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. 22, 2009
Filed:
Nov. 29, 2005
Iwao Ohwada, Nagoya, JP;
Masao Takahashi, Kuwana, JP;
Takayoshi Akao, Nagoya, JP;
Shuichi Ozawa, Nagoya, JP;
Kei Kosaka, Nagoya, JP;
Iwao Ohwada, Nagoya, JP;
Masao Takahashi, Kuwana, JP;
Takayoshi Akao, Nagoya, JP;
Shuichi Ozawa, Nagoya, JP;
Kei Kosaka, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
An electron-emitting device includes an emitter section composed of a dielectric material, a lower electrode disposed on the lower side of the emitter section, and an upper electrode disposed on the upper side of the emitter section so as to be opposed to the lower electrode with the emitter section therebetween, electrons being emitted from the emitter section through the upper electrode by the application of a drive voltage between the lower electrode and the upper electrode, wherein the upper electrode is provided with a plurality of through-holes which expose the emitter section and which have an average diameter of 10 nm or more and less than 100 nm, and a peripheral portion of each through-hole facing the emitter section is separated at a predetermined distance from the emitter section.