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:
Sep. 23, 2014
Filed:
May. 24, 2010
Applicants:
Hiroyuki Sato, Tokyo, JP;
Masahiro Yamazaki, Tokyo, JP;
Ryo Kato, Tokyo, JP;
Moriaki Arasaki, Tokyo, JP;
Kotaku Saigusa, Tokyo, JP;
Inventors:
Hiroyuki Sato, Tokyo, JP;
Masahiro Yamazaki, Tokyo, JP;
Ryo Kato, Tokyo, JP;
Moriaki Arasaki, Tokyo, JP;
Kotaku Saigusa, Tokyo, JP;
Assignee:
Kureha Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D 5/08 (2006.01); D01D 5/26 (2006.01); D01D 10/04 (2006.01); D02J 1/22 (2006.01); D01F 6/62 (2006.01);
U.S. Cl.
CPC ...
D01F 6/625 (2013.01); D02J 1/228 (2013.01); D01D 10/0409 (2013.01);
Abstract
A method for producing a polyglycolic acid fiber, including: obtaining undrawn yarns by melt spinning a polyglycolic acid resin; keeping the undrawn yarns under a temperature condition of 1 to 20° C.; obtaining drawn yarns by drawing the kept undrawn yarns; and, if necessary obtaining a staple fiber by cutting the drawn yarns.