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Communication system
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Patent number 7,177,326
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Issue date Feb 13, 2007
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Fujitsu Limited
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Masamichi Kasa
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical line terminal
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Patent number 6,728,248
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Issue date Apr 27, 2004
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Fujitsu Limited
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Kazuhiro Uchida
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Alarm termination apparatus
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Patent number 5,644,292
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Issue date Jul 1, 1997
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Fujitsu Limited
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Aya Suzuki
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Secondary battery
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Patent number 4,740,436
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Issue date Apr 26, 1988
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Showa Denko Kabushiki Kaisha
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Yukio Kobayashi
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...