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. 12, 2017
Filed:
Aug. 18, 2014
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Natsuki Sato, Osaka, JP;
Shozo Oshio, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); C09K 11/77 (2006.01); H01L 33/50 (2010.01);
U.S. Cl.
CPC ...
C09K 11/7774 (2013.01); H01L 33/502 (2013.01); H01L 2224/45144 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48227 (2013.01); H01L 2924/181 (2013.01);
Abstract
The phosphor has a broad excitation band provided by Cein an excitation spectrum. The excitation band has a peak in a range between 400 nm and 470 nm inclusive. The phosphor has, as an emission spectrum, a broad emission component provided by Cewhich has an emission peak wavelength of 510 nm or more to less than 570 nm and a linear emission component provided by Tbwhich has an emission peak wavelength of 535 nm or more to less than 560 nm. The intensity of the emission spectrum shows the maximum at the wavelength of the linear emission component provided by Tb.