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:
Jun. 10, 1986
Filed:
Dec. 24, 1984
Applicant:
Inventors:
Jan Hasker, Eindhoven, NL;
Pieter Hokkeling, Eindhoven, NL;
Johannes van Esdonk, Eindhoven, NL;
Josef J van Lith, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 27 ; 75 / ; 75 / ; 75 96 ; 252521 ; 313337 ; 3133 / ; 419 31 ; 419 32 ; 419 33 ; 419 34 ; 419 35 ; 419 39 ; 419 44 ; 419 45 ; 419 54 ; 419 55 ; 419 57 ; 419 58 ; 419 60 ; 445 50 ;
Abstract
A method of manufacturing a scandate dispenser cathode having a matrix at least the top layer of which at the surface consists substantially of tungsten (W) and scandium oxide (Sc.sub.2 O.sub.3) and with emitter material in or below said matrix. If said method comprises the following steps: