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Imao Hiraga
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Suwa, JP
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last 30 patents
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Patent Grant
Timepiece structure
Patent number
4,862,434
Issue date
Aug 29, 1989
Shiojiro Kogyo Kabushiki Kaisha
Imao Hiraga
G04 - HOROLOGY
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Patent Grant
Timepiece construction
Patent number
4,496,246
Issue date
Jan 29, 1985
Kabushiki Kaisha Suwa Seikosha
Tomio Ota
G04 - HOROLOGY
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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