Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-12-18
2007-12-18
Cano, Milton I. (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S040000, C257SE51026, C257SE51027, C257SE51028, C257SE51049, C257SE51050, C548S420000, C548S457000
Reexamination Certificate
active
10954302
ABSTRACT:
The present invention is related to a cyclopentaphenanthrene-based compound and an organic electroluminescence device using the same. In particular, the cyclopentaphenanthrene-based compound offers several advantages, including easy processibility, high solubility, superior color purity, color stability and thermal stability. Moreover, the cyclopentaphenanthrene-based compound may be used not only as a material for forming an organic layer of an organic electroluminescence device, particularly, a light-emitting layer, but also as a material of an organic pigment or nonlinear optical substance.
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patent: 5763636 (1998-06-01), Kreuder et al.
patent: 5859211 (1999-01-01), Kreuder et al.
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S. Welter, et al., “Electroluminescent Device with Reversible Switching Between Red and Green Emission” NATURE, Jan. 2, 2003, vol. 421, pp. 54-57.
Kim Kyu-Sik
Lee Ji-Hoon
Paek Woon-Jung
Park Sang-Hoon
Pu Lyong-Sun
Cano Milton I.
Crouse Brett A
H.C. Park & Associates PLC
Samsung SDI & Co., Ltd.
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