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.

Date of Patent:
Nov. 01, 2016

Filed:

Aug. 07, 2014
Applicant:

Sumitomo Chemical Company, Limited, Chuo-ku, Tokyo, JP;

Inventors:

Mitsutaka Sase, Niihama, JP;

Nobuyuki Hatanaka, Osaka, JP;

Tadahiro Kobayashi, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 1/12 (2006.01); G02B 5/32 (2006.01); B32B 38/00 (2006.01); B32B 37/24 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); G02B 1/12 (2013.01); G02B 5/3016 (2013.01); G02B 5/32 (2013.01); B32B 38/164 (2013.01); B32B 2037/243 (2013.01); B32B 2038/0076 (2013.01); B32B 2305/72 (2013.01); B32B 2307/40 (2013.01); B32B 2310/0806 (2013.01); B32B 2398/00 (2013.01); B32B 2457/202 (2013.01);
Abstract

A method for producing a long retardation film having an optical axis in an oblique direction relative to the length direction of the long retardation film is provided.


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