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Hiroyuki Tsurumi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Power amplifying device and audio system
    • Patent number 11,437,958
    • Issue date Sep 6, 2022
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Power amplifying device and audio equipment
    • Patent number 11,171,617
    • Issue date Nov 9, 2021
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Amplifier
    • Patent number 9,735,762
    • Issue date Aug 15, 2017
    • Kabushiki Kaisha Toshiba
    • Katsuhiro Yasuda
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Current feedback output circuit
    • Patent number 9,692,371
    • Issue date Jun 27, 2017
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Power amplifying device
    • Patent number 9,602,070
    • Issue date Mar 21, 2017
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Current feedback output circuit
    • Patent number 9,083,295
    • Issue date Jul 14, 2015
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Semiconductor device
    • Patent number 9,036,312
    • Issue date May 19, 2015
    • Kabushiki Kaisha Toshiba
    • Kazuhiro Kato
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Power amplifying apparatus and audio system
    • Patent number 8,908,886
    • Issue date Dec 9, 2014
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    High-side switch circuit
    • Patent number 8,604,842
    • Issue date Dec 10, 2013
    • Kabushiki Kaisha Toshiba
    • Yuki Sato
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Power amplifying circuit
    • Patent number 8,552,799
    • Issue date Oct 8, 2013
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Audio dropout amplifier
    • Patent number 8,232,838
    • Issue date Jul 31, 2012
    • Kabushiki Kaisha Toshiba
    • Katsuhiro Yasuda
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Push-pull output circuit
    • Patent number 8,193,863
    • Issue date Jun 5, 2012
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Integrated circuit device and audio system
    • Patent number 8,050,423
    • Issue date Nov 1, 2011
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Power amplifier system provided with improved protection function
    • Patent number 7,696,827
    • Issue date Apr 13, 2010
    • Kabushiki Kaisha Toshiba
    • Katsuhiro Yasuda
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Power amplification device
    • Patent number 7,557,660
    • Issue date Jul 7, 2009
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Amplifier circuit of BTL system
    • Patent number 7,420,413
    • Issue date Sep 2, 2008
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Power amplifier system provided with improved protection function
    • Patent number 7,375,589
    • Issue date May 20, 2008
    • Kabushiki Kaisha Toshiba
    • Katsuhiro Yasuda
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Power amplifier
    • Patent number 7,242,250
    • Issue date Jul 10, 2007
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Semiconductor output circuit
    • Patent number 6,388,496
    • Issue date May 14, 2002
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    High-efficiency power amplifier
    • Patent number 6,107,886
    • Issue date Aug 22, 2000
    • Kabushiki Kaisha Toshiba
    • Hiromi Kusakabe
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

  • Information Patent Application

    POWER AMPLIFYING DEVICE AND AUDIO EQUIPMENT
    • Publication number 20200162040
    • Publication date May 21, 2020
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    AMPLIFIER
    • Publication number 20170149421
    • Publication date May 25, 2017
    • Kabushiki Kaisha Toshiba
    • Katsuhiro Yasuda
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    POWER AMPLIFYING DEVICE
    • Publication number 20160276993
    • Publication date Sep 22, 2016
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CURRENT FEEDBACK OUTPUT CIRCUIT
    • Publication number 20150270815
    • Publication date Sep 24, 2015
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    CURRENT FEEDBACK OUTPUT CIRCUIT
    • Publication number 20140167850
    • Publication date Jun 19, 2014
    • KABUSHIKI KAISHA TOSHIBA
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    SEMICONDUCTOR DEVICE
    • Publication number 20130242449
    • Publication date Sep 19, 2013
    • Kabushiki Kaisha Toshiba
    • Kazuhiro KATO
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    POWER AMPLIFYING APPARATUS AND AUDIO SYSTEM
    • Publication number 20130195289
    • Publication date Aug 1, 2013
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    HIGH-SIDE SWITCH CIRCUIT
    • Publication number 20130049813
    • Publication date Feb 28, 2013
    • KABUSHIKI KAISHA TOSHIBA
    • Yuki Sato
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    POWER AMPLIFYING CIRCUIT
    • Publication number 20130038395
    • Publication date Feb 14, 2013
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    AMPLIFIER
    • Publication number 20110193631
    • Publication date Aug 11, 2011
    • Kabushiki Kaisha Toshiba
    • Katsuhiro Yasuda
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    PUSH-PULL OUTPUT CIRCUIT
    • Publication number 20110163809
    • Publication date Jul 7, 2011
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    INTEGRATED CIRCUIT DEVICE AND AUDIO SYSTEM
    • Publication number 20090010454
    • Publication date Jan 8, 2009
    • Kabushiki Kaisha Toshiba
    • Akira Yamauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    POWER AMPLIFICATION DEVICE
    • Publication number 20090002072
    • Publication date Jan 1, 2009
    • Kabushiki Kaisha Toshiba
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    POWER AMPLIFIER SYSTEM PROVIDED WITH IMPROVED PROTECTION FUNCTION
    • Publication number 20080315952
    • Publication date Dec 25, 2008
    • Katsuhiro Yasuda
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Amplifier circuit of BTL system
    • Publication number 20070252645
    • Publication date Nov 1, 2007
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    POWER AMPLIFIER SYSTEM PROVIDED WITH IMPROVED PROTECTION FUNCTION
    • Publication number 20070075781
    • Publication date Apr 5, 2007
    • Katsuhiro Yasuda
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    Power amplifier
    • Publication number 20050218987
    • Publication date Oct 6, 2005
    • Hiroyuki Tsurumi
    • H03 - BASIC ELECTRONIC CIRCUITRY