TREA

Masaaki MAEJIMA

Follow

Person

  • Shiojiri, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Spring device and timepiece
    • Patent number 7,780,342
    • Issue date Aug 24, 2010
    • Seiko Epson Corporation
    • Osamu Takahashi
    • G04 - HOROLOGY

Patents Applicationslast 30 patents

  • Information Patent Application

    SPRING DEVICE AND TIMEPIECE
    • Publication number 20090086584
    • Publication date Apr 2, 2009
    • SEIKO EPSON CORPORATION
    • Osamu TAKAHASHI
    • G04 - HOROLOGY