H01J 2237/06333
Photo emission
H01J2237/06333 (Photo emission) appears on 108 US grants and 124 published applications in this corpus.
Search patents in H01J- Granted patents
- 108
- Published applications
- 124
- Assignees
- 70
- Inventors
- 262
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 5 |
| 2005 | 0 | 3 |
| 2006 | 6 | 3 |
| 2007 | 3 | 1 |
| 2008 | 2 | 2 |
| 2009 | 3 | 2 |
| 2010 | 3 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 3 | 7 |
| 2014 | 6 | 3 |
| 2015 | 4 | 4 |
| 2016 | 7 | 7 |
| 2017 | 1 | 2 |
| 2018 | 6 | 1 |
| 2019 | 3 | 9 |
| 2020 | 11 | 10 |
| 2021 | 6 | 9 |
| 2022 | 6 | 13 |
| 2023 | 9 | 14 |
| 2024 | 4 | 9 |
| 2025 | 14 | 3 |
| 2026 | 1 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electron beam applicator and creation method of detection data in electron beam applicator15 Sep 2026US 12,738,441 B2Photo electron Soul Inc.
- Charged particle beam apparatus and control method for charged particle beam apparatus16 Dec 2025US 12,500,064 B2JEOL Ltd.
- Electron beam devices with semiconductor ultraviolet light source21 Oct 2025US 12,451,314 B2Gaska Consulting, LLC
- Spin-resolved ultrafast electron diffraction7 Oct 2025US 12,436,117 B2University of Houston System
- Electron beam application device7 Oct 2025US 12,437,958 B2Hitachi High-Tech Corporation
- Applied electron beam device and electron beam generation method3 Sep 2026US 2026/0260838 A1Hitachi High-Tech Corporation
- Electron Beam Application Device20 Aug 2026US 2026/0245828 A1Hitachi High-Tech Corporation
- Systems and methods for petahertz optoelectronics13 Aug 2026US 2026/0235539 A1Georg-August-Universität Göttingen Stiftung Öffentlichen Rechts
- Local observation method, program, storage medium, and electron beam applicator18 Jun 2026US 2026/0171351 A1Photo electron Soul Inc.
- Control System For Ultrafast Electron Beam Microscope4 Jun 2026US 2026/0155328 A1Board of Trustees of Michigan State University
Most cited
By later US patents
- Laser stimulated high current density photoelectron generator and method of manufacture235US 4,460,831 AThermo Electron Corporation · 1984
- Generating electrons with an activated photocathode68US 7,015,467 B2APPLIED Materials.Inc. · 2006
- Hetero-junction electron emitter with Group III nitride and activated alkali halide45US 7,446,474 B2APPLIED Materials.Inc. · 2008
- Inspection device27US 8,497,476 B2Ebara Corporation · 2013
- Electron lithography using a photocathode26US 5,395,738 A1995