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:
Apr. 04, 2017
Filed:
Dec. 27, 2011
Yoshinobu Konno, Tokyo, JP;
Kairo Wakamatsu, Tokyo, JP;
Yasufumi Imamoto, Tokyo, JP;
Jun Ishibashi, Tokyo, JP;
Ken Takahashi, Tokyo, JP;
Hisaya Tanaka, Tokyo, JP;
Yoshinobu Konno, Tokyo, JP;
Kairo Wakamatsu, Tokyo, JP;
Yasufumi Imamoto, Tokyo, JP;
Jun Ishibashi, Tokyo, JP;
Ken Takahashi, Tokyo, JP;
Hisaya Tanaka, Tokyo, JP;
KYOWA HAKKO KIRIN CO., LTD, Tokyo, JP;
Abstract
Provided are a method for preparing a highly versatile aqueous solution having remarkably improved membrane filterability, which can be stably membrane-filtered in a short time, an aqueous solution prepared by the preparation method, a method for culturing cells using the aqueous solution which is prepared by the preparation method, a method for producing a physiologically active substance using the culturing method, a physiologically active substance produced by the method for producing a physiologically active substance, a method for performing membrane filtration of the aqueous solution which is prepared by the preparation method of the aqueous solution, a method for improving membrane filterability of the aqueous solution, and a method for producing the physiologically active substance by preparing the aqueous solution, performing membrane filtration of the aqueous solution, and then culturing cells using the resulting aqueous solution. The present invention relates to a method for preparing an aqueous solution, characterized by addition of a chelating agent.