H01J 29/456
Exhibiting no discontinuities
Official title: {exhibiting no discontinuities, e.g. consisting of uniform layers}
H01J29/456 (Exhibiting no discontinuities) appears on 44 US grants and 0 published applications in this corpus.
Search patents in H01J- Granted patents
- 44
- Published applications
- 0
- Assignees
- 12
- Inventors
- 75
- Latest grant
- 3 Aug 1993
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Photoconductive imaging apparatus3 Aug 1993US 5,233,265 AHitachi, Ltd.
- Method of fabricating an image pick-up tube and target section used therewith4 Jun 1991US 5,021,705 AHitachi, Ltd.
- Photoconductive device and method of operating the same28 Aug 1990US 4,952,839 AHitachi, Ltd.
- Target of image pickup tube having an amorphous semiconductor laminate13 Feb 1990US 4,900,975 AHitachi, Ltd.
- Photoconductive device and method of operating the same19 Dec 1989US 4,888,521 AHitachi, Ltd.
No published applications in this class yet.
Most cited
By later US patents
- Photoconductive imaging apparatus34US 5,233,265 AHitachi, Ltd. · 1993
- Photoconductive device and method of operating the same25US 4,888,521 AHitachi, Ltd. · 1989
- Photoconductive device and method of operating the same25US 4,952,839 AHitachi, Ltd. · 1990
- Method of manufacturing light sensitive heterodiode13US 3,941,672 AHitachi, Ltd. · 1976
- Photoconductive films11US 4,040,985 AHitachi, Ltd. · 1977