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Masahito Yoshino
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Suwa, JP
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last 30 patents
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Patent Grant
Charging circuit for an analog electronic timepiece
Patent number
4,882,717
Issue date
Nov 21, 1989
Seiko Epson Corporation
Motomu Hayakawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power supply for electronic timpiece
Patent number
4,730,287
Issue date
Mar 8, 1988
Seiko Epson Corporation
Masahito Yoshino
G04 - HOROLOGY
Information
Patent Grant
Analog electric timepiece
Patent number
4,533,257
Issue date
Aug 6, 1985
Kabushiki Kaisha Suwa Seikosha
Masuo Kitano
G04 - HOROLOGY
Information
Patent Grant
Quartz crystal watch
Patent number
4,392,748
Issue date
Jul 12, 1983
Kabushiki Kaisha Suwa Seikosha
Masahito Yoshino
G04 - HOROLOGY