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Tatsuo Nagayoshi
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Yao, JP
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last 30 patents
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Patent Grant
Method for frequency regulation of tuning-fork vibrator
Patent number
4,385,473
Issue date
May 31, 1983
Hosiden Electronics Co., Ltd.
Shigeo Aoki
H03 - BASIC ELECTRONIC CIRCUITRY
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Patent Grant
Liquid crystal display device
Patent number
4,382,659
Issue date
May 10, 1983
Hosiden Electronics Co., Ltd.
Shigeo Aoki
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS