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Optical dynamic burst switch
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Patent number 7,263,289
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Issue date Aug 28, 2007
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Nippon Telegraph and Telephone Corporation
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Kohei Shiomoto
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical dynamic burst switch
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Patent number 7,200,330
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Issue date Apr 3, 2007
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Nippon Telegraph and Telephone Corporation
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Kohei Shiomoto
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Circuit-switched network
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Patent number 6,731,628
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Issue date May 4, 2004
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Nippon Telegraph and Telephone Corporation
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Kohei Shiomoto
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Circuit-switched network
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Patent number 6,324,175
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Issue date Nov 27, 2001
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Nippon Telegraph and Telephone Corporation
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Kohei Shiomoto
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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ATM switch
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Patent number 5,892,604
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Issue date Apr 6, 1999
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Nippon Telegraph & Telephone Corporation
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Naoaki Yamanaka
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H04 - ELECTRIC COMMUNICATION TECHNIQUE