Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2008-01-15
2008-01-15
Cano, Milton I. (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S040000, C558S420000, C558S167000, C556S415000
Reexamination Certificate
active
07318966
ABSTRACT:
A light emitting device includes an emissive substance between an anode and cathode that emits light upon application of electrical energy. The emissive substance included in the device is at least one of the following types of compounds: (a) a compound having a plurality of 1,7-phenanthroline skeletal structures; (b) a benzoquinoline derivative; (c) a spiro compound; and (d) a tetraphenylmethane derivative.
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Supplementary Partial European Search Report dated Feb. 27, 2007, directed to counterpart EP application No. 01 99 7977.
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Kitazawa Daisuke
Kohama Akira
Makiyama Aki
Tominaga Tsuyoshi
Cano Milton I.
Morrison & Foerster / LLP
Thompson Camie S.
Toray Industries Inc.
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