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Katsuhiko Tsumori

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  • Kobe, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker system having processing circuitry
    • Patent number 7,130,441
    • Issue date Oct 31, 2006
    • Fujitsu Ten Limited
    • Katsuhiko Tsumori
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker assembly having plural drivers
    • Patent number 7,082,208
    • Issue date Jul 25, 2006
    • Fujitsu Ten Limited
    • Katsuhiko Tsumori
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker system
    • Patent number 6,751,330
    • Issue date Jun 15, 2004
    • Fujitsu Ten Limited
    • Hiroshi Kowaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker apparatus
    • Patent number 6,724,909
    • Issue date Apr 20, 2004
    • Fujitsu Ten Limited
    • Katsuhiko Tsumori
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Speaker assembly having plural drivers
    • Publication number 20040165738
    • Publication date Aug 26, 2004
    • Katsuhiko Tsumori
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker system having a processing circuitry
    • Publication number 20040165744
    • Publication date Aug 26, 2004
    • Katsuhiko Tsumori
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker apparatus
    • Publication number 20020057821
    • Publication date May 16, 2002
    • Katsuhiko Tsumori
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker system
    • Publication number 20010028724
    • Publication date Oct 11, 2001
    • Hiroshi Kowaki
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE