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. 13, 1993
Filed:
Oct. 06, 1987
Applicant:
Inventors:
Masahiko Ishida, Hitachi, JP;
Ryoichi Haga, Hitachi, JP;
Yuusaku Nishimura, Hitachi, JP;
Masami Satoh, Ibaraki, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ; B01J / ;
U.S. Cl.
CPC ...
435201 ; 435202 ; 435203 ; 435204 ; 435205 ; 435209 ; 435211 ; 502404 ;
Abstract
Cross-linked polyglucans obtained by cross-linking polyglucans having branched chains intermolecularly and/or intramolecularly or cross-linked homooligomers obtained by cross-linking .alpha.-1,4-linked homooligomers of glucose intermolecularly can selectively adsorb glucoamylase and/or .beta.-amylase thereto. By the use of such three-dimensional, cross-linked high molecular weight substances, glucoamylase and .beta.-amylase can be isolated and purified extremely efficiently.