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Yukio Hashimoto
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Niiza, JA
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Patents Grants
last 30 patents
Information
Patent Grant
Electronic timepiece
Patent number
4,015,419
Issue date
Apr 5, 1977
Citizen Watch Co., Ltd.
Shigeru Morokawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Electric timepiece
Patent number
3,978,650
Issue date
Sep 7, 1976
Citizen Watch Co., Ltd.
Yukio Hashimoto
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Temperature compensated electronic timepiece
Patent number
3,938,316
Issue date
Feb 17, 1976
Citizen Watch Co., Ltd.
Shigeru Morokawa
H03 - BASIC ELECTRONIC CIRCUITRY