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:
Aug. 31, 2010
Filed:
Apr. 10, 2009
Junya Tanaka, Tokyo, JP;
Shin Kitamura, Tokyo, JP;
Tamaki Kobayashi, Tokyo, JP;
Tsuyoshi Takegami, Tokyo, JP;
Junya Tanaka, Tokyo, JP;
Shin Kitamura, Tokyo, JP;
Tamaki Kobayashi, Tokyo, JP;
Tsuyoshi Takegami, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electron-emitting device has an insulating layer having a side surface, a recess portion formed on the side surface of the insulating layer, a gate electrode which is arranged above the recess portion, and a wedge-shaped emitter which is arranged on an edge of a lower side of the recess portion and has a first slope on a side of the recess portion and a second slope on a side opposite to the recess portion. A lower end of the first slope of the emitter enters the recess portion, and both the first slope and the second slope of the emitter tilt to an outside of the recess portion.