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:
Aug. 04, 2015
Filed:
Aug. 23, 2011
Applicants:
Masayuki Tsunekawa, Tokyo, JP;
Kana Yamamoto, Tokyo, JP;
Toshiki Iwasaki, Tokyo, JP;
Inventors:
Assignee:
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/28 (2006.01); G02B 1/10 (2015.01); G02B 5/30 (2006.01); G02B 1/118 (2015.01);
U.S. Cl.
CPC ...
G02B 1/10 (2013.01); G02B 1/118 (2013.01); G02B 5/30 (2013.01); G02B 5/3041 (2013.01); Y10T 428/24355 (2015.01);
Abstract
Provided is an optical layered body having excellent blocking resistance. The optical layered body includes a triacetyl cellulose substrate and a hard coat layer, the hard coat layer having fine surface roughness that has an average PV roughness Rtm of 2.2 to 11.5 nm, a base roughness depth R3z of 2.5 to 13.5 nm, and a ten-point average roughness Rz of 2.6 to 13.5 nm, and satisfy the relation Rtm<R3z≦Rz.