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. 01, 2019
Filed:
Dec. 07, 2016
Nichia Corporation, Anan-shi, Tokushima, JP;
Naoto Fujioka, Tokushima, JP;
NICHIA CORPORATION, Anan-shi, JP;
Abstract
A method of producing hybrid fluorescent material includes dispersing LuAlO:Ce fluorescent material particles in a first solution; mixing the first solution in a second solution, the second solution including a mixture of a first metallic salt containing at least one element selected from the group consisting of yttrium, gadolinium, and terbium, a second metallic salt containing aluminum and/or gallium, and a third metallic salt containing cerium, wherein the mixing attaches (Y,Gd,Tb)(Al,Ga)O:Ce fluorescent material precursor particles on surfaces of the LuAlO:Ce fluorescent material particles to obtain a hybrid fluorescent material precursor; separating the hybrid fluorescent material precursor particles from the first and second solutions; and calcining the hybrid fluorescent material precursor particles to obtain a hybrid fluorescent material of LuAlO:Ce fluorescent material particles covered by (Y,Gd,Tb)(Al,Ga)O:Ce fluorescent material.