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:
Sep. 08, 2015
Filed:
Sep. 27, 2011
Bong Goo Yun, Gangwon-Do, KR;
Woo Jung Park, Gyeonggi-do, KR;
Won Young Song, Seoul, KR;
Jeong Eun Yun, Gyeonggi-do, KR;
Tae Min Ahn, Incheon, KR;
Chul Soo Yoon, Gyeonggi-do, KR;
Young IL Kim, Gyeongsangbuk-do, KR;
Bong Goo Yun, Gangwon-Do, KR;
Woo Jung Park, Gyeonggi-do, KR;
Won Young Song, Seoul, KR;
Jeong Eun Yun, Gyeonggi-do, KR;
Tae Min Ahn, Incheon, KR;
Chul Soo Yoon, Gyeonggi-do, KR;
Young Il Kim, Gyeongsangbuk-do, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-do, KR;
Abstract
Disclosed is a method for preparing a fluorescent substance, which is represented by the formula MEuSiON(M=SrBaCa, 0 x 0.5, 0 y 0.2, 0<z 0.3, 2 a 2.5, 1.5 b 2, and 2 c 2.5), and the present invention provides the method for preparing a nitride-based fluorescent substance comprising the following steps: a preliminary firing step further comprising a first firing step of creating a first firing product by mixing and firing a first precursor group including an M precursor and a first silicon precursor, and a second firing step of creating a second firing product by mixing and firing a second precursor group including an Eu precursor and a second silicon precursor; and a secondary firing step of mixing and firing the first firing product and the second firing product.