Electric lamp or space discharge component or device manufacturi – Process – Generating gas or vapor within an envelope – or coating by...
Reexamination Certificate
2006-12-12
2006-12-12
Santiago, Mariceli (Department: 2879)
Electric lamp or space discharge component or device manufacturi
Process
Generating gas or vapor within an envelope, or coating by...
C445S049000, C445S050000, C445S051000, C313S311000, C313S495000, C427S077000, C427S008000
Reexamination Certificate
active
07147529
ABSTRACT:
The present invention provides an electron emission material that is excellent in electron emission characteristics, a method of manufacturing the same, as well as an electron emission element. The method is a method of manufacturing an electron emission material including a carbon material obtained by baking a polymer film. In the method, a polyamic acid solution is prepared in which at least one metallic compound selected from a metal oxide and a metal carbonate is dispersed; the polyamic acid solution thus prepared is formed into a film and then is imidized to form a polyimide film including the metallic compound; and then the polyimide film thus formed is baked to form the carbon material. The electron emission material is formed so that it includes a carbon material, a protrusion having a concavity in its surface is formed at the surface of the carbon material, and the protrusion includes a metallic element.
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Deguchi Masahiro
Hashimoto Mitsuru
Ozaki Toyokazu
Shibata Motoshi
Taomoto Akira
McDermott Will & Emery LLP
Perry Anthony
Santiago Mariceli
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