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Toshiyuki Takezawa
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Saitama, JP
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last 30 patents
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Patent Grant
Process for producing optically active alcohols
Patent number
4,962,242
Issue date
Oct 9, 1990
Takasago Perfumery Co., Ltd.
Nobuo Yamada
C07 - ORGANIC CHEMISTRY
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Patent Grant
Ruthenium-phosphine complex
Patent number
4,739,084
Issue date
Apr 19, 1988
Takasago Perfumery Co., Ltd.
Hidemasa Takaya
C07 - ORGANIC CHEMISTRY