Title:
SILICA FILM COATED WITH LIGHT EMITTING GRAIN
Document Type and Number:
Japanese Patent JP2002069442
Kind Code:
A
Abstract:
To provide a novel light emitting grain having improved moisture resistance and equal to an uncovered one in an initial luminous intensity of luminescent light and covered with uniform and fine silica free from sticking of grains and excellent in dispersion and moldability.
The light emitting grain coated with a specified uniform and fine silica film, or a light emitting grain having the silica film the surface of which is further nitrified or fluoridized.
Inventors:
ISHII NOBUAKI
WADA KOICHI
HOSODA KIICHI
WADA KOICHI
HOSODA KIICHI
Application Number:
JP2000265528A
Publication Date:
March 08, 2002
Filing Date:
September 01, 2000
Export Citation:
Assignee:
SHOWA DENKO KK
International Classes:
H05B33/14; C09K11/08; C09K11/56; (IPC1-7): C09K11/08; C09K11/56; H05B33/14
Attorney, Agent or Firm:
Shinji Kakinuma
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