JPS51150964A - Hot cathode - Google Patents

Hot cathode

Info

Publication number
JPS51150964A
JPS51150964A JP7449675A JP7449675A JPS51150964A JP S51150964 A JPS51150964 A JP S51150964A JP 7449675 A JP7449675 A JP 7449675A JP 7449675 A JP7449675 A JP 7449675A JP S51150964 A JPS51150964 A JP S51150964A
Authority
JP
Japan
Prior art keywords
hot cathode
radiatiove
substratum
sticking
substance
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
JP7449675A
Other languages
Japanese (ja)
Inventor
Masaaki Futamoto
Toshiyuki Aida
Isamu Yuhito
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 JP7449675A priority Critical patent/JPS51150964A/en
Publication of JPS51150964A publication Critical patent/JPS51150964A/en
Pending legal-status Critical Current

Links

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: To get constant thermion emission by sticking radiatiove substance on the substratum which has holes.
COPYRIGHT: (C)1976,JPO&Japio
JP7449675A 1975-06-20 1975-06-20 Hot cathode Pending JPS51150964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7449675A JPS51150964A (en) 1975-06-20 1975-06-20 Hot cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7449675A JPS51150964A (en) 1975-06-20 1975-06-20 Hot cathode

Publications (1)

Publication Number Publication Date
JPS51150964A true JPS51150964A (en) 1976-12-24

Family

ID=13548960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7449675A Pending JPS51150964A (en) 1975-06-20 1975-06-20 Hot cathode

Country Status (1)

Country Link
JP (1) JPS51150964A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121125A (en) * 1981-01-21 1982-07-28 Japan Electronic Ind Dev Assoc<Jeida> Quick movable type impregnated cathode
JP2007305689A (en) * 2006-05-09 2007-11-22 Denso Corp Ignition coil, manufacturing method thereof, and manufacturing apparatus thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57121125A (en) * 1981-01-21 1982-07-28 Japan Electronic Ind Dev Assoc<Jeida> Quick movable type impregnated cathode
JP2007305689A (en) * 2006-05-09 2007-11-22 Denso Corp Ignition coil, manufacturing method thereof, and manufacturing apparatus thereof

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