FR2004493A1 - - Google Patents
Info
- Publication number
- FR2004493A1 FR2004493A1 FR6907891A FR6907891A FR2004493A1 FR 2004493 A1 FR2004493 A1 FR 2004493A1 FR 6907891 A FR6907891 A FR 6907891A FR 6907891 A FR6907891 A FR 6907891A FR 2004493 A1 FR2004493 A1 FR 2004493A1
- Authority
- FR
- France
- 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
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
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Chemical Vapour Deposition (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71520168A | 1968-03-22 | 1968-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2004493A1 true FR2004493A1 (nl) | 1969-11-28 |
Family
ID=24873049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6907891A Pending FR2004493A1 (nl) | 1968-03-22 | 1969-03-19 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3536526A (nl) |
| BE (1) | BE728184A (nl) |
| DE (1) | DE1913717C3 (nl) |
| ES (1) | ES364973A1 (nl) |
| FR (1) | FR2004493A1 (nl) |
| GB (1) | GB1225093A (nl) |
| NL (1) | NL152398B (nl) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814016B2 (ja) * | 1978-03-31 | 1983-03-17 | 株式会社日立製作所 | 直熱形酸化物陰極用基体金属板材 |
| US4382980A (en) * | 1979-03-07 | 1983-05-10 | E. I. Du Pont De Nemours And Company | Magnesium compositions and process for forming MGO film |
| US4459322A (en) * | 1981-12-28 | 1984-07-10 | North American Philips Consumer Electronics Corp. | Method for producing cathode structure for cathode ray tubes utilizing urea-containing slurry |
| JPS58154130A (ja) * | 1982-03-10 | 1983-09-13 | Hitachi Ltd | 電子管用陰極 |
| US4836816A (en) * | 1988-05-06 | 1989-06-06 | Gte Products Corporation | Method of treating tungsten cathodes |
| US5277637A (en) * | 1989-04-03 | 1994-01-11 | U.S. Philips Corporation | Cathode for an electric discharge tube |
| US6660074B1 (en) | 2000-11-16 | 2003-12-09 | Egl Company, Inc. | Electrodes for gas discharge lamps; emission coatings therefore; and methods of making the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3215557A (en) * | 1962-08-29 | 1965-11-02 | Bell Telephone Labor Inc | Zirconium-niobium-nickel cathodes |
-
1968
- 1968-03-22 US US715201A patent/US3536526A/en not_active Expired - Lifetime
-
1969
- 1969-02-10 BE BE728184D patent/BE728184A/xx unknown
- 1969-02-11 GB GB1225093D patent/GB1225093A/en not_active Expired
- 1969-03-18 DE DE1913717A patent/DE1913717C3/de not_active Expired
- 1969-03-19 FR FR6907891A patent/FR2004493A1/fr active Pending
- 1969-03-20 ES ES364973A patent/ES364973A1/es not_active Expired
- 1969-03-21 NL NL696904387A patent/NL152398B/nl not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1225093A (nl) | 1971-03-17 |
| BE728184A (nl) | 1969-07-16 |
| DE1913717A1 (de) | 1969-10-09 |
| DE1913717C3 (de) | 1980-04-30 |
| NL152398B (nl) | 1977-02-15 |
| ES364973A1 (es) | 1971-02-16 |
| DE1913717B2 (de) | 1975-06-19 |
| NL6904387A (nl) | 1969-09-24 |
| US3536526A (en) | 1970-10-27 |