H01J 31/34
Having regulation of screen potential at cathode potential
Official title: having regulation of screen potential at cathode potential, e.g. orthicon
H01J31/34 (Having regulation of screen potential at cathode potential) appears on 56 US grants and 4 published applications in this corpus.
Search patents in H01J- Granted patents
- 56
- Published applications
- 4
- Assignees
- 25
- Inventors
- 98
- Latest grant
- 1 Feb 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Vented header assembly of an image intensifier device1 Feb 2011US 7,880,128 B2ITT Manufacturing Enterprises, Inc.
- Imaging apparatus having electron source array that emits electrons during a blanking period16 Nov 2010US 7,834,308 B2Futaba Corporation
- Electro-optical device including a field emission array and photoconductive layer13 Apr 2004US 6,720,569 B1Motorola, Inc.
- Camera with a very fast non-smear tube24 Aug 1999US 5,943,091 AFrance Telecom
- Flat panel detector and image sensor with means for columating and focusing electron beams14 Apr 1998US 5,739,522 AUniversity of Connecticut
- Image sensing apparatus2 Aug 2012US 2012/0194881 A1Pioneer Corporation
- Imaging apparatus21 Jun 2012US 2012/0153129 A1Pioneer Corporation
- Vented header assembly of an image intensifier device29 Apr 2010US 2010/0102205 A1ITT Manufacturing Enterprises, Inc.
- Imaging apparatus having electron source array27 Nov 2008US 2008/0290254 A1Futaba Corporation
Most cited
By later US patents
- Porous diaphragms21US 3,930,979 AImperial Chemical Industries PLC · 1976
- Flat panel detector and image sensor17US 5,567,929 AUniversity of Connecticut · 1996
- Imaging apparatus and operation method of the same13US 5,488,386 AHitachi, Ltd. & Nippon Hoso Kyokai · 1996
- Low light level image pick-up tube arrangement12US 3,974,331 AThomson-CSF · 1976
- Electrical information storage system11US 4,085,455 AXerox Corporation · 1978