H01J 3/028
Replacing parts of the gun
Official title: {Replacing parts of the gun; Relative adjustment (H01J3/021 - H01J3/025 take precedence)}
H01J3/028 (Replacing parts of the gun) appears on 12 US grants and 12 published applications in this corpus.
Search patents in H01J- Granted patents
- 12
- Published applications
- 12
- Assignees
- 16
- Inventors
- 42
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 1 |
| 2020 | 3 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for use with a radiotherapy device26 Aug 2025US 12,397,176 B2Elekta Limited
- Electron gun and X-ray source and CT device having the electron gun18 Aug 2020US 10,748,731 B2Nuctech Company Limited
- Compact system for coupling RF power directly into RF LINACS14 Apr 2020US 10,624,199 B2Starfire Industries LLC
- Method and apparatus for detecting electron beam source filament wear7 Jan 2020US 10,529,070 B2Arcam AB
- Extractor for an microcolumn, an alignment method for an extractor aperture to an electron emitter, and a measuring method and an alignment method using thereof6 Jul 2010US 7,750,295 B2CEBT Co., Ltd.
- Transport Package for Charged Particle Gun and Maintenance Method for Charged Particle Gun20 Aug 2026US 2026/0245824 A1Hitachi High-Tech Corporation
- Charged Particle Beam Source and Charged Particle Beam System5 Oct 2023US 2023/0317400 A1JEOL Ltd.
- Method for use with a radiotherapy device2 Dec 2021US 2021/0370098 A1Elekta Limited
- Method and apparatus for detecting electron beam source filament wear16 May 2019US 2019/0147578 A1Arcam AB
- Electron gun and x-ray source and ct device having the electron gun5 Jul 2018US 2018/0190464 A1Nuctech Company Limited
Most cited
By later US patents
- Article comprising MEMS-based two-dimensional e-beam sources and method for making the same134US 6,809,465 B2Samsung Electronics Co., Ltd. · 2004
- Electron gun15US 4,621,213 AImatron, Inc. · 1986
- Mechanically adjustable electron gun apparatus7US 3,997,807 ARCA Corporation · 1976
- Open type X-ray generating apparatus6US 6,639,969 B2Hamamatsu Photonics K.K. · 2003
- Electron beam generator for an electron beam gun5US 5,089,686 APTR Prazisionstechnik GmbH · 1992