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Water repellent composition
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Patent number 5,599,893
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Issue date Feb 4, 1997
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Shin-Etsu Co., Ltd.
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Mitsuo Asai
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Light control sheets
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Patent number 5,108,857
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Issue date Apr 28, 1992
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Sumitomo Chemical Company, Limited
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Shinichiro Kitayama
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G02 - OPTICS
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Light control sheets
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Patent number 4,929,523
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Issue date May 29, 1990
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Sumitomo Chemical Company Limited
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Shinichiro Kitayama
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G02 - OPTICS