Invention Grant
- Patent Title: Phosphor particle, composite, light-emitting device, and method for producing phosphor particle
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Application No.: US17599651Application Date: 2020-03-24
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Publication No.: US11339325B2Publication Date: 2022-05-24
- Inventor: Tomohiro Nomiyama , Yusuke Takeda , Marina Takamura , Tatsuya Okuzono , Masaru Miyazaki , Shintaro Watanabe
- Applicant: DENKA COMPANY LIMITED
- Applicant Address: JP Tokyo
- Assignee: DENKA COMPANY LIMITED
- Current Assignee: DENKA COMPANY LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JPJP2019-069104 20190329
- International Application: PCT/JP2020/013097 WO 20200324
- International Announcement: WO2020/203483 WO 20201008
- Main IPC: H01J1/62
- IPC: H01J1/62 ; C09K11/78 ; C09K11/54 ; C09K11/77 ; H01L33/50 ; C01F17/34
Abstract:
An α-sialon phosphor particle containing Eu. At least one slit is formed on a surface of the α-sialon phosphor particle. The α-sialon phosphor particle is preferably produced by undergoing a raw material mixing step, a heating step, a pulverizing step, and an acid treatment step.
Public/Granted literature
- US20220089947A1 PHOSPHOR PARTICLE, COMPOSITE, LIGHT-EMITTING DEVICE, AND METHOD FOR PRODUCING PHOSPHOR PARTICLE Public/Granted day:2022-03-24
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