H01J 29/484
Eliminating deleterious effects due to thermal effects, electrical or magnetic fields
Official title: {Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission (H01J29/481 and H01J29/482 take precedence)}
H01J29/484 (Eliminating deleterious effects due to thermal effects, electrical or magnetic fields) appears on 55 US grants and 12 published applications in this corpus.
Search patents in H01J- Granted patents
- 55
- Published applications
- 12
- Assignees
- 30
- Inventors
- 109
- Latest grant
- 6 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 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
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- Systems and methods utilizing a triode hollow cathode electron gun for linear particle accelerators9 Feb 2016US 9,257,253 B1Altair Technologies, Inc.
- Superconducting cryo module5 Feb 2026US 2026/0038761 A1Mitsubishi Heavy Industries Machinery Systems, Ltd.
- Electron gun and manufacturing method therefor29 Apr 2021US 2021/0125805 A1New Japan Radio Co., Ltd.
- Electron gun24 Jan 2019US 2019/0027335 A1NEC Network and Sensor Systems, Ltd.
- Systems and methods utilizing a triode hollow cathode electron gun for linear particle accelerators25 Feb 2016US 2016/0056006 A1Altair Technologies, Inc.
- Triode hollow cathode electron gun for linear particle accelerators25 Feb 2016US 2016/0056007 A1Altair Technologies, Inc.
Most cited
By later US patents
- Picture tube with an electron gun having an improved potential supplying means12US 4,366,415 ATokyo Shibaura Denki Kabushiki Kaisha · 1982
- Multiple electrode support members with low coefficient of expansion11US 3,974,416 AU. S. Philips Corporation · 1976
- CRT With means for suppressing arcing therein11US 4,288,719 ARCA Corporation · 1981
- Cathode-ray tube11US 6,133,685 AMatsushita Electronics Corporation · 2000
- Color cathode-ray tube10US 4,885,503 AHitachi, Ltd. · 1989