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. 25, 2012
Filed:
May. 26, 2010
Toshitaka Nakamura, Oceanside, CA (US);
Hironaka Fujii, Carlsbad, CA (US);
Hiroaki Miyagawa, Oceanside, CA (US);
Rajesh Mukherjee, Irvine, CA (US);
Bin Zhang, San Diego, CA (US);
Amane Mochizuki, San Diego, CA (US);
Toshitaka Nakamura, Oceanside, CA (US);
Hironaka Fujii, Carlsbad, CA (US);
Hiroaki Miyagawa, Oceanside, CA (US);
Rajesh Mukherjee, Irvine, CA (US);
Bin Zhang, San Diego, CA (US);
Amane Mochizuki, San Diego, CA (US);
Nitto Denko Corporation, Osaka, JP;
Abstract
Some embodiments provide luminescent ceramics which have a lower amount of dopant than conventional luminescent ceramics. In some embodiments, the luminescent ceramic comprises a host material comprising a rare earth element and at least one rare earth dopant, wherein the rare earth dopant may be about 0.01% to 0.5% of the rare earth atoms present in the material. Some embodiments provide luminescent ceramic comprising: a polycrystalline phosphor represented by the formula (AE)BO. Some embodiments provide a light-emitting device comprising a luminescent ceramic disclosed herein.