Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Reexamination Certificate
2007-06-28
2010-10-26
Hendrickson, Stuart (Department: 1793)
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
C252S30140F, C423S299000, C423S305000
Reexamination Certificate
active
07820074
ABSTRACT:
A phosphor is formed with a glass coating layer on a surface of a phosphor grain to have improved moisture and/or thermal stability. A method for manufacturing the phosphor comprises preparing phosphor grains excitable by light, and forming a glass coating layer on a surface of each phosphor grain. The glass coating layer may be formed by mixing the phosphor grains with a glass composition; heat-treating a mixture of the phosphor grains and the glass composition to make the glass composition melt and surround the phosphor grains; and cooling and breaking the heat-treated mixture to provide phosphors, each comprising the phosphor grain having the glass coating layer formed on a surface of the phosphor grain.
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Yukiya Hakuta, Tsukasa Haganuma, Kiwamu Sue, Tadafumi Adschiri, Kunio Arai, Continuous production of phosphor YAG:Tb nanoparticles by hydrothermal synthesis in supercritical water, Materials Research Bulletin, vol. 38, Issue 7, Jun. 19, 2003, pp. 1257-1265, ISSN 0025-5408, DOI: 10.1016/S0025-5408(03)00088-6.
Chang Mi Youn
Kim Kyung Nam
Matsuoka Tomizo
H.C. Park & Associates PLC
Hendrickson Stuart
Rump Richard M
Seoul Semiconductor Co. Ltd.
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