The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2010
Filed:
Dec. 21, 2005
Koki Nukanobu, Sagamihara, JP;
Takuto Moriguchi, Chigasaki, JP;
Keisuke Yamamoto, Yamato, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electron-emitting device is provided with improved electron emitting efficiency. An electron-emitting device includes first and second electroconductive films disposed on a surface of a substrate in opposition to each other to form a gap between ends of the first and second electroconductive films. The end of the first electroconductive film includes a portion the minimum distance dfrom which to the second electroconductive film is 10 nm or less. Let ddenote a minimum distance between the end of the first electroconductive film which is away from the portion the minimum distance dfrom which to the second electroconductive film is 10 nm or less by the minimum distance dand the end of the second electroconductive film. The relation of d/d≧1.2 is satisfied.