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Tatumasa Yoshida
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Tokyo, JP
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last 30 patents
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Patent Grant
Dielectric filter having trimmable capacitor
Patent number
4,692,725
Issue date
Sep 8, 1987
OKI Electronics Co., Ltd.
Atsushi Fukasawa
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Dielectric filter
Patent number
4,546,333
Issue date
Oct 8, 1985
Oki Electric Industry Co., Ltd.
Atsushi Fukasawa
H01 - BASIC ELECTRIC ELEMENTS