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:
Oct. 01, 2019
Filed:
Feb. 24, 2016
Toray Industries, Inc., Tokyo, JP;
Takashi Mimitsuka, Kamakura, JP;
Kentaro Ishii, Kamakura, JP;
Ken Morita, Kamakura, JP;
Masashi Higasa, Kamakura, JP;
Kenji Sawai, Kamakura, JP;
Hideki Sawai, Kamakura, JP;
Katsushige Yamada, Kamakura, JP;
Shinichi Minegishi, Urayasu, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
A method of producing a chemical product includes cultivating microorganisms or culture cells in a fermentation tank; transferring a culture liquid from the fermentation tank to a membrane separation tank to filter the culture liquid through a separation membrane; and collecting a fermentation product from a filtration liquid as the chemical product while refluxing an unfiltered culture liquid that has not been filtered to be joined to the culture liquid on an upstream side of the membrane separation tank, wherein one portion of the culture liquid to be transferred from the fermentation tank is allowed to bypass the membrane separation tank depending on a pressure at a culture liquid flow-in side of the membrane separation tank.