H01J 2223/06
Electron or ion guns
H01J2223/06 (Electron or ion guns) appears on 5 US grants and 1 published applications in this corpus.
Search patents in H01J- Granted patents
- 5
- Published applications
- 1
- Assignees
- 4
- Inventors
- 10
- Latest grant
- 18 Jan 2005
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Transducer with field emitter array18 Jan 2005US 6,844,860 B2
- Field emission type cold-cathode electron gun with focusing electrode17 Sep 2002US 6,452,335 B1NEC Corporation
- Electron beam gun18 Apr 2000US 6,051,917 ANikon Corporation
- Method of heat shrink assembly of traveling wave tube12 Oct 1999US 5,964,633 AHughes Electronics Corporation
- Electron orbit control in a betatron7 Jun 1994US 5,319,314 ASchlumberger Technology Corporation
Most cited
By later US patents
- Electron orbit control in a betatron15US 5,319,314 ASchlumberger Technology Corporation · 1994
- Electron beam gun5US 6,051,917 ANikon Corporation · 2000
- Field emission type cold-cathode electron gun with focusing electrode1US 6,452,335 B1NEC Corporation · 2002
- Transducer with field emitter array1US 6,844,860 B22005