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:
Oct. 29, 2002
Filed:
Nov. 13, 1998
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/46 ; H01J 2/110 ; H01J 1/62 ; H01J 6/304 ;
U.S. Cl.
CPC ...
H01J 1/46 ; H01J 2/110 ; H01J 1/62 ; H01J 6/304 ;
Abstract
An electron-emitting device disclosed has stable electron emission characteristics with little variation, in high electron emission efficiency, in high definition, and at low driving voltage. The electron-emitting device disclosed is constructed in such structure that on a substrate there are a lower electrode, an insulating layer having pores, and an upper electrode stacked in this order, the insulating layer is an anodic oxide layer, and a carbon deposit is formed in the pores.
Yamanobe, Masato. (2002). Electron-emitting device provided with pores that have carbon deposited therein (U.S. Patent No. 6472814). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6472814
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile