TREA

Tsunetoshi Sekiguchi

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Solar battery timepiece
    • Patent number 4,276,629
    • Issue date Jun 30, 1981
    • Citizen Watch Company Limited
    • Osamu Matsumura
    • G04 - HOROLOGY
  • Information Patent Grant

    Watchglass fixing structure
    • Patent number 4,234,948
    • Issue date Nov 18, 1980
    • Citizen Watch Co., Ltd.
    • Yasuo Maekawa
    • G04 - HOROLOGY
  • Information Patent Grant

    Solar battery timepiece
    • Patent number 4,165,604
    • Issue date Aug 28, 1979
    • Citizen Watch Co., Ltd.
    • Osamu Matsumura
    • G04 - HOROLOGY
  • Information Patent Grant

    Push button device for watch casing
    • Patent number 4,152,889
    • Issue date May 8, 1979
    • Citizen Watch Co., Ltd.
    • Tsunetoshi Sekiguchi
    • G04 - HOROLOGY