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:
Jan. 26, 2010
Filed:
Mar. 28, 2006
Applicants:
Kwang Wook Choi, Daejeon Metropolitan, KR;
DO Hoon Kim, Daejeon Metropolitan, KR;
Ick Soon Kwak, Daejeon Metropolitan, KR;
Tae Hyun Kwon, Daejeon Metropolitan, KR;
Inventors:
Kwang Wook Choi, Daejeon Metropolitan, KR;
Do Hoon Kim, Daejeon Metropolitan, KR;
Ick Soon Kwak, Daejeon Metropolitan, KR;
Tae Hyun Kwon, Daejeon Metropolitan, KR;
Assignee:
Daegoo Electronic Materials Co., Ltd., Kyunggi-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/08 (2006.01); H01J 1/63 (2006.01); G03B 27/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a lamp including a specific phosphor and having good ability to maintain brightness and color coordinates. Particularly, this invention provides a lamp using a phosphor in which a magnetoplumbite phase is epitaxially formed on the surface of a phosphor having a β alumina phase.