Patent · US Active

Method for preparing phosphor

US8883041B2 · kind B2 · utility

0Cited by

3References

1Claims

0Family size

Assignee

KOITO MANUFACTURING CO., LTD. · JP

Inventors

Yasutaka Sasaki · Tokyo, JP
Hisayoshi Daicho · Shizuoka, JP
Takeshi Iwasaki · Funabashi, JP

Key dates

Filing date	Aug 7, 2013
Grant date	Nov 11, 2014
Priority date	—
Expiry date	Aug 7, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K11/77342
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A method for preparing a phosphor that comprises a crystalline oxide having M1O3 (M1 is a tetravalent metallic element) as a main framework thereof and essentially including a halogen element X (X is at least one element selected from a group consisting of F, Cl, Br, and I) and divalent metal ions M2 and Eu2+, includes using a compound represented by a compositional formula NH4X as a starting material when synthesizing the phosphor. At least a compound represented by a compositional formula NH4Cl may be used as the starting material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.