Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Reexamination Certificate
2005-02-01
2005-02-01
Patel, Ashok (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
C313S310000, C313S512000
Reexamination Certificate
active
06849999
ABSTRACT:
A substrate for an electron source to be used for forming the electron source, the electron source and an image forming apparatus in which the substrate has been used, and manufacturing method thereof. The substrate to form the electron source in which an electron emission device is disposed includes a substrate containing Na, a first layer wish SiO2as a main component having been formed on the substrate, and a second layer containing electron conductive oxide. The electron source includes the substrate and the electron emission device disposed on the first layer or the second layer. The image forming apparatus includes the electron source and an image forming member to form an image with irradiation of electrons emitted from the electron source. According to a manufacturing method of the substrate for forming the electron source with which the electron emission device is formed, the first layer with SiO2as its main component, and the second layer containing electron conductive oxide are formed on a substrate containing Na. The manufacturing method of an electron source includes a step in which the first layer with SiO2as its main component, and the second layer containing electron conductive oxide are formed on a substrate containing Na, and a step of forming an electron emission device on the first layer or on the second layer.
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Kobayashi Tamaki
Shibata Masaaki
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Patel Ashok
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