H01J 2235/064
Movement of cathode
H01J2235/064 (Movement of cathode) appears on 34 US grants and 35 published applications in this corpus.
Search patents in H01J- Granted patents
- 34
- Published applications
- 35
- Assignees
- 25
- Inventors
- 83
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 3 | 4 |
| 2007 | 1 | 4 |
| 2008 | 3 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 3 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 2 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 3 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 2 | 4 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- X-ray source for X-ray diffraction apparatus, related apparatus and method25 Nov 2025US 12,480,895 B2Proto Patents Ltd.
- Electron beam generation source, electron beam emission device, and x-ray emission device24 Dec 2024US 12,176,175 B2Hamamatsu Photonics K.K.
- Field emission cathode device and method of forming a field emission cathode device25 Jun 2024US 12,020,890 B2NCX Corporation
- Field emission device, field emission method and positioning and fixing method21 May 2024US 11,990,308 B2Meidensha Corporation
- Field emission device and field emission method3 Oct 2023US 11,776,785 B2Meidensha Corporation
- Electric field emission device9 Jan 2025US 2025/0014853 A1Meidensha Corporation
- X-ray source for x-ray diffraction apparatus, related apparatus and method22 Feb 2024US 2024/0060911 A1Proto Patents Ltd.
- Field emission cathode device and method of forming a field emission cathode device16 Nov 2023US 2023/0369002 A1NCX Corporation
- Field emission device and field emission method22 Jun 2023US 2023/0197394 A1Meidensha Corporation
- Field emission device, field emission method and positioning and fixing method22 Jun 2023US 2023/0197395 A1Meidensha Corporation
Most cited
By later US patents
- X-ray generating mechanism using electron field emission cathode190US 6,553,096 B1University of North Carolina - Chapel Hill · 2003
- Large-area individually addressable multi-beam x-ray system and method of forming same85US 6,876,724 B2University of North Carolina - Chapel Hill · 2005
- Method and apparatus for controlling electron beam current57US 7,085,351 B2The University of North Carolina at Chapel Hill · 2006
- X-ray generating mechanism using electron field emission cathode39US 6,850,595 B2The University of North Carolina at Chapel Hill · 2005
- Multi X-ray imaging apparatus and control method therefor16US 7,991,114 B2Canon Kabushiki Kaisha · 2011