Inventor
KOFUJI HIROSHI
JP4 patents
Patents
4 patentsUS6512147B2Jan 28, 2003
Apparatus and process for generating mixed multi-component vapor
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US6336997B1Jan 8, 2002
Process for refining heat-deteriorative compound, contained in multi-component liquid mixture, by distillation
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US6554967B1Apr 29, 2003
Method of refining dihydroxyaryl compound
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US6262315B1Jul 17, 2001
Process and apparatus for producing dihydric phenolic compound
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