JPS59173250U - 把持型熱電子放射陰極 - Google Patents

把持型熱電子放射陰極

Info

Publication number
JPS59173250U
JPS59173250U JP6744683U JP6744683U JPS59173250U JP S59173250 U JPS59173250 U JP S59173250U JP 6744683 U JP6744683 U JP 6744683U JP 6744683 U JP6744683 U JP 6744683U JP S59173250 U JPS59173250 U JP S59173250U
Authority
JP
Japan
Prior art keywords
thermionic emission
cathode
emission cathode
gripping type
type thermionic
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
JP6744683U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0531796Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
平岡　秀雄
萩原　宏俊
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP6744683U priority Critical patent/JPS59173250U/ja
Publication of JPS59173250U publication Critical patent/JPS59173250U/ja
Application granted granted Critical
Publication of JPH0531796Y2 publication Critical patent/JPH0531796Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)
JP6744683U 1983-05-06 1983-05-06 把持型熱電子放射陰極 Granted JPS59173250U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6744683U JPS59173250U (ja) 1983-05-06 1983-05-06 把持型熱電子放射陰極

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6744683U JPS59173250U (ja) 1983-05-06 1983-05-06 把持型熱電子放射陰極

Publications (2)

Publication Number Publication Date
JPS59173250U true JPS59173250U (ja) 1984-11-19
JPH0531796Y2 JPH0531796Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-08-16

Family

ID=30197635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6744683U Granted JPS59173250U (ja) 1983-05-06 1983-05-06 把持型熱電子放射陰極

Country Status (1)

Country Link
JP (1) JPS59173250U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007053128A (ja) * 2005-08-15 2007-03-01 Nikon Corp 電子銃及び電子線露光装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5526862U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1978-08-10 1980-02-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5526862U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1978-08-10 1980-02-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007053128A (ja) * 2005-08-15 2007-03-01 Nikon Corp 電子銃及び電子線露光装置

Also Published As

Publication number Publication date
JPH0531796Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-08-16

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