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Optical connector
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Patent number 6,886,990
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Issue date May 3, 2005
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Seiko Instruments Inc., Nippon
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Junji Taira
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G02 - OPTICS
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Photoelectric conversion connector
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Patent number D490778
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Issue date Jun 1, 2004
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NTT Advanced Technology Corporation
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Shuichiro Inagaki
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D13 - Equipment for production, distribution, or transformation of energy
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Pin-board matrix switch
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Patent number 5,544,004
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Issue date Aug 6, 1996
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Nippon Telegraph & Telephone Corporation
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Shuichiro Inagaki
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical connector
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Patent number 4,759,599
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Issue date Jul 26, 1988
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Kabushiki Kaisha Toshiba
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Yasuhiro Yamaguchi
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G02 - OPTICS