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:
Mar. 06, 2007
Filed:
Aug. 05, 2004
Applicant:
Takashi Shimura, Yamanashi-ken, JP;
Inventor:
Takashi Shimura, Yamanashi-ken, JP;
Assignee:
Citizen Electronics Co., Ltd., Yamanashi-Ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lighting device has a light guide plate having light projecting surfaces at least on the one sides thereof, and at least one brightness enhancement film having a plurality of prisms and disposed adjacently to one of both sides of the light guide plate.