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Ferulic acid derivative
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Patent number 6,441,217
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Issue date Aug 27, 2002
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Agency of Industrial Science & Technology, Ministry of International Trade &...
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Takushi Sugino
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Light source device
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Patent number 5,058,981
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Issue date Oct 22, 1991
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Sumitomo Electric Industries, Ltd.
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Shinsuke Umegaki
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G02 - OPTICS
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Organic conductive complex
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Patent number 5,030,387
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Issue date Jul 9, 1991
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Sumitomo Electric Industries Ltd.
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Masaru Matsuoka
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C07 - ORGANIC CHEMISTRY