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:
May. 15, 2012
Filed:
Jun. 30, 2006
Kyung Nam Kim, Seoul, KR;
Sang MI Park, Gunpo, KR;
Tomizo Matsuoka, Seoul, KR;
Seoul Semiconductor Co., Ltd., Seoul, KR;
Abstract
The present invention provides a red phosphor, a method for manufacturing the red phosphor and a light emitting device using the red phosphor, in which the red phosphor is expressed as a chemical formula of (Ca,Sr)EuPbS, wherein 0.0005≦x≦0.01 and 0.001≦y≦0.05. According to the present invention, the red phosphor has improved reliability and luminous efficiency and thus be used to obtain a light emitting device with more excellent color reproducibility and optical characteristic.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile