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. 22, 2007
Filed:
Apr. 23, 2004
Applicants:
Hiroaki Mizushima, Ibaraki, JP;
Tadayuki Kameyama, Ibaraki, JP;
Ken Aoki, Ibaraki, JP;
Morimasa Wada, Ibaraki, JP;
Yoichiro Sugino, Ibaraki, JP;
Kenji Shimizu, Ibaraki, JP;
Inventors:
Hiroaki Mizushima, Ibaraki, JP;
Tadayuki Kameyama, Ibaraki, JP;
Ken Aoki, Ibaraki, JP;
Morimasa Wada, Ibaraki, JP;
Yoichiro Sugino, Ibaraki, JP;
Kenji Shimizu, Ibaraki, JP;
Assignee:
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing a polarizing film including a step of stretching a raw film, wherein the ratio (L/W) of stretching distance (L) to width of initial raw film (W) is from 0.5 to 30.