Invention Grant
- Patent Title: Fluoride phosphor and light-emitting device using same
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Application No.: US16622783Application Date: 2018-06-12
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Publication No.: US11114589B2Publication Date: 2021-09-07
- Inventor: Masayoshi Ichikawa , Ryosuke Kondo , Hideyuki Emoto
- Applicant: Denka Company Limited
- Applicant Address: JP Tokyo
- Assignee: Denka Company Limited
- Current Assignee: Denka Company Limited
- Current Assignee Address: JP Tokyo
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: JPJP2017-117160 20170614
- International Application: PCT/JP2018/022451 WO 20180612
- International Announcement: WO2018/230569 WO 20181220
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L33/26
Abstract:
Provided is a fluoride phosphor that has a good external quantum efficiency and is suitable for stably producing white LEDs. The fluoride phosphor has a composition represented by a general formula (1) and a repose angle of 30° or more and 60° or less. general formula: A2M(1-n)F6:Mn4+n (1), wherein 0
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