H01J 2209/0226
Sharpening or resharpening of emitting point or edge
H01J2209/0226 (Sharpening or resharpening of emitting point or edge) appears on 49 US grants and 13 published applications in this corpus.
Search patents in H01J- Granted patents
- 49
- Published applications
- 13
- Assignees
- 27
- Inventors
- 68
- Latest grant
- 14 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 8 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Emitter, electron gun in which same is used, electronic device in which same is used, and method for manufacturing same14 May 2024US 11,984,294 B2National Institute for Materials Science
- Electron beam apparatus31 Dec 2019US 10,522,319 B2Hitachi High-Technologies Corporation
- Method and device for producing nanotips23 Jan 2018US 9,873,949 B2Ihp GmbH—Innovations for High Performance Microelectronics/Leibniz-Institut Fur Innovative Mikroelektronik
- Techniques for optimizing nanotips derived from frozen taylor cones5 Dec 2017US 9,837,239 B2
- Method for forming tip for carbon nanotube and method for forming field emission structure having the same18 Dec 2012US 8,333,633 B2Hon Hai Precision Industry Co., Ltd.
- Emitter, electron gun in which same is used, electronic device in which same is used, and method for manufacturing same7 Mar 2024US 2024/0079198 A1National Institute for Materials Science
- Electron Beam Apparatus1 Aug 2019US 2019/0237289 A1Hitachi High-Technologies Corporation
- Techniques for Optimizing Nanotips Derived from Frozen Taylor Cones16 Mar 2017US 2017/0076901 A1
- Method and device for producing nanotips30 Jun 2016US 2016/0186333 A1IHP GmbH - Innovations for High Performance Microelectronics/Leibniz-Institut Fur Innovative M
- Method for forming tip for carbon nanotube and method for forming field emission structure having the same5 Jul 2012US 2012/0171920 A1Hon Hai Precision Industry Co., Ltd.
Most cited
By later US patents
- Method to form self-aligned gate structures around cold cathode emitter tips using chemical mechanical polishing technology285US 5,229,331 AMicron Technology, Inc. · 1993
- Method to form self-aligned gate structures and focus rings158US 5,186,670 AMicron Technology, Inc. · 1993
- Method to form self-aligned gate structures around cold cathode emitter tips using chemical mechanical polishing technology146US 5,372,973 AMicron Technology, Inc. · 1994
- Method of making superhard tips for micro-probe microscopy and field emission116US 5,393,647 A1995
- Method to form self-aligned tips for flat panel displays109US 5,151,061 AMicron Technology, Inc. · 1992