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:
Jul. 06, 1993
Filed:
Apr. 02, 1991
Applicant:
Inventors:
Yoshio Watanabe, Yokohama, JP;
Toshiharu Hoshi, Kawasaki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313582 ; 313584 ;
Abstract
A gas discharge-type display panel which comprises a front side glass substrate having a pattern of an anode on one side thereof and a rear side glass substrate having a pattern of a cathode in face-to-face and spaced relation with the anode. The substrates are assembled to seal off so that discharge spaces are created between the substrates. The cathode is made of a conductive composite oxide having a perovskite structure of a K.sub.2 NiF.sub.4 -type structure with significantly improved discharge characteristics and a prolonged life.