Class H01J : ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Subclass 1/144: 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 (details of electron-optical arrangements or of ion traps H01J 3/00) Main electrodes Solid thermionic cathodes characterised by the material with other metal oxides as an emissive material
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12247317 | Functional metal oxides and methods of making same | Sep 04, 20 | Mar 11, 25 | The Johns Hopkins University |
| 11195686 | Thermionic emission device and method for making the same | Oct 11, 20 | Dec 07, 21 | Tsinghua University; Hon Hai Precision Industry Co., Ltd; |
| 11075049 | Thermionic tungsten/scandate cathodes and method of making the same | Oct 15, 19 | Jul 27, 21 | The Government of the United States of America, as represented by the Secretary of the Navy |
| 10998157 | Tungsten alloy part, and discharge lamp, transmitting tube, and magnetron using the same | Jul 08, 19 | May 04, 21 | Kabushiki Kaisha Toshiba; Toshiba Materials Co. Ltd.; |
| 10910211 | Electrical potential energy to electrical kinetic energy converter, ozone generator, and light emitter | Jun 03, 19 | Feb 02, 21 | Not available |
| 10727021 | Electron emission element, electrification apparatus, and image forming apparatus | Jul 14, 17 | Jul 28, 20 | SHARP KABUSHIKI KAISHA |
| 10497530 | Thermionic tungsten/scandate cathodes and methods of making the same | Apr 08, 16 | Dec 03, 19 | The Government of the United States of America, as represented by the Secretary of the Navy |
| 10395879 | Tungsten alloy part, and discharge lamp, transmitting tube, and magnetron using the same | Nov 26, 14 | Aug 27, 19 | KABUSHIKI KAISHA TOSHIBA; Toshiba Materials Co., Ltd.; |
| 9847208 | Electron beam device, cold field emitter, and method for regeneration of a cold field emitter | Aug 10, 16 | Dec 19, 17 | ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH |
| 9349561 | Impregnated yttric or gadolinium-containing Barium-aluminum-scandate cathodes and their fabrication methods | Dec 30, 11 | May 24, 16 | BEIJING UNIVERSITY OF TECHNOLOGY |
| 7586263 | Discharge lamp having a cathode and emitter assembly composed of tungsten and thorium oxide and joined through a carbide interface region | Mar 29, 07 | Sep 08, 09 | USHIO DENKI KABUSHIKI KAISHA |
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