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:
Aug. 26, 2014
Filed:
Jul. 03, 2008
Applicants:
Kanto Kobayashi, Ibaraki, JP;
Kanji Nishida, Ibaraki, JP;
Naoki Tomoguchi, Ibaraki, JP;
Youichirou Sugino, Ibaraki, JP;
Takaichi Amano, Ibaraki, JP;
Kazuo Kitada, Ibaraki, JP;
Inventors:
Kanto Kobayashi, Ibaraki, JP;
Kanji Nishida, Ibaraki, JP;
Naoki Tomoguchi, Ibaraki, JP;
Youichirou Sugino, Ibaraki, JP;
Takaichi Amano, Ibaraki, JP;
Kazuo Kitada, Ibaraki, JP;
Assignee:
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
An end face of a polarization plate cut by laser becomes a substantially flat surface having only sloping micro waviness because of having been melted once to be solidified. Since the surface has few stress-concentrated parts that may cause microcracks, this prevents microcracks from easily being produced.