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Surface accoustic wave filter
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Patent number 5,663,697
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Issue date Sep 2, 1997
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Sanyo Electric Co., Ltd.
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Yasumi Kobayashi
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H03 - BASIC ELECTRONIC CIRCUITRY
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Antenna duplexer
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Patent number 5,534,829
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Issue date Jul 9, 1996
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Sanyo Electric Co., Ltd.
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Yasumi Kobayashi
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H01 - BASIC ELECTRIC ELEMENTS
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Surface acoustic wave device
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Patent number 5,059,847
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Issue date Oct 22, 1991
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Sanyo Electric Co., Ltd.
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Toshiharu Tanaka
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H03 - BASIC ELECTRONIC CIRCUITRY
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Surface acoustic wave device
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Patent number 4,868,444
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Issue date Sep 19, 1989
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Sanyo Electric Co., Ltd.
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Kenichi Shibata
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H03 - BASIC ELECTRONIC CIRCUITRY
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