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Line processing equipment
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Patent number 7,085,493
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Issue date Aug 1, 2006
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NEC Corporation
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Yoshiharu Maeno
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Packet switching network
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Patent number 6,760,346
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Issue date Jul 6, 2004
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NEC Corporation
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Yoshihiko Suemura
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical network
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Patent number 6,429,955
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Issue date Aug 6, 2002
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NEC Corporation
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Yoshihiko Suemura
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Bit synchronization circuit
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Patent number 6,373,911
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Issue date Apr 16, 2002
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NEC Corporation
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Akio Tajima
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical network device
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Patent number 5,905,587
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Issue date May 18, 1999
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NEC Corporation
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Yoshiharu Maeno
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H04 - ELECTRIC COMMUNICATION TECHNIQUE