TREA

Mituaki Koyama

Follow

Person

  • Saitama, JP
People

Patents Grantslast 30 patents

  • 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