H01J 2201/30419
Pillar shaped emitters
H01J2201/30419 (Pillar shaped emitters) appears on 5 US grants and 7 published applications in this corpus.
Search patents in H01J- Granted patents
- 5
- Published applications
- 7
- Assignees
- 6
- Inventors
- 25
- Latest grant
- 13 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2009 | 0 | 3 |
| 2010 | 0 | 0 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Carbon-metal structure and method for manufacturing carbon-metal structure13 Dec 2022US 11,527,378 B2Meidensha Corporation
- Emitter, electron gun using emitter, electronic apparatus using electron gun, and method of producing emitter17 Jul 2018US 10,026,585 B2National Institute for Materials Science
- Field emission light emitting device including an emitter within a nanochannel in a dielectric matrix2 Oct 2012US 8,278,815 B2Xerox Corporation
- Method of forming field emission light emitting device including the formation of an emitter within a nanochannel in a dielectric matrix30 Aug 2011US 8,007,333 B2Xerox Corporation
- Field emission light emitting device2 Aug 2011US 7,990,068 B2Xerox Corporation
- Field emitter and method for manufacturing same15 Jan 2026US 2026/0018362 A1Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano) , Chinese Academy of Sciences
- Carbon-metal structure and method for manufacturing carbon-metal structure2 Dec 2021US 2021/0375572 A1Meidensha Corporation
- Emitter, Electron Gun Using Emitter, Electronic Apparatus Using Electron Gun, and Method of Producing Emitter18 Jan 2018US 2018/0019091 A1National Institute for Materials Science
- Method of forming field emission light emitting device including the formation of an emitter within a nanochannel in a dielectric matrix17 Nov 2011US 2011/0279013 A1Xerox Corporation
- Field emission light emitting device10 Dec 2009US 2009/0302738 A1Xerox Corporation
Most cited
By later US patents