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:
Nov. 03, 2015
Filed:
Mar. 17, 2010
Applicants:
Toshiyuki Iida, Ibaraki, JP;
Takahiro Nakai, Ibaraki, JP;
Takashi Shimizu, Ibaraki, JP;
Tsutomu Hani, Ibaraki, JP;
Inventors:
Toshiyuki Iida, Ibaraki, JP;
Takahiro Nakai, Ibaraki, JP;
Takashi Shimizu, Ibaraki, JP;
Tsutomu Hani, Ibaraki, JP;
Assignee:
NITTO DENKO CORPORATION, Ibaraki-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/00 (2006.01); B29C 41/28 (2006.01); B29C 55/04 (2006.01); C09D 163/10 (2006.01); G02B 5/30 (2006.01); G02F 1/13363 (2006.01); B29C 35/08 (2006.01); B29K 33/00 (2006.01); B29K 63/00 (2006.01);
U.S. Cl.
CPC ...
B29C 41/28 (2013.01); B29C 55/04 (2013.01); C09D 163/10 (2013.01); G02B 5/3083 (2013.01); B29C 35/0805 (2013.01); B29C 2035/0827 (2013.01); B29K 2033/08 (2013.01); B29K 2063/00 (2013.01); B29K 2995/0034 (2013.01); G02F 1/13363 (2013.01); Y10T 428/1036 (2015.01);
Abstract
The retardation film of the present invention contains at least one of an epoxy resin cured product and an epoxy (meth)acrylate resin cured product. In the retardation film of the present invention, in-plane birefringence index thereof at a wavelength of 590 nm is preferably 0.001 or more and a birefringence index in a thickness direction thereof at a wavelength of 590 nm is preferably 0.001 or more.