Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2005-11-10
2009-12-01
Tarazano, D. Lawrence (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S040000, C257S102000, C257SE51044, C544S225000, C546S004000, C548S101000, C548S103000, C548S402000
Reexamination Certificate
active
07625639
ABSTRACT:
A metal-complex compound which comprises a tridentate chelate ligand having a specified partial structure. An organic electroluminescence device which comprises at least one organic thin film layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein the organic thin film layer comprises the metal-complex compound, which emits light by applying an electric voltage between the pair of electrode. The present invention provides an organic EL device which emits blue light with high purity and of short wavelength with an enhanced efficiency of light emission.
REFERENCES:
patent: 2001/0019782 (2001-09-01), Igarashi et al.
patent: WO 03/087258 (2003-10-01), None
Yoshikawa et al. “Electrochemical and phosphorescent properties of new mixed-ligand Ir(III) complexes with both terpyridine and various bipyridine derivatives.” Analytical Sciences, 2003, vol. 19, pp. 761-765.
Wilkinson et al. “Synthesis and luminescent of a charge-neutral, cyclometalated iridium(III) complex containing NΛCΛN- and CΛNΛC-coordinating terdentate ligands.” Inorg. Chem. 2004, vol. 43, pp. 6513-6515.
Patent Abstracts of Japan, JP 2001-270893, Oct. 2, 2001.
Patent Abstracts of Japan, JP 2003-147345, May 21, 2003.
Patent Abstracts of Japan, JP 2003-308978, Oct. 31, 2003 (with corresponding WO 03/087258 A1).
U.S. Appl. No. 11/269,808, Nov. 9, 2005, Haga, et al.
Tomona Yutaka, et al, “Syntheses and Properties of Emissive Iridium(III) Complexes with Tridentate Benzimidazole Derivatives”, Inorganic Chemistry, vol. 44, No. 13, XP-002455102, 2005, pp. 4737-4746.
U.S. Appl. No. 11/515,777, filed Sep. 6, 2006, Haga, et al.
Haga Masa-aki
Okuda Fumio
Chuo University
Idemitsu Kosan Co. Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Tarazano D. Lawrence
Wilson Michael
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