JPS5362454A - Direct heating type cathode construction - Google Patents

Direct heating type cathode construction

Info

Publication number
JPS5362454A
JPS5362454A JP13731576A JP13731576A JPS5362454A JP S5362454 A JPS5362454 A JP S5362454A JP 13731576 A JP13731576 A JP 13731576A JP 13731576 A JP13731576 A JP 13731576A JP S5362454 A JPS5362454 A JP S5362454A
Authority
JP
Japan
Prior art keywords
heating type
direct heating
type cathode
cathode construction
substrate
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.)
Pending
Application number
JP13731576A
Other languages
Japanese (ja)
Inventor
Akira Misumi
Seiji Kumada
Hiroshi Soeno
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 JP13731576A priority Critical patent/JPS5362454A/en
Publication of JPS5362454A publication Critical patent/JPS5362454A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the distortion of the substrate and also to prevent the peeling of oxide, and further to obtain the direct heating type cathode construction having a longer life of electron emission, by forming delicate metallic layer on the surface or the both sides of the substrate.
COPYRIGHT: (C)1978,JPO&Japio
JP13731576A 1976-11-17 1976-11-17 Direct heating type cathode construction Pending JPS5362454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13731576A JPS5362454A (en) 1976-11-17 1976-11-17 Direct heating type cathode construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13731576A JPS5362454A (en) 1976-11-17 1976-11-17 Direct heating type cathode construction

Publications (1)

Publication Number Publication Date
JPS5362454A true JPS5362454A (en) 1978-06-03

Family

ID=15195802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13731576A Pending JPS5362454A (en) 1976-11-17 1976-11-17 Direct heating type cathode construction

Country Status (1)

Country Link
JP (1) JPS5362454A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632627U (en) * 1979-08-21 1981-03-31
JPS5641636A (en) * 1979-09-12 1981-04-18 Hitachi Ltd Directly heated type oxide cathode
JPS56141136A (en) * 1980-04-04 1981-11-04 Hitachi Ltd Oxide cathode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632627U (en) * 1979-08-21 1981-03-31
JPS5641636A (en) * 1979-09-12 1981-04-18 Hitachi Ltd Directly heated type oxide cathode
JPS56141136A (en) * 1980-04-04 1981-11-04 Hitachi Ltd Oxide cathode

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