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. 02, 2011
Filed:
Jan. 25, 2010
Koki Nukanobu, Kanagawa-Ken, JP;
Takahiro Sato, Kanagawa-Ken, JP;
Koki Nukanobu, Kanagawa-Ken, JP;
Takahiro Sato, Kanagawa-Ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electron-emitting device having little dispersion of its electron emission characteristic and a suppressed 'fluctuation' of its electron emission quantity is provided. The electron-emitting device includes a substrate equipped with a first portion containing silicon oxide and a second portion arranged abreast of the first portion and having a higher heat conductance, and an electroconductive film including a gap therein, the electroconductive film arranged on the substrate, wherein the first and the second portions having a resistance higher than that of the electroconductive film, and the gap is arranged on the first portion.