METHOD FOR PRODUCING ALUMINATE PHOSPHOR AND ALUMINATE PHOSPHOR

Title:

METHOD FOR PRODUCING ALUMINATE PHOSPHOR AND ALUMINATE PHOSPHOR

Document Type and Number:

WIPO Patent Application WO/2007/105598

Kind Code:

A1

Abstract:

Disclosed is a novel aluminate phosphor which emits blue fluorescence with high color purity and high luminance in a certain wavelength range through ultraviolet light excitation and electron beam excitation. Also disclosed is a useful method for producing such an aluminate phosphor. Specifically disclosed is a method for producing an aluminate phosphor, which comprises a step wherein an aluminate represented by the following composition formula: 7(Sr1-xEux)O·yAl2O3 (wherein x and y satisfy 0 < x ≤ 0.5 and 1 ≤ y ≤ 36) is heated in a reducing atmosphere while being in contact with magnesium oxide.

Inventors:

SAITOH HIDETOSHI (JP)
TAHARA SHUNSUKE (JP)
NAMBU NOBUYOSHI (JP)
NAKAMURA ATSUSHI (JP)
ITO HIROSHI (JP)

Application Number:

PCT/JP2007/054558

Publication Date:

September 20, 2007

Filing Date:

March 08, 2007

Export Citation:

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Assignee:

UNIV NAGAOKA TECHNOLOGY (JP)
CHUBU CHELEST CO LTD (JP)
CHELEST CORP (JP)
SAITOH HIDETOSHI (JP)
TAHARA SHUNSUKE (JP)
NAMBU NOBUYOSHI (JP)
NAKAMURA ATSUSHI (JP)
ITO HIROSHI (JP)

International Classes:

C09K11/64; C09K11/08

Domestic Patent References:

WO2005090513A1	2005-09-29
WO2005090513A1	2005-09-29

Foreign References:

JP2004323576A	2004-11-18
JPS5222579A	1977-02-19
JPH09286981A	1997-11-04
JPS5993783A	1984-05-30
JPS5222836B2	1977-06-20
JPH08115673A	1996-05-07
JP2000226574A	2000-08-15
JP2001240856A	2001-09-04
JPH06240252A	1994-08-30
JP2000290647A	2000-10-17
JPH0711250A	1995-01-13
JPH0873845A	1996-03-19
JP2000063823A	2000-02-29

Other References: