rejection mixer and active band...
    • Publication number 20060068740
    • Publication date Mar 30, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Akio Yokoyama
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Differential amplifier and calculation amplifier
    • Publication number 20050151587
    • Publication date Jul 14, 2005
    • Masayuki Ozasa
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Delta sigma modulating apparatus
    • Publication number 20050088327
    • Publication date Apr 28, 2005
    • MATSUSHITA ELETRIC INDUSTRIAL CO., LTD
    • Akio Yokoyama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Cascade delta-sigma modulator
    • Publication number 20050001751
    • Publication date Jan 6, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Fumihito Inukai
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Filter
    • Publication number 20040174208
    • Publication date Sep 9, 2004
    • Akio Yokoyama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Automatic filter tuning control system
    • Publication number 20020011896
    • Publication date Jan 31, 2002
    • Akio Yokoyama
    • H03 - BASIC ELECTRONIC CIRCUITRY