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:
May. 31, 2011
Filed:
Aug. 01, 2008
Applicants:
Takashi Iwaki, Machida, JP;
Tsuyoshi Ibe, Fujisawa, JP;
Masahiro Terada, Hadano, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electron-emitting device, comprising: a pair of device electrodes formed on an insulating substrate; and a conductive film formed to connect the device electrodes and having an electron-emitting portion, wherein the conductive film has a thickness of 3 nm to 50 nm and is made of precious metal and oxide of base metal, a percentage of the base metal among metals contained in the conductive film is 30 mol % or more, and the conductive film has a concentration gradient of the oxide of the base metal in a thickness direction.