TREA

Imao Hiraga

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  • Suwa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Timepiece structure
    • Patent number 4,862,434
    • Issue date Aug 29, 1989
    • Shiojiro Kogyo Kabushiki Kaisha
    • Imao Hiraga
    • G04 - HOROLOGY
  • Information Patent Grant

    Timepiece construction
    • Patent number 4,496,246
    • Issue date Jan 29, 1985
    • Kabushiki Kaisha Suwa Seikosha
    • Tomio Ota
    • G04 - HOROLOGY
  • Information Patent Grant

    Gear train of an electronic timepiece
    • Patent number 4,365,899
    • Issue date Dec 28, 1982
    • Kabushiki Kaisha Suwa Seikosha
    • Kenichi Ushikoshi
    • G04 - HOROLOGY