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. 28, 1986
Filed:
Oct. 11, 1983
Applicant:
Inventors:
Assignees:
Agency of Industrial Science & Technology, Tokyo, JP;
Ministry of International Trade & Industry, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435182 ; 435180 ; 435177 ; 435174 ;
Abstract
A fluorine resin membrane is made hydrophilic to a prescribed depth in the direction of thickness thereof to produce an asymmetrical membrane having a hydrophilic portion and a hydrophobic portion. An enzyme is immobilized in the hydrophilic portion of the membrane to obtain a membrane having a function of enzymatic reaction and a function of selective gas permeation. The hydrophilic portion is formed by causing a perfluoroalkyl surface active agent to penetrate the prescribed depth that is to be hydrophilic.