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:
Apr. 30, 2002
Filed:
Apr. 06, 2000
Electric discharge processing method for an electron tube using a field emission cold cathode device
Applicant:
Inventor:
Yuko Okada, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06G 1/04 ;
U.S. Cl.
CPC ...
G06G 1/04 ;
Abstract
The present invention provides a method of carrying out an electric discharge processing to an electron tube having a field emission cold cathode device, wherein at least a high voltage electrode of the electron tube is maintained in a high voltage range, whilst all electrodes of the electron tube except for the at least high voltage electrode are maintained in a lower voltage range than the high voltage range.