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:
Sep. 20, 2005
Filed:
Jun. 04, 2001
Applicants:
Akihiko Hosono, Tokyo, JP;
Shuhei Nakata, Tokyo, JP;
Masaaki Hiraki, Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J001/02 ;
U.S. Cl.
CPC ...
Abstract
A carbon body has a structure for producing a planar electron source in a simple manner; a process for producing the carbon body; and an electric field emission electron source using the carbon body. The carbon body is a thin layer having a front surface and a back surface, and at least the front surface is a continuous curved wall, as viewed in plan, having a netlike structure.