Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Reexamination Certificate
2011-08-09
2011-08-09
Ton, Toan (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
C445S049000
Reexamination Certificate
active
07994698
ABSTRACT:
An electron emitting device includes an amorphous electron supply layer, an insulating layer formed on the electron supply layer, and an electrode formed on the insulating layer. The electron emits device emitting electrons when an electric field is applied between the electron supply layer and the electrode. The electron emitting device includes a concave portion provided by notching the electrode and the insulating layer to expose the electron supply layer, and a carbon layer covering the electrode and the concave portion except for an inner portion of an exposed surface4aof the electron supply layer and being in contact with an edge portion of the exposed surface of the electron supply layer.
REFERENCES:
patent: 6388376 (2002-05-01), Negishi et al.
patent: 2004/0251841 (2004-12-01), Negishi et al.
patent: 1599941 (2005-03-01), None
patent: 2005-512280 (2005-04-01), None
patent: 03/049132 (2003-06-01), None
International Preliminary Examination Report on Patentability issued Oct. 30, 2008.
International Search Report issued May 22, 2007 in the International (PCT) Application of which the present application is the U.S. National Stage.
Nakada Tomonari
Negishi Nobuyasu
Ogasawara Kiyohide
Okuda Yoshiyuki
Sakemura Kazuto
Featherly Hana S
Pioneer Corporation
Ton Toan
Wenderoth , Lind & Ponack, L.L.P.
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