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Circuit component
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Patent number 6,765,805
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Issue date Jul 20, 2004
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Matsushita Electric Industrial Co., Ltd.
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Takumi Naruse
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Filter
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Patent number 6,621,378
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Issue date Sep 16, 2003
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Matsushita Electric Industrial Co., Ltd.
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Takumi Naruse
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H03 - BASIC ELECTRONIC CIRCUITRY
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Electronic component
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Patent number 6,477,030
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Issue date Nov 5, 2002
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Matsushita Electric Industrial Co., Ltd.
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Akio Hidaka
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H01 - BASIC ELECTRIC ELEMENTS
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Flat type dielectric filter
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Patent number 5,248,949
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Issue date Sep 28, 1993
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Matsushita Electric Industrial Co., Ltd.
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Kazuhiro Eguchi
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H01 - BASIC ELECTRIC ELEMENTS