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Optical module
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Patent number 7,367,718
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Issue date May 6, 2008
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Sumitomo Electric Industries, Ltd.
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Kazushige Oki
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H01 - BASIC ELECTRIC ELEMENTS
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Optical module and optical hub system
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Patent number 7,154,752
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Issue date Dec 26, 2006
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Sumitomo Electric Industries, Ltd.
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Shunsuke Sato
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Optical module
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Patent number 7,121,743
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Issue date Oct 17, 2006
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Sumitomo Electric Industries, Ltd.
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Toshio Mizue
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G02 - OPTICS
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Optical module
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Patent number 7,008,119
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Issue date Mar 7, 2006
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Sumitomo Electric Industries, Ltd.
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Toshio Mizue
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G02 - OPTICS
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Optical transceiver
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Patent number 6,540,412
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Issue date Apr 1, 2003
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Sumitomo Electric Industries, Ltd.
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Ryugen Yonemura
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G02 - OPTICS
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Optical module
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Patent number 6,354,747
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Issue date Mar 12, 2002
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Sumitomo Electric Industries, Ltd.
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Takeshi Irie
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G02 - OPTICS
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Optical module
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Patent number 6,315,465
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Issue date Nov 13, 2001
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Sumitomo Electric Industries, Ltd.
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Toshio Mizue
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G02 - OPTICS
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Optical data link
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Patent number 6,239,427
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Issue date May 29, 2001
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Sumitomo Electric Industries, Ltd.
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Toshio Mizue
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G02 - OPTICS
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Optical data link
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Patent number 6,234,686
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Issue date May 22, 2001
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Sumitomo Electric Industries, Ltd.
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Ichiro Tonai
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G02 - OPTICS
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Light communication apparatus
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Issue date Apr 28, 1992
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Sumitomo Electric Industries Ltd.
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Jun Okuno
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL