H01J 2229/4827
Electrodes formed on surface of common cylindrical support
H01J2229/4827 (Electrodes formed on surface of common cylindrical support) appears on 33 US grants and 5 published applications in this corpus.
Search patents in H01J- Granted patents
- 33
- Published applications
- 5
- Assignees
- 13
- Inventors
- 45
- Latest grant
- 24 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Field emission device24 May 2022US 11,342,153 B2Electronics and Telecommunications Research Institute
- X-ray tube including hybrid electron emission source4 Dec 2018US 10,147,581 B2Electronics and Telecommunications Research Institute
- X-ray tube16 May 2017US 9,653,248 B2Toshiba Electron Tubes & Devices Co., Ltd.
- Radiation generating tube, and radiation generating apparatus and radiation imaging system using the same26 Jul 2016US 9,401,259 B2Canon Kabushiki Kaisha
- Electron gun for cathode-ray tube and method for manufacturing the same7 Sep 2004US 6,787,977 B2Matsushita Electric Industrial Co., Ltd.
- Field emission device30 Sep 2021US 2021/0305002 A1Electronics and Telecommunications Research Institute
- X-ray tube including hybrid electron emission source27 Jul 2017US 2017/0213685 A1Electronics and Telecommunications Research Institute
- X-ray tube30 Apr 2015US 2015/0117617 A1Kabushiki Kaisha Toshiba
- Radiation generating tube, and radiation generating apparatus and radiation imaging system using the same18 Dec 2014US 2014/0369470 A1Canon Kabushiki Kaisha
- Electron gun for cathode-ray tube and method for manufacturing the same23 Jan 2003US 2003/0015953 A1Matsushita Electric Industrial Co., Ltd.
Most cited
By later US patents
- Electron gun for a cathode ray tube26US 5,773,925 ASony Corporation · 1998
- Electron beam device having an electron gun and a method of making the electron gun11US 4,853,589 AU. S. Philips Corporation · 1989
- Cathode ray tube having a tubular electron gun structure11US 4,857,797 AU. S. Philips Corporation · 1989
- Electrostatically focusing type image pickup tubes and method of manufacturing the same10US 4,169,239 AHitachi, Ltd. · 1979
- Method of manufacturing a device having an electric resistance layer and the use of the method8US 4,713,879 AU. S. Philips Corporation · 1987