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. 23, 2012
Filed:
May. 10, 2011
Takashi Washizu, Hino, JP;
Takuji Hatano, Suita, JP;
Yoshihito Taguchi, Amagasaki, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
A wavelength conversion element, including: a substrate; and a ceramic layer formed on the substrate, the ceramic layer being obtained by sintering a ceramic precursor; wherein the ceramic precursor is a compound selected from the group composed of alkoxysilane and a compound having a plurality of siloxane structures; a phosphor and particles of an oxide are mixed with the ceramic precursor; the phosphor has particle diameters within a range of from 1 μm to 50 μm and a concentration of the phosphor in the ceramic layer is equal to or more than 40 wt % and less than 95 wt %; and the particles of the oxide have primary particle diameters within a range of from 0.001 μm to 30 μm and a concentration within a range of from 0.5 wt % to 20 wt % in the ceramic layer.