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:
Jul. 11, 1978
Filed:
Sep. 29, 1976
Katsuhiro Ogasa, Yokohama, JP;
Morio Kuboyama, Tokyo, JP;
Minoru Saito, Komae, JP;
Kazuhiro Nagata, Tokyo, JP;
Morinaga Milk Industry Co., Ltd., Tokyo, JP;
Abstract
A process for preparing a therapeutic agent characterized by preculturing human amnion cells isolated from human amnion by trypsinization or human amnion cells obtained by subculturing the isolated cells in a medium containing calf or bovine fetal serum at least one time for 1 to 5 days to form a monolayer, removing the medium, adding a medium containing 0.5 to 20 mg of human serum albumin per 1 ml of medium thereto and culturing it for 3 to 6 days, dialyzing the culture liquid against diluted buffer or water, and filtering the dialyzed culture liquid through a bacterial filter thereby obtaining a germ free liquid agent.