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Kiyonori Iwama
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Tokorozawa, JP
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last 30 patents
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Patent Grant
Process for preparation of a polymeric piezo-electric material and...
Patent number
4,268,653
Issue date
May 19, 1981
Pioneer Electronic Corporation
Masataka Uchidoi
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Piezoelectric transducer with multiple electrode areas
Patent number
4,170,742
Issue date
Oct 9, 1979
Pioneer Electronic Corporation
Tadasi Itagaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE