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Genwa Koki

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  • Sayama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Crystal oscillator
    • Patent number 7,061,164
    • Issue date Jun 13, 2006
    • Nihon Dempa Kogyo Co., Ltd.
    • Takahiko Iwasaki
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    IT-cut quartz crystal unit
    • Patent number 7,011,887
    • Issue date Mar 14, 2006
    • Nihon Dempa Kogyo Co., Ltd.
    • Shigeru Obara
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Heat resistant quartz-crystal unit
    • Patent number 6,680,560
    • Issue date Jan 20, 2004
    • Nihon Dempa Kogyo Co., Ltd.
    • Genwa Koki
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

  • Information Patent Application

    Crystal oscillator
    • Publication number 20050269912
    • Publication date Dec 8, 2005
    • Takahiko Iwasaki
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    IT-cut quartz crystal unit
    • Publication number 20040173141
    • Publication date Sep 9, 2004
    • NIHON DEMPA KOGYO CO., LTD.
    • Shigeru Obara
    • C30 - CRYSTAL GROWTH
  • Information Patent Application

    Heat resistant quartz-crystal unit
    • Publication number 20030102778
    • Publication date Jun 5, 2003
    • Genwa Koki
    • H03 - BASIC ELECTRONIC CIRCUITRY