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. 01, 2015
Filed:
Apr. 17, 2014
Murata Manufacturing Co., Ltd., Nagaokakyo-Shi, Kyoto-fu, JP;
Satoshi Kuretake, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Abstract
A light-emitting element that includes a first wavelength conversion unit and a second wavelength conversion unit. The first wavelength conversion unit includes a ceramic containing, as a primary component, a pyrochlore-type compound represented by ABO. The second wavelength conversion unit includes a ceramic containing, as a primary component, a pyrochlore-type compound represented by ABO. Aand Aeach include at least one element selected from the group consisting of La, Y, Gd, Yb and Lu, and 0.001 mol % to 5 mol % of Bi. Band Beach include at least one element selected from the group consisting of Sn, Zr and Hf. The content of La in Ais higher than the content of La in A. The contents of Y, Gd, and Lu in Aare higher than the contents of Y, Gd and Lu in A.