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:
May. 15, 2012
Filed:
Feb. 22, 2005
Applicant:
Akihiro Suzuki, Kai, JP;
Inventor:
Akihiro Suzuki, Kai, JP;
Assignees:
University of Yamanashi, Yamanashi, JP;
Gunze Limited, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01D 5/12 (2006.01); D01D 5/00 (2006.01); D01D 5/04 (2006.01); B29C 47/88 (2006.01); B29C 47/34 (2006.01); B29C 55/00 (2006.01); D02G 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention resides in enabling biodegradable filament of polylactic acid, polyglycolic acid and the like to manufacture biodegradable micro-filament by simple and convenient means without needing special, high-accuracy and high-level apparatus; it is characterized in that highly molecular oriented micro-filament those of 12 μm or less and generally from 2 μm to 3 μm can be obtained by heating biodegradable filament by infrared beam and the heated original filament is drawn to 100 times or more by tension of 10 MPa or less.