Invention Grant
- Patent Title: Red light-emitting fluorescent substance and light-emitting device employing the same
- Patent Title (中): 红色发光荧光体及使用其的发光装置
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Application No.: US13037635Application Date: 2011-03-01
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Publication No.: US08414795B2Publication Date: 2013-04-09
- Inventor: Aoi Okada , Yumi Fukuda , Naotoshi Matsuda , Iwao Mitsuishi , Shinya Nunoue
- Applicant: Aoi Okada , Yumi Fukuda , Naotoshi Matsuda , Iwao Mitsuishi , Shinya Nunoue
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-201710 20100909
- Main IPC: C09K11/64
- IPC: C09K11/64
Abstract:
The embodiment provides a red light-emitting fluorescent substance represented by the following formula (1): (M1-xECx)aM1bAlOcNd (1). In the formula (1), M is an element selected from the group consisting of IA group elements, IIA group elements, IIIA group elements, IIIB group elements, rare earth elements and IVA group elements; EC is an element selected from the group consisting of Eu, Ce, Mn, Tb, Yb, Dy, Sm, Tm, Pr, Nd, Pm, Ho, Er, Cr, Sn, Cu, Zn, As, Ag, Cd, Sb, Au, Hg, Tl, Pb, Bi and Fe; M1 is different from M and is selected from the group consisting of tetravalent elements; and x, a, b, c and d are numbers satisfying the conditions of 0
Public/Granted literature
- US20120062103A1 RED LIGHT-EMITTING FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME Public/Granted day:2012-03-15
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