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:
Jan. 31, 1995
Filed:
May. 13, 1992
Applicant:
Inventor:
Hiroshi Komatsu, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313309 ; 313336 ; 313351 ;
Abstract
A multiple electrode field electron emission device is formed on an insulating layer disposed on a surface of an insulated flat substrate and has a cathode with multiple of emission projections each having a projection tip that overhangs the insulating layer. The device further includes an anode for collecting electrons ejected from the cathode emission projections formed on the surface of the substrate. Control electrodes, having one of several alternate configurations, are formed between the cathode and the anode. The device is fabricated using over-etching and directional particulate deposition techniques.