H01J 1/24
Insulating layer or body located between heater and emissive material
H01J1/24 (Insulating layer or body located between heater and emissive material) appears on 16 US grants and 8 published applications in this corpus.
Search patents in H01J- Granted patents
- 16
- Published applications
- 8
- Assignees
- 14
- Inventors
- 40
- Latest grant
- 5 Jan 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 4 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Feedthrough device including a gas discharge tube5 Jan 2021US 10,886,091 B2AVX Corporation
- Multi-apertured conduction heater11 Aug 2020US 10,741,351 B1Lockheed Martin Corporation
- Indirectly heated electrode for gas discharge tube, gas discharge tube using said indirectly heated electrode, and lighting device for said gas discharge tube30 Sep 2008US 7,429,826 B2Hamamatsu Photonics K.K.
- Cathode structure including barrier for preventing metal bridging from heater to emitter19 Aug 2008US 7,414,356 B2Matsushita Electric Industrial Co., Ltd.
- Indirectly heated electrode for gas discharge tube15 May 2007US 7,218,047 B2Hamamatsu Photonics K.K.
- Ion source cathode with monolithic radiation shields30 Jul 2026US 2026/0221371 A1Axcelis Technologies, Inc.
- Emitter and device provided with same21 Sep 2023US 2023/0298846 A1Denka Company Limited
- Feedthrough Device Including A Gas Discharge Tube16 Jan 2020US 2020/0020500 A1AVX Corporation
- Indirectly heated electrode for gas discharge tube, gas discharge tube using said indirectly heated electrode, and lighting device for said gas discharge tube6 Apr 2006US 2006/0071606 A1Hamamatsu Photonics K.K.
- Cathode structure, electron gun, and cathode ray tube21 Oct 2004US 2004/0207307 A1Matsushita Electric Industrial Co., Ltd.
Most cited
By later US patents
- Cathode assembly, electron gun assembly, electron tube, heater, and method of manufacturing cathode assembly and electron gun assembly22US 6,130,502 AKabushiki Kaisha Toshiba · 2000
- Display device based on indirectly heated thermionic cathodes13US 5,831,382 A1998
- Electron tube with pyrolytic graphite heating element8US 4,178,530 AU. S. Philips Corporation · 1979
- Low mass, indirectly heated, fast warm-up heater-cathode assembly6US 4,150,318 AGTE Sylvania Incorporated · 1979
- High strength extended leakage path ceramic tube wall for image intensifier and method of manufacture4US 4,192,064 AThe United States of America as represented by the Secretary of the Army · 1980