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:
Dec. 04, 2018
Filed:
Feb. 03, 2016
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Daisuke Nakayama, Fukuroi, JP;
MINEBEA CO., LTD., Kitasaku-gun, JP;
Abstract
A planar lighting device includes: a light source; a light-guiding plate including: a light incident end face on which the light source is arranged; a facing end face facing the light incident end face; and a pair of principal faces that couple the light incident end face and the facing end face with each other; and plurality of optical elements that are provided on at least one of the pair of the principal faces and include a plurality of first elements each having an unevenly shaped part in which recesses and/or projections are repeatedly arranged, the plurality of the first elements being arranged intermittently from the light incident end face toward the facing end face.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile