EP 0298558 A1 19890111 - Method of manufacturing a scandat cathode.
Title (en)
Method of manufacturing a scandat cathode.
Title (de)
Verfahren zur Herstellung einer Scandat-Kathode.
Title (fr)
Méthode pour fabriquer une cathode au scandate.
Publication
Application
Priority
NL 8701583 A 19870706
Abstract (en)
A cathode body for an impregnated scandate cathode is obtained by compressing and sintering a mixture of tungsten powder with approximately 0.5% by weight of scandium, whereafter the body is impregnated.
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
H01J 1/28 (2013.01 - EP); H01J 9/04 (2013.01 - KR); H01J 9/047 (2013.01 - EP)
Citation (search report)
- [A] EP 0179513 A1 19860430 - PHILIPS NV [NL]
- [AD] EP 0091161 A1 19831012 - PHILIPS NV [NL]
- [AD] US 4007393 A 19770208 - VAN STRATUM ANTONIUS JOHANNES, et al
- [AD] EP 0178716 A1 19860423 - PHILIPS NV [NL]
- [A] PATENT ABSTRACTS OF JAPAN, vol. 8, no. 190 (E-263)[1627], 31st August 1984; & JP-A-59 79 934 (HITACHI SEISAKUSHO K.K.) 09-05-1984
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0298558 A1 19890111; EP 0298558 B1 19940525; DE 3889696 D1 19940630; DE 3889696 T2 19941208; JP 2685232 B2 19971203; JP H01163941 A 19890628; KR 890002949 A 19890412; NL 8701583 A 19890201
DOCDB simple family (application)
EP 88201392 A 19880704; DE 3889696 T 19880704; JP 16519188 A 19880704; KR 880008245 A 19880704; NL 8701583 A 19870706