Title:
METHOD FOR PRODUCING SILICATE PHOSPHOR AND VACUUM ULTRAVIOLET EXCITED LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2005/083035
Kind Code:
A1
Abstract:
Disclosed is a method for producing a silicate phosphor. Also disclosed is a vacuum ultraviolet excited light-emitting device. The method for producing a silicate phosphor includes (i) a step for mixing a metal compound and a halide, and (ii) a step for firing the resulting mixture. The silicate phosphor contains a compound which is obtained by this method and represented by the formula (1) below, and at least one selected from the group consisting of Eu and Mn as an activator. mM1O·nM2O·2SiO2 (1) [In the formula (1), M1 represents at least one selected from the group consisting of Ca, Sr and Ba; M2 represents at least one selected from the group consisting of Mg and Zn; m is not less than 0.5 and not more than 3.5; and n is not less than 0.5 and not more than 2.5.]
Inventors:
NAKAMURA YOSHIKO (JP)
ONO KEIJI (JP)
MIYAZAKI SUSUMU (JP)
ONO KEIJI (JP)
MIYAZAKI SUSUMU (JP)
Application Number:
PCT/JP2005/003091
Publication Date:
September 09, 2005
Filing Date:
February 18, 2005
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
NAKAMURA YOSHIKO (JP)
ONO KEIJI (JP)
MIYAZAKI SUSUMU (JP)
NAKAMURA YOSHIKO (JP)
ONO KEIJI (JP)
MIYAZAKI SUSUMU (JP)
International Classes:
C09K11/08; C09K11/59; H01J11/02; (IPC1-7): C09K11/08; C09K11/59; H01J11/02
Domestic Patent References:
| WO2002083814A1 | 2002-10-24 |
Foreign References:
| JPS646087A | 1989-01-10 | |||
| JPH04293990A | 1992-10-19 | |||
| JPS56155280A | 1981-12-01 | |||
| JPS5210880A | 1977-01-27 | |||
| JP2004131677A | 2004-04-30 |
Attorney, Agent or Firm:
Enomoto, Masayuki c/o Sumitomo Chemical Intellectual Property Service (Limited 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 50, JP)
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