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:
Feb. 18, 2025
Filed:
Jul. 01, 2022
W-scope Korea Co., Ltd., Cheongju-si, KR;
W-scope Chungju Plant Co., Ltd., Chungju-si, KR;
Kyoung Sun Ryu, Cheongju-si, KR;
Won Keun Choi, Cheongju-si, KR;
Kwang Ho Choi, Cheongju-si, KR;
Pyung Yong Park, Cheongju-si, KR;
Byung Hyun Kim, Cheongju-si, KR;
W-SCOPE KOREA CO., LTD., Cheongju-si, KR;
W-SCOPE CHUNGJU PLANT CO., LTD., Cheongju-si, KR;
Abstract
One aspect of the present invention provides a stretching apparatus for manufacturing a separator including a first stretching machine and a second stretching machine arranged in parallel with each other, in which the first stretching machine includes a plurality of first unit sections having different stretching ratios, and the second stretching machine includes a plurality of second unit sections having different stretching ratios, the overall stretching ratio by each of the first stretching machine and the second stretching machine is the same each other, and at least one stretching ratio of the first unit section and at least one stretching ratio of the second unit section are different from each other and a method of manufacturing a separator using the same.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile