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:
Nov. 30, 1999
Filed:
Dec. 15, 1997
Applicant:
Inventors:
Nobuya Seko, Tokyo, JP;
Hironori Imura, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H05B / ;
U.S. Cl.
CPC ...
313495 ; 313309 ; 313310 ; 3151693 ;
Abstract
In this field emission cold cathode apparatus, the heater shares at least one terminal with the other components, namely, the emitter electrode, the gate electrode, the focus electrode. With this structure, gases absorbed into a surface of the emitters can be released out from the emitters, by heating emitters with the heater. In addition, this apparatus can avoid the increase in the number of the terminal compared with the conventional apparatus having a heater.