Invention Grant
- Patent Title: Phosphor particle, composite, light-emitting device, and method for producing phosphor particle
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Application No.: US17599631Application Date: 2020-03-24
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Publication No.: US11485906B2Publication Date: 2022-11-01
- 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: JPJP2019-069106 20190329
- International Application: PCT/JP2020/013104 WO 20200324
- International Announcement: WO2020/203485 WO 20201008
- Main IPC: C09K11/77
- IPC: C09K11/77 ; C01B21/082 ; C09K11/02 ; H01L33/50
Abstract:
An α-sialon phosphor particle containing Eu. At least one minute recess 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
- US20220089946A1 PHOSPHOR PARTICLE, COMPOSITE, LIGHT-EMITTING DEVICE, AND METHOD FOR PRODUCING PHOSPHOR PARTICLE Public/Granted day:2022-03-24
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