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GB2416073B - Directly heated oxide cathode and fluorescent display tube using the same - Google Patents

Directly heated oxide cathode and fluorescent display tube using the same

Info

Publication number
GB2416073B
GB2416073B GB0518393A GB0518393A GB2416073B GB 2416073 B GB2416073 B GB 2416073B GB 0518393 A GB0518393 A GB 0518393A GB 0518393 A GB0518393 A GB 0518393A GB 2416073 B GB2416073 B GB 2416073B
Authority
GB
United Kingdom
Prior art keywords
same
display tube
fluorescent display
directly heated
oxide cathode
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.)
Expired - Fee Related
Application number
GB0518393A
Other versions
GB2416073A (en
GB0518393D0 (en
Inventor
Masahiro Kato
Tomohiro Yamada
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.)
Futaba Corp
Original Assignee
Futaba Corp
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
Priority claimed from JP2001317360A external-priority patent/JP2003123620A/en
Application filed by Futaba Corp filed Critical Futaba Corp
Publication of GB0518393D0 publication Critical patent/GB0518393D0/en
Publication of GB2416073A publication Critical patent/GB2416073A/en
Application granted granted Critical
Publication of GB2416073B publication Critical patent/GB2416073B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H01J1/144—Solid thermionic cathodes characterised by the material with other metal oxides as an emissive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
GB0518393A 2001-10-15 2002-10-15 Directly heated oxide cathode and fluorescent display tube using the same Expired - Fee Related GB2416073B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001317360A JP2003123620A (en) 2001-10-15 2001-10-15 Directly heated oxide cathode and fluorescent display tube using the same
GB0224007A GB2385707A (en) 2001-10-15 2002-10-15 Directly heated oxide cathode and fluorescent display tube using the same

Publications (3)

Publication Number Publication Date
GB0518393D0 GB0518393D0 (en) 2005-10-19
GB2416073A GB2416073A (en) 2006-01-11
GB2416073B true GB2416073B (en) 2006-04-12

Family

ID=35500866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0518393A Expired - Fee Related GB2416073B (en) 2001-10-15 2002-10-15 Directly heated oxide cathode and fluorescent display tube using the same

Country Status (1)

Country Link
GB (1) GB2416073B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395157A1 (en) * 1989-04-28 1990-10-31 Koninklijke Philips Electronics N.V. Oxide cathode

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395157A1 (en) * 1989-04-28 1990-10-31 Koninklijke Philips Electronics N.V. Oxide cathode

Also Published As

Publication number Publication date
GB2416073A (en) 2006-01-11
GB0518393D0 (en) 2005-10-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20191015