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. 05, 1993
Filed:
Sep. 27, 1990
Applicant:
Inventors:
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
43524025 ; 43524026 ; 4352402 ; 435813 ; 43524027 ;
Abstract
A method of culturing animal cells, which comprises (A) subjecting living animal cells to suspension culture in a culture tank, (B) withdrawing a portion of a suspension culture fluid containing the living animal cells from the culture tank, (C) supplying the withdrawn suspension culture fluid to a centrifugal separating device which is operated under specific conditions and separating the living animal cells from the suspension culture fluid, (D) withdrawing the separated living animal cells from the centrifugal separating device, and (E) recycling at least a portion of the withdrawn living animal cells to the culture tank for the step (A).