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Optical amplifier
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Patent number 6,020,991
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Issue date Feb 1, 2000
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KDD Corporation
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Mimura Yoshinori
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Solid state laser
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Patent number 5,349,600
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Issue date Sep 20, 1994
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Kokusai Denshin Denwa Kabushiki Kaisha
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Osamu Shinbori
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H01 - BASIC ELECTRIC ELEMENTS
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Spatial light modulator
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Patent number 5,105,302
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Issue date Apr 14, 1992
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Kokusai Denshin Denwa Kabushiki Kaisha
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Yasuyuki Nagao
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G02 - OPTICS
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Fluoride glass optical fiber
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Patent number 4,674,835
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Issue date Jun 23, 1987
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Kokusai Denshin Denwa Co., Ltd.
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Yoshinori Mimura
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C03 - GLASS MINERAL OR SLAG WOOL
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Thin film magnetic head
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Patent number 4,179,719
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Issue date Dec 18, 1979
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Kokusai Denshin Denwa Kabushiki Kaisha
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Nobutake Imamura
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G11 - INFORMATION STORAGE
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Magneto-optical memory medium
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Patent number 4,152,486
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Issue date May 1, 1979
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Kokusai Denshin Denwa Kabushiki Kaisha
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Nobutake Imamura
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Magnetic transfer record film
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Patent number 4,126,494
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Issue date Nov 21, 1978
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Kokusai Denshin Denwa Kabushiki Kaisha
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Nobutake Imamura
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...