Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2011-03-08
2011-03-08
Patel, Nimeshkumar D (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C445S024000
Reexamination Certificate
active
07902745
ABSTRACT:
An organic electroluminescent unit includes an anode, a cathode, a light-emitting layer disposed between the anode and the cathode, a hole transport layer disposed between the anode and the light-emitting layer, and a hole transport layer-protecting layer disposed between the hole transport layer and the light-emitting layer.
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patent: 2007/0159085 (2007-07-01), Kuma et al.
patent: A-2004-335475 (2004-11-01), None
Oliff & Berridg,e PLC
Patel Nimeshkumar D
Raleigh Donald L
Seiko Epson Corporation
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