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. 03, 2011
Filed:
Dec. 10, 2009
Applicants:
Gyu Chan Cho, Uiwang-si, KR;
Jin Woo Lee, Uiwang-si, KR;
Sun Hong Park, Uiwang-si, KR;
Jong Kwan Kim, Uiwang-si, KR;
Inventors:
Gyu Chan Cho, Uiwang-si, KR;
Jin Woo Lee, Uiwang-si, KR;
Sun Hong Park, Uiwang-si, KR;
Jong Kwan Kim, Uiwang-si, KR;
Assignee:
Cheil Industries, Inc., Gumi-si, Kyeongsangbuk-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of extrusion molding a prism film and a prism film manufactured by the same, the method including providing a molten film, simultaneously forming a prism pattern and an embossed pattern on opposite surfaces of the molten film by passing the molten film through a gap between a prism roll and an emboss roll, and cooling the molten film having the prism pattern and the embossed pattern on opposite surfaces thereof.