Invention Grant
- Patent Title: Method for producing ceramic composite material, ceramic composite material, and light emitting device
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Application No.: US16375476Application Date: 2019-04-04
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Publication No.: US11149193B2Publication Date: 2021-10-19
- Inventor: Hirofumi Ooguri , Tomoya Fukui , Tadayoshi Yanagihara , Shigeki Yoshida
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan
- Agency: Hunton Andrews Kurth LLP
- Priority: JPJP2018-073528 20180406,JPJP2018-160831 20180829
- Main IPC: C09K11/02
- IPC: C09K11/02 ; C09K11/77 ; C09K11/08 ; C04B35/117 ; C04B35/593 ; C04B35/645 ; H01L33/50

Abstract:
Provided are a method for producing a ceramic composite material that has a high light emission intensity, a ceramic composite material, and a light emitting device. The method for producing a ceramic composite material, includes: preparing a green body containing a nitride fluorescent material having a composition represented by the following chemical formula (I) and aluminum oxide particles mixed with each other; and performing primary sintering the green body at a temperature in a range of 1,250° C. or more and 1,600° C. or less to provide a first sintered body: MwLn1xAyNz (I) wherein in the chemical formula (I), M represents at least one element selected from the group consisting of Ce and Pr; Ln1 represents at least one element selected from the group consisting of Sc, Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; A represents at least one element selected from the group consisting of Si and B; and w, x, y, and z each satisfy 0
Public/Granted literature
- US20190309221A1 METHOD FOR PRODUCING CERAMIC COMPOSITE MATERIAL, CERAMIC COMPOSITE MATERIAL, AND LIGHT EMITTING DEVICE Public/Granted day:2019-10-10
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