H01J 2229/4813
Pre-focusing
H01J2229/4813 (Pre-focusing) appears on 9 US grants and 7 published applications in this corpus.
Search patents in H01J- Granted patents
- 9
- Published applications
- 7
- Assignees
- 11
- Inventors
- 26
- Latest grant
- 7 Jan 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year.
Recent patents
- Electron-beam spot optimization7 Jan 2020US 10,529,529 B2Moxtek, Inc.
- Cathode-ray tube apparatus17 Oct 2006US 7,122,977 B2Kabushiki Kaisha Toshiba
- Cathode-ray tube17 Jan 2006US 6,987,367 B2Kabushiki Kaisha Toshiba
- Display device and cathode ray tube18 Jan 2005US 6,844,665 B2Koninklijke Philips Electronics N. V.
- Flat cathode-ray tube, electron gun for flat cathode-ray tube and producing method thereof23 Mar 2004US 6,710,533 B2Sony Corporation
- Electron-Beam Spot Optimization26 Oct 2017US 2017/0309436 A1Moxtek, Inc.
- Display device having an electron gun with pre-focusing lens portion15 Jun 2006US 2006/0125403 A1LG. Philips Displays
- Cathode-ray tube16 Dec 2004US 2004/0251836 A1Kabushiki Kaisha Toshiba
- Cathode-ray tube apparatus28 Oct 2004US 2004/0212327 A1Kabushiki Kaisha Toshiba
- Flat cathode-ray tube, electron gun for flat cathode-ray tube and producing method thereof30 Jan 2003US 2003/0020390 A1Sony Corporation
Most cited
By later US patents
- Color picture tube including an electron gun in a coated tube neck4US 6,559,586 B1Samsung Display Devices Co., Ltd. · 2003
- Cathode-ray tube apparatus4US 6,570,349 B2Kabushiki Kaisha Toshiba · 2003
- Flat cathode-ray tube, electron gun for flat cathode-ray tube and producing method thereof1US 6,710,533 B2Sony Corporation · 2004
- Display device and cathode ray tube1US 6,844,665 B2Koninklijke Philips Electronics N. V. · 2005