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. 06, 2013
Filed:
Jun. 28, 2012
Makoto Izumi, Osaka, JP;
Kazunori Annen, Osaka, JP;
Makoto Izumi, Osaka, JP;
Kazunori Annen, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Abstract
A light emitting device includes a light emitting element that emits primary light and a wavelength conversion unit that absorbs part of the primary light and emits secondary light. In the light emitting device, the wavelength conversion unit includes a plurality of types of phosphors that emit secondary light having wavelengths different from each other, and at least one of the phosphors is a covered phosphor covered with a surface film that reflects secondary light emitted from a phosphor other than the covered phosphor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile