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:
Dec. 04, 1990
Filed:
Jun. 28, 1989
Applicant:
Inventors:
Masahiro Koezuka, Osaka, JP;
Kunio Takaoka, Osaka, JP;
Kaneo Suzuki, Nara, JP;
Shigeo Yasugi, Nara, JP;
Assignee:
Nitta Gelatin, Inc., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07K / ; C07K / ;
U.S. Cl.
CPC ...
530356 ; 530840 ; 514 21 ; 514801 ; 435 681 ;
Abstract
A good tissue-affinity and lack of antigenicity are required for the collagen used as the carrier of BMP. Conventional collagens have these properties only insufficiently. When the tyrosine content is below 2 residues/1000 residues, then the above properties of such collagens are good. Moreover, collagens excelling in the above properties can be readily obtained by using proteolytic enzymes.