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Hirotaka Kawai

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  • Hamamatsu-shi, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Successive aproximation A/D Converter
    • Publication number 20110133963
    • Publication date Jun 9, 2011
    • Yamaha Corporation
    • Hirotaka Kawai
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Charge pump
    • Publication number 20110068856
    • Publication date Mar 24, 2011
    • Yamaha Corporation
    • Masato Miyazaki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Offset voltage correction circuit and class D amplifier
    • Publication number 20110006843
    • Publication date Jan 13, 2011
    • Yamaha Corporation
    • Yasuomi Tanaka
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Class D amplifier circuit
    • Publication number 20100244958
    • Publication date Sep 30, 2010
    • Yamaha Corporation
    • Nobuaki Tsuji
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    SEMICONDUCTOR INTEGRATED CIRCUIT
    • Publication number 20100164590
    • Publication date Jul 1, 2010
    • Yamaha Corporation
    • Nobuaki Tsuji
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    D/A converter circuit and digital input class-D amplifier
    • Publication number 20100117730
    • Publication date May 13, 2010
    • Yamaha Corporation
    • Hirotaka Kawai
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Comparator
    • Publication number 20090102516
    • Publication date Apr 23, 2009
    • Yamaha Corporation
    • Masaya Suzuki
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Class D amplifier circuit
    • Publication number 20090027121
    • Publication date Jan 29, 2009
    • Yamaha Corporation
    • Hirotaka Kawai
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Digital input class-D amplifier
    • Publication number 20080224773
    • Publication date Sep 18, 2008
    • Yamaha Corporation
    • Nobuaki Tsuji
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Spectrum spreading circuit
    • Publication number 20080032640
    • Publication date Feb 7, 2008
    • Yamaha Corporation
    • Hirotaka Kawai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Offset voltage correction circuit and class D amplifier
    • Publication number 20080018393
    • Publication date Jan 24, 2008
    • Yamaha Corporation
    • Yasuomi Tanaka
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Semiconductor integrated circuit
    • Publication number 20080012632
    • Publication date Jan 17, 2008
    • Yamaha Corporation
    • Nobuaki Tsuji
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Automatic gain control circuit
    • Publication number 20080008336
    • Publication date Jan 10, 2008
    • Yamaha Corporation
    • Yasuomi Tanaka
    • H03 - BASIC ELECTRONIC CIRCUITRY