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, 2000
Filed:
Apr. 02, 1998
Applicant:
Inventor:
Kazuo Konuma, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
445-6 ;
Abstract
A getter in a tube body is heated in an exhaust process of a cathode ray tube, and during the time gas is emitted due to the heating of the getter, electrons are emitted from the cathode. Then the exhaust tube of the tube body is sealed to maintain a high vacuum by utilizing the absorbing function of the getter.