Class H01J : ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Subclass 1/13: 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
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12230413 | Electron beam generator, electron beam emission device and X-ray emission device | Jan 28, 21 | Feb 18, 25 | Hamamatsu Photonics K. K. |
| 12046439 | Method for tuning work function using surface photo voltage and producing ultra-low-work-function surfaces, and devices operational therewith | Nov 30, 21 | Jul 23, 24 | The Board of Trustees of the Leland Stanford Junior University |
| 11348758 | Charged particle beam device | Feb 05, 19 | May 31, 22 | HITACHI HIGH-TECH CORPORATION |
| 11205554 | Method for tuning work function using surface photovoltage and producing ultra-low-work-function surfaces, and devices operational therewith | Jul 16, 14 | Dec 21, 21 | The Board of Trustees of the Leland Stanford Junior University |
| 11152181 | Estimation of cathode space current for a thermionic vacuum tube using a polynomial based on a heuristically determined variable representing the grid and plate voltages | May 17, 19 | Oct 19, 21 | Panayotis Tsambos |
| 10994365 | Apparatus for generating electron radiation and three-dimensional printing apparatus | Sep 19, 19 | May 04, 21 | Not available |
| 9881763 | Ion generation device and ion detection device | Nov 10, 16 | Jan 30, 18 | RICOH COMPANY, LTD. |
| 9412551 | Cathode obtaining method and electron beam writing apparatus | May 26, 15 | Aug 09, 16 | NUFLARE TECHNOLOGY, INC. |
| 9384935 | Cathode structures for X-ray tubes | Feb 09, 12 | Jul 05, 16 | VAREX IMAGING CORPORATION |
| 9349561 | Impregnated yttric or gadolinium-containing Barium-aluminum-scandate cathodes and their fabrication methods | Dec 30, 11 | May 24, 16 | BEIJING UNIVERSITY OF TECHNOLOGY |
| 9275818 | Method of making and use of an automatic system to increase the operating life of vacuum tubes with a vacuum tube device | May 20, 14 | Mar 01, 16 | Not available |
| 9165737 | High-brightness, long life thermionic cathode and methods of its fabrication | Oct 04, 12 | Oct 20, 15 | NUFLARE TECHNOLOGY, INC. |
| 8976542 | High frequency cathode heater supply for a microwave source | Nov 11, 10 | Mar 10, 15 | TELEDYNE E2V (UK) LIMITED |
| 8968045 | Cathode selection method | Oct 28, 13 | Mar 03, 15 | NUFLARE TECHNOLOGY, INC. |
| 8912505 | Electron beam focusing electrode and electron gun using the same | Oct 04, 12 | Dec 16, 14 | SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, |
| 8910591 | Apparatus and methods for capacitively coupled plasma vapor processing of semiconductor wafers | Feb 14, 13 | Dec 16, 14 | MICRON TECHNOLOGY, INC. |
| 8174174 | Cathode structures for X-ray tubes | Apr 13, 10 | May 08, 12 | VAREX IMAGING CORPORATION |
| 8154185 | Diamondoid monolayers as electron emitters | Feb 12, 07 | Apr 10, 12 | THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, |
| 7795792 | Cathode structures for X-ray tubes | Feb 08, 06 | Sep 14, 10 | VAREX IMAGING CORPORATION |
| 7722425 | Electron source manufacturing method | Jan 13, 06 | May 25, 10 | DENKI KAGAKU KOGYO KABUSHIKI KAISHA |
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