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. 24, 2015
Filed:
Dec. 16, 2013
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventor:
Tadashi Omatsu, Minami-Ashigara-shi, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/08 (2006.01); G02F 1/1335 (2006.01); B29C 55/06 (2006.01); B29C 55/08 (2006.01); B29D 7/01 (2006.01); C08J 5/18 (2006.01); C08J 7/04 (2006.01); G02B 5/30 (2006.01); B29K 1/00 (2006.01); G02F 1/13363 (2006.01); G02F 1/1343 (2006.01); G02F 1/139 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1335 (2013.01); B29C 55/06 (2013.01); B29C 55/08 (2013.01); B29D 7/01 (2013.01); C08J 5/18 (2013.01); C08J 7/047 (2013.01); G02B 1/08 (2013.01); G02B 5/3083 (2013.01); G02F 1/13363 (2013.01); B29K 2001/00 (2013.01); B29K 2001/12 (2013.01); B29K 2995/0034 (2013.01); B32B 2457/202 (2013.01); C08J 2301/10 (2013.01); C08J 2401/00 (2013.01); G02F 1/1393 (2013.01); G02F 1/133634 (2013.01); G02F 1/134363 (2013.01); Y10T 428/10 (2015.01); Y10T 428/105 (2015.01); Y10T 428/265 (2015.01);
Abstract
A polymer film that has: a ratio R (VT/VM) of a sound velocity in a transverse direction VT to a sound velocity in a machine direction VM of from 1.05 to 1.50; and an in-plane retardation Re(λ) and a thickness-direction retardation Rth(λ) satisfying formula (I): (I) 0≦Re(630)≦10, and |Rth(630)|≦25, wherein Re(λ) represents an in-plane retardation at a wavelength of λ (nm); and Rth(λ) represents a thickness-direction retardation at a wavelength of λ (nm).