The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2020
Filed:
May. 01, 2017
Nisshin Pharma Inc., Chiyoda-ku, JP;
Masataka Harata, Ueda, JP;
Shingo Nonaka, Ueda, JP;
Hideki Kanai, Ueda, JP;
Hiroyuki Ikemoto, Fujimino, JP;
Kenji Takemoto, Fujimino, JP;
NISSHIN PHARMA INC., Chiyoda-ku, JP;
Abstract
Provided is a method for producing a polyunsaturated fatty acid while preventing deterioration of a silver salt solution. A method for producing a composition comprising a polyunsaturated fatty acid, comprising: supplying an aqueous solution comprising a silver salt into a reaction vessel to contact the aqueous solution with a raw material solution comprising an alkyl ester of the polyunsaturated fatty acid; and collecting the aqueous solution comprising the silver salt which has been contacted with the raw material solution from the reaction vessel, wherein the supply of the aqueous solution comprising the silver salt into the reaction vessel and the collection of the aqueous solution comprising the silver salt from the reaction vessel are carried out concurrently with each other.