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:
Aug. 18, 2009

Filed:

Nov. 13, 2007
Applicants:

Hiroaki Mizushima, Ibaraki, JP;

Megumi Katou, Ibaraki, JP;

Mizue Nagata, Ibaraki, JP;

Takaaki Ishii, Ibaraki, JP;

Daisuke Ogomi, Ibaraki, JP;

Inventors:

Hiroaki Mizushima, Ibaraki, JP;

Megumi Katou, Ibaraki, JP;

Mizue Nagata, Ibaraki, JP;

Takaaki Ishii, Ibaraki, JP;

Daisuke Ogomi, Ibaraki, JP;

Assignee:

Nitto Denko Corporation, Ibaraki-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for producing a polarizing plate of the invention comprises bonding a transparent protective film (A) and another transparent protective film (B) to one side of a polarizer and to another side of the polarizer, respectively, with an adhesive, wherein the polarizer has a moisture content of 15 to 30% by weight, the transparent protective film (A) is made of the same quality material as the transparent protective film (B), the transparent protective film (A) is thicker than the transparent protective film (B), and the transparent protective film (A) has a moisture content higher than that of the transparent protective film (B). The polarizing plate obtained by the production method can suppress curling.


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