Compositions – Organic luminescent material containing compositions
Reexamination Certificate
2007-07-31
2007-07-31
Garrett, Dawn L. (Department: 1774)
Compositions
Organic luminescent material containing compositions
C428S690000, C428S917000, C313S504000, C313S506000
Reexamination Certificate
active
10873282
ABSTRACT:
A light emitting device includes a light emitting element and a luminescent medium. The luminescent medium contains a rare earth complex wherein a compound represented by the following formula (1) is employed as a ligand:wherein X and Y are the same or different and are individually O, S or Se; R1, R2, R3 and R4 are the same or different, excluding a situation where R1, R2, R3 and R4 are all the same as each other, and are individually an alkyl or alkoxy group of a linear or branched structure having not more than 20 carbon atoms, a phenyl group, a biphenyl group, a naphthyl group, a heterocyclic group or a substitution product of any of these groups; n is an integer ranging from 2 to 20; and Z and W are the same or different and are individually a hydrogen atom, a deuterium atom, a halogen atom or an alkyl group.
REFERENCES:
patent: 2004/0253477 (2004-12-01), Kathirgamanathan
patent: 2004/0265631 (2004-12-01), Iwanaga et al.
patent: 2003-81986 (2003-03-01), None
Inorganic Chemistry, (2001), vol. 40, pp. 4420-4427.
Journal of Alloys and Compounds, vol. 192, Issues 1-2, Feb. 23, 1993, p. 211-216; abstract and HCAPLUS printout for article.
Koide, Yasuhiro et al. “New chiral lanthanide complexes with optically pure ethanediylbis(t-butylphenylphosphine oxide)”, Journal of Alloys and Compounds, 192(1993), p. 211-216.
Kazuki Nakamura, et al., “Red Emission Narrowing of EU(III) Complexes With Asymmetric Structure”, Kidorui, 42, 2003, pp. 134-135.
Yasuchika Hasegawa, et al., “Detail CD Spectra Analysis in View of Angular Momentum Using Chiral EU(III) Complexes”, Kidoni, 42, (2003), pp. 132-133.
Yasuchika Hasegawa, et al., “How to Enhance the Luminescence of Neodymium (III) in Organic Media”, Kagaku To Kogyo, Chemistry and Industry, vol. 53, No. 2, 2000, pp. 126-130.
Shozo Yanagida, et al., “Luminescence of Neodymium (III) in Organic Media: Ligand Designs for the Remarkable Luminescence and Their Evolution”, Jornal of Organic Synthetic Chemistry Association, vol. 58, No. 10, 2000, pp. 945-955.
Yasuchika Hasegawa, et al., “Enhanced Luminescence of Lathanide(III) Complexed in Polymer Matrices”, Chemistry Letters 1999, pp. 35-36.
S. Yanagida, Phosphor Research Society, The 292ndMeeting Technical Digest 3E09, “Development of Luminescent Materials with Lanthanide Complexes”, Apr. 3, 2002.
S. Yanagida, et al., Phosphor Research Society, The 293rdMeeting Technical Digest, pp. 15-23, “Molecular Designs of Lanthanide Complexes for Remarkable Luminescence and Their Applications”, Jun. 28, 2002.
U.S. Appl. No. 11/052,223, filed Feb. 8, 2005, Iwanaga, et al.
U.S. Appl. No. 11/221,736, filed Sep. 9, 2005, Iwanaga.
U.S. Appl. No. 11/348,412, filed Feb. 7, 2006, Iwanaga et al.
Aiga Fumihiko
Amano Akio
Iwanaga Hiroki
Shida Naomi
Garrett Dawn L.
Kabushiki Kaisha Toshiba
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