Invention Grant
- Patent Title: Blue light-emitting phosphor and light-emitting device using the blue light-emitting phosphor
- Patent Title (中): 蓝色发光荧光体和使用蓝色发光荧光体的发光装置
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Application No.: US13626071Application Date: 2012-09-25
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Publication No.: US09011718B2Publication Date: 2015-04-21
- Inventor: Kouichi Fukuda , Jin Amagai , Seiji Noguchi , Toru Inagaki , Masaki Tanaka
- Applicant: Ube Material Industries, Ltd.
- Applicant Address: JP Ube-shi, Yamaguchi
- Assignee: Ube Material Industries, Ltd.
- Current Assignee: Ube Material Industries, Ltd.
- Current Assignee Address: JP Ube-shi, Yamaguchi
- Agency: Nixon Peabody LLP
- Agent Jeffrey L. Costellia
- Main IPC: C09K11/55
- IPC: C09K11/55 ; C09K11/59 ; C09K11/77 ; H01L33/50
Abstract:
The emission strength of a light released from a blue light-emitting phosphor having a merwinite crystal structure and an elemental formula of (Sr,Ca)3MgSi2O8 activated with Eu in which a molar ratio of Sr and Ca is in the range of 1:0.10 to 1:0.30 is stable in a wide temperature range.
Public/Granted literature
- US20140084780A1 BLUE LIGHT-EMITTING PHOSPHOR AND LIGHT-EMITTING DEVICE USING THE BLUE LIGHT-EMITTING PHOSPHOR Public/Granted day:2014-03-27
Information query
