JPS52147054A - Electron cathode formation and its production - Google Patents

Electron cathode formation and its production

Info

Publication number
JPS52147054A
JPS52147054A JP6360176A JP6360176A JPS52147054A JP S52147054 A JPS52147054 A JP S52147054A JP 6360176 A JP6360176 A JP 6360176A JP 6360176 A JP6360176 A JP 6360176A JP S52147054 A JPS52147054 A JP S52147054A
Authority
JP
Japan
Prior art keywords
production
cathode formation
electron cathode
cathode filament
electron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6360176A
Other languages
Japanese (ja)
Other versions
JPS6220650B2 (en
Inventor
Tomokatsu Oguro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6360176A priority Critical patent/JPS52147054A/en
Publication of JPS52147054A publication Critical patent/JPS52147054A/en
Priority to US06/010,311 priority patent/US4230968A/en
Publication of JPS6220650B2 publication Critical patent/JPS6220650B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: Many holes are provided on the band-shaped thoriated tungsten wire and the cathode filament is formed by winding up spirally the wire, so that the cathode filament can be obtained which is long in life and well suitable for mass production and cheap in cost.
COPYRIGHT: (C)1977,JPO&Japio
JP6360176A 1976-05-26 1976-06-02 Electron cathode formation and its production Granted JPS52147054A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6360176A JPS52147054A (en) 1976-06-02 1976-06-02 Electron cathode formation and its production
US06/010,311 US4230968A (en) 1976-05-26 1979-02-07 Cathode structure for magnetrons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6360176A JPS52147054A (en) 1976-06-02 1976-06-02 Electron cathode formation and its production

Publications (2)

Publication Number Publication Date
JPS52147054A true JPS52147054A (en) 1977-12-07
JPS6220650B2 JPS6220650B2 (en) 1987-05-08

Family

ID=13233952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6360176A Granted JPS52147054A (en) 1976-05-26 1976-06-02 Electron cathode formation and its production

Country Status (1)

Country Link
JP (1) JPS52147054A (en)

Also Published As

Publication number Publication date
JPS6220650B2 (en) 1987-05-08

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