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:
Feb. 22, 2005
Filed:
Oct. 16, 2001
Eiji Hamamoto, Ibaraki, JP;
Youichirou Sugino, Ibaraki, JP;
Kazuki Tsuchimoto, Ibaraki, JP;
Senri Kondou, Ibaraki, JP;
Seiichi Kusumoto, Ibaraki, JP;
Eiji Hamamoto, Ibaraki, JP;
Youichirou Sugino, Ibaraki, JP;
Kazuki Tsuchimoto, Ibaraki, JP;
Senri Kondou, Ibaraki, JP;
Seiichi Kusumoto, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki, JP;
Abstract
A polarizing plate produced according to the present invention includes a polarizing film and a protective layer bonded to a surface of the polarizing film, where the protective layer has no irregularities like record grooves caused by stretching of the polarizing film, so that the polarizing plate with an improved appearance provides clear images even when reflected light is applied. Such a polarizing plate is produced by laminating a protective layer on at least one surface of a polarizer while limiting moisture content of the polarizer to a range from 5% to 30%. A value for the moisture content is obtained by a calculation based on an equation of moisture content (%)=[(A−B)/B]×100, when A denotes weight of the polarizer before bonding and B denotes weight of the polarizer after being kept in a dryer of 120° C. for seven hours.