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Data transmission system
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Patent number 7,286,616
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Issue date Oct 23, 2007
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Matsushita Electric Industrial Co., Ltd.
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Yutaka Takahira
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Digital data transmitter
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Patent number 7,218,678
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Issue date May 15, 2007
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Matsushita Electric Industrial Co., Ltd.
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Noboru Katta
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Ring network and data transmitter
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Patent number 7,133,936
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Issue date Nov 7, 2006
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Matsushita Electric Industrial Co., Ltd.
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Noboru Katta
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Receiver
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Patent number 6,992,537
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Issue date Jan 31, 2006
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Matsushita Electric Industrial Co., Ltd.
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Nobuhiko Yasui
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Communication device
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Patent number 6,839,006
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Issue date Jan 4, 2005
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Matsushita Electric Industrial Co., Ltd.
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Takahisa Sakai
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Communication network
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Patent number 6,320,871
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Issue date Nov 20, 2001
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Matsushita Electric Industrial Co. Ltd.
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Yuji Mizuguchi
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Network system
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Patent number 6,310,885
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Issue date Oct 30, 2001
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Matsushita Electric Industrial Co., Ltd.
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Yuji Mizuguchi
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Communication network
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Patent number 6,005,869
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Issue date Dec 21, 1999
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Matsushita Electric Industrial Co., Ltd.
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Takahisa Sakai
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H04 - ELECTRIC COMMUNICATION TECHNIQUE