H01J 29/566
For correcting aberration
Official title: {for correcting aberration}
H01J29/566 (For correcting aberration) appears on 43 US grants and 7 published applications in this corpus.
Search patents in H01J- Granted patents
- 43
- Published applications
- 7
- Assignees
- 21
- Inventors
- 80
- Latest grant
- 1 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 3 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Time-of-flight mass spectrometer and method for improving mass and spatial resolution of an image1 Mar 2022US 11,264,229 B1
- Compact modular cathode11 Jun 2019US 10,319,554 B2Massachusetts Institute of Technology
- Electron microscope24 Sep 2013US 8,541,755 B1JEOL Ltd.
- Color picture tube apparatus15 Nov 2005US 6,965,192 B2Matsushita Electric Industrial Co., Ltd.
- Cathode ray tube apparatus with electron beam forming structure19 Aug 2003US 6,608,435 B1Kabushiki Kaisha Toshiba
- Time-of-flight mass spectrometer and method for improving mass and spatial resolution of an image17 Feb 2022US 2022/0051886 A1
- Compact modular cathode21 Dec 2017US 2017/0365438 A1Massachusetts Institute of Technology
- Deflection yoke for correcting misconvergence11 Aug 2005US 2005/0174035 A1
- Deflection yoke and color picture tube apparatus6 Jan 2005US 2005/0001941 A1
- Deflection coil for deflection yoke23 Sep 2004US 2004/0183426 A1
Most cited
By later US patents
- Electron gun with chain-link main lens for static correction of electron beam astigmatism28US 5,488,265 AChunghwa Picture Tubes, Ltd. · 1996
- Cathode ray tube24US 4,772,827 AHitachi, Ltd. · 1988
- Cathode ray tube with compensation for beam landing spot distortion due to wide-angle beam deflection15US 3,949,262 ASony Corporation · 1976
- Color picture tube apparatus13US 4,818,919 AKabushiki Kaisha Toshiba · 1989
- Main lens structure for a color cathode ray tube11US 5,625,252 AHitachi, Ltd. · 1997