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:
Jan. 26, 2010
Filed:
Apr. 19, 2004
Applicants:
Yuuji Saiki, Ibaraki, JP;
Hideyuki Usui, Ibaraki, JP;
Takahisa Konishi, Ibaraki, JP;
Takemichi Yoshida, Ibaraki, JP;
Inventors:
Yuuji Saiki, Ibaraki, JP;
Hideyuki Usui, Ibaraki, JP;
Takahisa Konishi, Ibaraki, JP;
Takemichi Yoshida, Ibaraki, JP;
Assignee:
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polarizer of the invention comprises a polyvinyl alcohol-based film which is at least dyed with at least iodine and uniaxially stretched, having a single transmittance of 43% or more, a polarizing efficiency of 99.9% or more, and a dichroic ratio of 30 or more, wherein the dichroic ratio is calculated from a parallel transmittance (Tp) and a crossed transmittance (Tc) at a wavelength of 440 nm, and have good hue.