Invention Grant
- Patent Title: Fluorescent material and method for producing same
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Application No.: US18154147Application Date: 2023-01-13
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Publication No.: US11773323B2Publication Date: 2023-10-03
- Inventor: Shigeki Yoshida , Takayuki Shinohara , Hiroyuki Watanabe
- 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: JP 22011018 2022.01.27
- Main IPC: C09K11/77
- IPC: C09K11/77 ; G03B21/20

Abstract:
Provided is a fluorescent material with high brightness. The fluorescent material includes a nitride fluorescent material comprising La, Ce, Si, and N; and a first phosphorus compound disposed on a surface of the nitride fluorescent material. The first phosphorus compound includes at least one selected from the group consisting of lanthanum phosphate, lanthanum hydrogen phosphate, and hydrates thereof. A content of phosphorus atoms in the fluorescent material is 0.07% by mass or higher and 0.8% by mass or lower.
Public/Granted literature
- US20230235223A1 FLUORESCENT MATERIAL AND METHOD FOR PRODUCING SAME Public/Granted day:2023-07-27
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