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Surface acoustic wave filter
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Patent number 7,183,878
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Issue date Feb 27, 2007
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Matsushita Electric Industrial Co., Ltd.
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Hiroshi Kushitani
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H03 - BASIC ELECTRONIC CIRCUITRY
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Surface acoustic wave device
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Patent number 7,019,435
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Issue date Mar 28, 2006
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Matsushita Electric Industrial Co., Ltd.
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Shinobu Nakaya
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H03 - BASIC ELECTRONIC CIRCUITRY
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Surface acoustic wave filter
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Patent number 6,972,643
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Issue date Dec 6, 2005
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Matsushita Electric Industrial Co., Ltd.
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Akio Tsunekawa
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H03 - BASIC ELECTRONIC CIRCUITRY