Invention Grant
- Patent Title: Phosphor, light-emitting apparatus including the same, and phosphor production method
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Application No.: US15148054Application Date: 2016-05-06
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Publication No.: US10032965B2Publication Date: 2018-07-24
- Inventor: Takashi Kaide , Shoji Hosokawa
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-shi
- Agency: Hunton Andrews Kurth LLP
- Priority: JP2013-094771 20130426; JP2014-007917 20140120
- Main IPC: C09K11/59
- IPC: C09K11/59 ; H01L33/50 ; C09K11/77
Abstract:
A phosphor, which is represented by the general formula containing M, Ce, Pr, Si, and N, is provided. M is at least one element selected from the group consisting of La, Y, Tb and Lu. A molar ratio of M is greater than 2.0 and smaller than 3.5. A molar ratio of Ce is greater than 0 and smaller than 1.0. A molar ratio of Pr is greater than 0 and smaller than 0.05. A molar ratio of N is greater than 10 and smaller than 12, under the condition that a molar ratio of Si is set to 6. The phosphor further contains 10 to 10,000 ppm of fluorine.
Public/Granted literature
- US20160247980A1 PHOSPHOR, LIGHT-EMITTING APPARATUS INCLUDING THE SAME, AND PHOSPHOR PRODUCTION METHOD Public/Granted day:2016-08-25
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