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:
Jun. 24, 2014
Filed:
Dec. 07, 2012
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Masateru Ito, Kamakura, JP;
Shin-ichi Minegishi, Otsu, JP;
Eri Shimizu, Otsu, JP;
Kenji Sawai, Kamakura, JP;
Yohito Ito, Otsu, JP;
Hideki Sawai, Kamakura, JP;
Katsushige Yamada, Kamakura, JP;
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 7/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of producing lactic acid by separating lactic acid produced in a culture solution by microbial fermentation, comprising: a step (A) of filtering the culture solution through a nano-filtration membrane; and a step (B) of distilling a lactic-acid-containing solution produced in step (A) under a pressure of 1 Pa to atmospheric pressure (inclusive) at a temperature of 25 to 200° C. (inclusive) to recover lactic acid.