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:
May. 03, 2016
Filed:
Jul. 01, 2013
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
A method for producing a polarizer () comprises the steps of: (A) stretching a polyvinyl alcohol-based resin layer () to obtain a stretched layer (); (B) immersing the stretched layer () in a dyeing liquid () containing iodine to obtain a dyed layer () in which absorbance thereof determined from a tristimulus value Y is from 0.4 to 1.0 (transmittance T=40% to 10%); and (C) removing a part of iodine adsorbed in the dyed layer () so that the absorbance of the dyed layer () decreases by 0.03 to 0.7, provided that the absorbance of the dyed layer () is controlled so that it does not become less than 0.3.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile