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Delay locked loop circuit
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Patent number 7,705,645
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Issue date Apr 27, 2010
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Panasonic Corporation
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Shiro Sakiyama
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H03 - BASIC ELECTRONIC CIRCUITRY
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Digital-to-analog converter
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Patent number 7,671,775
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Issue date Mar 2, 2010
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Panasonic Corporation
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Yasuyuki Doi
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Signal transmission circuit
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Patent number 7,388,405
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Issue date Jun 17, 2008
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Matsushita Electric Industrial Co., Ltd.
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Yusuke Tokunaga
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H04 - ELECTRIC COMMUNICATION TECHNIQUE