Invention Grant
- Patent Title: Luminescent material and light-emitting device
- Patent Title (中): 发光材料和发光装置
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Application No.: US12207771Application Date: 2008-09-10
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Publication No.: US08475680B2Publication Date: 2013-07-02
- Inventor: Yumi Fukuda , Masaaki Tamatani , Hironori Asai , Ryosuke Hiramatsu , Junichi Tatami , Katsutoshi Komeya , Toru Wakihara
- Applicant: Yumi Fukuda , Hironori Asai , Ryosuke Hiramatsu , Junichi Tatami , Katsutoshi Komeya , Toru Wakihara , Katsuko Tamatani
- 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: JP2006-065603 20060310
- Main IPC: C09K11/66
- IPC: C09K11/66 ; C09K11/08 ; C09K11/02 ; C09K11/77
Abstract:
A luminescent material which is featured in that it exhibits an emission peak at a wavelength ranging from 490 to 580 nm as it is excited by light having a wavelength ranging from 250 to 500 nm and that it has a composition represented by the following general formula (2): (M1-xRx)a2AlSib2Oc2Nd2 (2) (In the general formula (2), M is at least one metallic element excluding Si and Al, R is a luminescence center element, and x, a2, b2, c2 and d2 satisfy the following relationships: 0
Public/Granted literature
- US20090096361A1 LUMINESCENT MATERIAL AND LIGHT-EMITTING DEVICE Public/Granted day:2009-04-16
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