Appeal No. 2001-2124
Application No. 09/416,914
sulfide phosphor.
14. A method of coating inorganic particles comprising:
dry mixing inorganic particles having a particle size of about 1 to 100 micrometers
with coating particles having a particle size of about 1 to 100 nanometers, and
firing the mixture at a temperature high enough to soften or melt the nanometer-sized
coating particles.
17. A method for coating inorganic particles comprising:
dry mixing MS: Eu phosphor particles where M is a calcium or strontium having a
particle size of from 1 to 100 micrometers with silica particles having a particle size of 2 to
50 nanometers; and
firing the mixture of phosphor particles and silica particles to a temperature of at least
the softening point for said silica particles.
THE REFERENCES OF RECORD
As evidence of obviousness, the examiner relies upon the following references:
Lehmann 3,617,332 Nov. 2, 1971
Schulze 4,684,540 Aug. 4, 1987
Hase et al. (Hase) 4,874,985 Oct. 17, 1989
Aihara et al. (Aihara) 5,330,791 Jul. 19, 1994
Umeya et al. (Umeya) 5,489,449 Feb. 6, 1996
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