JPS56132738A - Manufacture of directly heated cathode - Google Patents

Manufacture of directly heated cathode

Info

Publication number
JPS56132738A
JPS56132738A JP3478780A JP3478780A JPS56132738A JP S56132738 A JPS56132738 A JP S56132738A JP 3478780 A JP3478780 A JP 3478780A JP 3478780 A JP3478780 A JP 3478780A JP S56132738 A JPS56132738 A JP S56132738A
Authority
JP
Japan
Prior art keywords
plating
pattern
directly heated
alkaline
metal oxide
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
JP3478780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6353663B2 (enrdf_load_stackoverflow
Inventor
Kazuo Sunahara
Akira Misumi
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 JP3478780A priority Critical patent/JPS56132738A/ja
Publication of JPS56132738A publication Critical patent/JPS56132738A/ja
Publication of JPS6353663B2 publication Critical patent/JPS6353663B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
JP3478780A 1980-03-21 1980-03-21 Manufacture of directly heated cathode Granted JPS56132738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3478780A JPS56132738A (en) 1980-03-21 1980-03-21 Manufacture of directly heated cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3478780A JPS56132738A (en) 1980-03-21 1980-03-21 Manufacture of directly heated cathode

Publications (2)

Publication Number Publication Date
JPS56132738A true JPS56132738A (en) 1981-10-17
JPS6353663B2 JPS6353663B2 (enrdf_load_stackoverflow) 1988-10-25

Family

ID=12423979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3478780A Granted JPS56132738A (en) 1980-03-21 1980-03-21 Manufacture of directly heated cathode

Country Status (1)

Country Link
JP (1) JPS56132738A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6353663B2 (enrdf_load_stackoverflow) 1988-10-25

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