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:
Mar. 28, 2006
Filed:
Mar. 18, 2002
Takashi Yanagisawa, Tokyo, JP;
Morinobu Endo, Suzaka-shi, Nagano-ken, JP;
Takashi Yanagisawa, Tokyo, JP;
Morinobu Endo, Suzaka-shi, Nagano-ken, JP;
GSI Creos Corporation, Tokyo, JP;
Other;
Abstract
A carbon fiber for a field electron emitter has a coaxial stacking morphology of truncated conical tubular graphene layers, each of which includes a hexagonal carbon layer and has a large ring end and a small ring end at opposite ends in the axial direction. The edges of the hexagonal carbon layers are exposed on at least part of the large ring ends. Since all the exposed edges function as electron emission tips, a large amount of emission current can be obtained.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile