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:
Feb. 17, 2015
Filed:
Dec. 30, 2013
Applicant:
Panasonic Corporation, Kadoma-shi, Osaka, JP;
Inventors:
Shozo Oshio, Osaka, JP;
Kojiro Okuyama, Nara, JP;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01); H01J 63/04 (2006.01); C09K 11/77 (2006.01); F21K 99/00 (2010.01); H01L 33/50 (2010.01);
U.S. Cl.
CPC ...
C09K 11/7792 (2013.01); C09K 11/7774 (2013.01); C09K 11/7706 (2013.01); F21K 9/50 (2013.01); H01L 33/502 (2013.01);
Abstract
The present invention provides a new phosphor with a controllable emission wavelength without using a number of rare and expensive raw materials in forming the composition. The phosphor includes a compound including a fluorescent ion and having a garnet structure including a rare earth element, aluminum, and oxygen. The compound has such a composition that a combination of the rare earth element and the aluminum of the compound is partially replaced with a combination of alkaline earth metal and zirconium (Zr) or alkaline earth metal and hafnium (Hf).