H01J 31/40
Having grid-like image screen through which the electron ray passes and by
Official title: having grid-like image screen through which the electron ray passes and by which the ray is influenced before striking the output electrode, i.e. having "triode action"
H01J31/40 (Having grid-like image screen through which the electron ray passes and by) appears on 3 US grants and 1 published applications in this corpus.
Search patents in H01J- Granted patents
- 3
- Published applications
- 1
- Assignees
- 6
- Inventors
- 19
- Latest grant
- 19 Jun 2012
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Imaging apparatus having electron source array19 Jun 2012US 8,203,611 B2Futaba Corporation
- Television camera tube having channeled photosensitive target spaced from signal electrode24 May 1977US 4,025,814 AU. S. Philips Corporation
- Device with control grid for electrostatographic reproduction of an optical image25 Jan 1977US 4,005,438 AXerox Corporation
Most cited
By later US patents
- Device with control grid for electrostatographic reproduction of an optical image7US 4,005,438 AXerox Corporation · 1977
- Television camera tube having channeled photosensitive target spaced from signal electrode3US 4,025,814 AU. S. Philips Corporation · 1977
- Imaging apparatus having electron source array1US 8,203,611 B2Futaba Corporation · 2012