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:
Oct. 20, 2015
Filed:
Nov. 09, 2012
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Yoshitomo Kumai, Okaya, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1335 (2013.01); G02B 5/30 (2013.01); G02B 5/3058 (2013.01); G02F 1/133528 (2013.01); G02F 2001/133548 (2013.01);
Abstract
A polarizer includes a first grating and a second grating. The second grating contains at least one of chromium nitride, tungsten nitride, and tantalum nitride.