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. 07, 2009
Filed:
Aug. 18, 2000
Applicants:
Yasukazu Himeda, Tokyo, JP;
Toshihiko Umeda, Tokyo, JP;
Inventors:
Yasukazu Himeda, Tokyo, JP;
Toshihiko Umeda, Tokyo, JP;
Assignee:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/715 (2006.01); A61K 31/075 (2006.01); A61L 15/16 (2006.01); A61L 15/00 (2006.01); A01N 43/04 (2006.01); A01N 31/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
(1) A tissue-covering medical material which comprises a soluble cellulose derivative having been made hardly soluble in water, which is used with a purpose of being embedded in the body or applied to the tissue, and (2) a method for producing the tissue-covering medical material as defined in (1), which comprises, as a method to make a soluble cellulose derivative hardly soluble in water, freezing and thawing an acidic solution of the soluble cellulose derivative, are provided.