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:
Jul. 15, 2014
Filed:
Nov. 14, 2013
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Takahiro Hamada, Osaka, JP;
Nobuyasu Suzuki, Osaka, JP;
Kenji Orita, Osaka, JP;
Nobuaki Nagao, Gifu, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21K 99/00 (2010.01); H01L 33/50 (2010.01);
U.S. Cl.
CPC ...
Abstract
A wavelength conversion element includes: a plurality of phosphor particles; a first matrix located among a part of the plurality of phosphor particles and formed of zinc oxide in a c-axis orientation; and a second matrix located among a remaining part of the plurality of phosphor particles and formed of a material having a refractive index that is lower than a refractive index of the zinc oxide.