DE3782543D1 - Impregnierte kathode. - Google Patents

Impregnierte kathode.

Info

Publication number: DE3782543D1
Authority: DE; Germany
Prior art keywords: impregnated cathode; impregnated; cathode
Prior art date: 1986-06-06
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 - Lifetime

Application number

DE8787108036T

Other languages

English (en)

Other versions

DE3782543T2 (de

Inventor

Sakae C O Patent Divisi Kimura

Masaru C O Patent Divi Nikaido

Katumi C O Patent Yanagibashi

Katsuhisa C O Patent Div Homma

Yoshiaki C O Patent Divi Ouchi

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.)

Toshiba Corp

Original Assignee

Toshiba 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.)

1986-06-06

Filing date

1987-06-03

Publication date

1992-12-17

1986-06-06 Priority claimed from JP61130224A external-priority patent/JPH0795422B2/ja

1986-06-06 Priority claimed from JP13022386A external-priority patent/JPH0782807B2/ja

1987-06-03 Application filed by Toshiba Corp filed Critical Toshiba Corp

1992-12-17 Application granted granted Critical

1992-12-17 Publication of DE3782543D1 publication Critical patent/DE3782543D1/de

1993-05-06 Publication of DE3782543T2 publication Critical patent/DE3782543T2/de

2007-06-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode

DE8787108036T 1986-06-06 1987-06-03 Impregnierte kathode. Expired - Lifetime DE3782543T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP61130224A JPH0795422B2 (ja)	1986-06-06	1986-06-06	含浸形陰極の製造方法
JP13022386A JPH0782807B2 (ja)	1986-06-06	1986-06-06	含浸形陰極構体

Publications (2)

Publication Number	Publication Date
DE3782543D1 true DE3782543D1 (de)	1992-12-17
DE3782543T2 DE3782543T2 (de)	1993-05-06

Family

ID=26465419

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8787108036T Expired - Lifetime DE3782543T2 (de)	1986-06-06	1987-06-03	Impregnierte kathode.

Country Status (3)

Country	Link
US (1)	US4928034A (de)
EP (1)	EP0248417B1 (de)
DE (1)	DE3782543T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4986788A (en) *	1989-11-02	1991-01-22	Samsung Electron Devices Co., Ltd.	Process of forming an impregnated cathode
KR920004900B1 (ko) *	1990-03-13	1992-06-22	삼성전관 주식회사	함침형 음극구조체와 그 제조방법
DE19527723A1 (de) *	1995-07-31	1997-02-06	Philips Patentverwaltung	Elektrische Entladungsröhre oder Entladungslampe und Scandat-Vorratskathode

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4165473A (en) *	1976-06-21	1979-08-21	Varian Associates, Inc.	Electron tube with dispenser cathode
JPS5471550A (en) *	1977-11-18	1979-06-08	Hitachi Ltd	Base metal material for direct heating oxide cathode
US4417173A (en) *	1980-12-09	1983-11-22	E M I-Varian Limited	Thermionic electron emitters and methods of making them
JPS58154131A (ja) *	1982-03-10	1983-09-13	Hitachi Ltd	含浸形陰極
JPS59203343A (ja) *	1983-05-04	1984-11-17	Hitachi Ltd	含浸形陰極
JPS6068527A (ja) *	1983-09-26	1985-04-19	Toshiba Corp	含浸型陰極
JPS60138822A (ja) *	1983-12-27	1985-07-23	Hitachi Ltd	含浸形陰極
EP0156454B1 (de) *	1984-02-24	1987-12-09	Thorn Emi-Varian Limited	Thermo-ionischer Emitter
US4675570A (en) *	1984-04-02	1987-06-23	Varian Associates, Inc.	Tungsten-iridium impregnated cathode

1987
- 1987-06-03 DE DE8787108036T patent/DE3782543T2/de not_active Expired - Lifetime
- 1987-06-03 EP EP87108036A patent/EP0248417B1/de not_active Expired
1988
- 1988-11-18 US US07/273,157 patent/US4928034A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US4928034A (en)	1990-05-22
DE3782543T2 (de)	1993-05-06
EP0248417A2 (de)	1987-12-09
EP0248417A3 (en)	1989-10-25
EP0248417B1 (de)	1992-11-11

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Legal Events

Date	Code	Title	Description
1993-12-09	8364	No opposition during term of opposition
1999-08-19	8320	Willingness to grant licences declared (paragraph 23)