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:
Mar. 21, 2017
Filed:
Mar. 26, 2015
Applicant:
Teijin Chemicals, Ltd., Tokyo, JP;
Inventors:
Akiko Washizu, Tokyo, JP;
Masatoshi Ando, Tokyo, JP;
Tetsuya Motoyoshi, Tokyo, JP;
Shoichi Maekawa, Tokyo, JP;
Assignee:
TEIJIN CHEMICALS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 7/01 (2006.01); C08J 5/18 (2006.01); C08G 64/02 (2006.01); C08G 64/16 (2006.01); G02B 5/30 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08G 64/0208 (2013.01); C08G 64/1608 (2013.01); G02B 5/3083 (2013.01); G02F 1/133634 (2013.01); C08J 2369/00 (2013.01); G02F 2001/133637 (2013.01); Y10T 428/1036 (2015.01);
Abstract
An optical film having a desired wavelength dispersion characteristic, a low photoelastic coefficient and a desired Nz coefficient. The optical film is formed from a copolymer and meets the following conditions (i) to (v):