Title:
光源用蛍光体材料およびその製造方法
Document Type and Number:
Japanese Patent JP6966469
Kind Code:
B2
Abstract:
A method includes mixing a first fluoride phosphor powder that is doped with tetravalent manganese with a treatment solution for a designated period of time, stopping the mixing to allow the fluoride phosphor powder to settle, removing at least some liquid that has separated from the first fluoride phosphor powder, repeating (a) the mixing, (b) the stopping of the mixing, and (c) removing at least some of the liquid during one or more additional cycles, and obtaining a second fluoride phosphor powder following the repeating of the mixing, the stopping of the mixing, and the removing of at least some of the liquid. The second fluoride phosphor powder includes a reduced amount of the manganese relative to the first fluoride phosphor powder.
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Inventors:
Do, Fan Min
Beards, William Winder
Cohen, William Irwin
Nelson, Clark David
Beards, William Winder
Cohen, William Irwin
Nelson, Clark David
Application Number:
JP2018553478A
Publication Date:
November 17, 2021
Filing Date:
April 10, 2017
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
C09K11/08; C09K11/61; C09K11/64; C09K11/66; C09K11/67; C09K11/85
Domestic Patent References:
| JP2014514388A |
Foreign References:
| US20150166887 | ||||
| US20150054400 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Takuto Tanaka
Yoshihiro City
Hirokazu Ogura
Takuto Tanaka
Yoshihiro City
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