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:
Dec. 20, 2011
Filed:
Apr. 24, 2009
Toshihiko Takeda, Yokohama, JP;
Takeo Tsukamoto, Atsugi, JP;
Koki Nukanobu, Machida, JP;
Takuto Moriguchi, Chigasaki, JP;
Toshihiko Takeda, Yokohama, JP;
Takeo Tsukamoto, Atsugi, JP;
Koki Nukanobu, Machida, JP;
Takuto Moriguchi, Chigasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides an electron-emitting device which does not need a fresh electrode to be added thereto, has excellent convergence and shows little change of a discharged electric current for short and long periods of time, and an image display apparatus using the device. The electron-emitting device includes at least a pair of device electrodes formed on an insulating substrate, and a plurality of electroconductive films which are formed so as to connect the device electrodes to each other and have gaps therein, wherein the surface of a region which is at least adjacent to the gap between the electroconductive films and is not covered with the electroconductive film is higher than the surface of the electroconductive film.