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Toshio Sugiyama
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Kouza-gun, JP
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last 30 patents
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Patent Grant
Method for producing an AT-cut resonator
Patent number
6,629,342
Issue date
Oct 7, 2003
Toyo Communication Equipment Co., Ltd.
Yoshiaki Tanaka
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Patent Grant
At-cut crystal resonator
Patent number
6,114,801
Issue date
Sep 5, 2000
Toyo Communication Equipment Co., Ltd.
Yoshiaki Tanaka
H03 - BASIC ELECTRONIC CIRCUITRY