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Optical transmission module
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Patent number 7,217,957
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Issue date May 15, 2007
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Sumitomo Electric Industries, Ltd.
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Yoshiki Kuhara
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H01 - BASIC ELECTRIC ELEMENTS
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Optical waveguide module
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Patent number 7,149,375
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Issue date Dec 12, 2006
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Sumitomo Electric Industries, Ltd.
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Takeo Komiya
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G02 - OPTICS
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Optical receiver
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Patent number 7,106,980
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Issue date Sep 12, 2006
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Sumitomo Electric Industries, Ltd.
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Hiromi Nakanishi
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Optical communication device
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Patent number 6,975,812
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Issue date Dec 13, 2005
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Sumitomo Electric Industries, Ltd.
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Yoshiki Kuhara
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Photodiode
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Patent number 6,885,075
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Issue date Apr 26, 2005
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Sumitomo Electric Industries, Ltd.
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Yoshiki Kuhara
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H01 - BASIC ELECTRIC ELEMENTS
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Optical transmission module
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Patent number 6,860,647
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Issue date Mar 1, 2005
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Sumitomo Electric Industries, Ltd.
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Naoyuki Yamabayashi
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G02 - OPTICS
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Optical transmitter
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Patent number 6,847,053
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Issue date Jan 25, 2005
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Sumitomo Electric Industries, Ltd.
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Yoshiki Kuhara
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H01 - BASIC ELECTRIC ELEMENTS
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Optical receiver module
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Patent number 6,824,313
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Issue date Nov 30, 2004
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Sumitomo Electric Industries, Ltd.
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Yoshiki Kuhara
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H01 - BASIC ELECTRIC ELEMENTS
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Optical communication device
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Patent number 6,733,190
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Issue date May 11, 2004
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Sumitomo Electric Industries, Ltd.
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Yoshiki Kuhara
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H01 - BASIC ELECTRIC ELEMENTS
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Laser diode module
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Patent number 6,575,641
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Issue date Jun 10, 2003
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Sumitomo Electric Industries, Ltd.
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Naoyuki Yamabayashi
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H01 - BASIC ELECTRIC ELEMENTS
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Optical communication device
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Patent number 6,567,590
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Issue date May 20, 2003
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Sumitomo Electric Industries, Ltd.
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Takeshi Okada
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H01 - BASIC ELECTRIC ELEMENTS
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Photodiode
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Patent number 6,518,638
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Issue date Feb 11, 2003
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Sumitomo Electric Industries, Ltd.
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Yoshiki Kuhara
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H01 - BASIC ELECTRIC ELEMENTS
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PD/LD module and PD module
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Patent number 5,764,826
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Issue date Jun 9, 1998
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Sumitomo Electric Industries, Ltd.
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Yoshiki Kuhara
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G02 - OPTICS
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Photodiode
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Patent number D289037
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Issue date Mar 31, 1987
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Sumitomo Electric Industries, Ltd.
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Hideaki Nishizawa
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D13 - Equipment for production, distribution, or transformation of energy