H01J 29/41
Using secondary emission
Official title: using secondary emission, e.g. for supericonoscope {(electrodes using secondary emission in general H01J1/32; secondary emission tubes H01J43/00)}
H01J29/41 (Using secondary emission) appears on 15 US grants and 0 published applications in this corpus.
Search patents in H01J- Granted patents
- 15
- Published applications
- 0
- Assignees
- 7
- Inventors
- 21
- Latest grant
- 8 Jul 1986
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Scan converter storage tube with a multiple collector storage target, and method of operation8 Jul 1986US 4,599,541 AIwatsu Electric Co., Ltd.
- Storage target for storage tubes and method of fabrication30 Jul 1985US 4,532,453 AIwatsu Electric Co., Ltd.
- Storage device having a semiconductor target25 Dec 1984US 4,490,643 ARCA Corporation
- Secondary electron multiplication target28 Dec 1982US 4,366,413 ATokyo Shibaura Denki Kabushiki Kaisha
- Method of erasing information in a scan converter storage tube8 Sep 1981US 4,288,720 AIwatsu Electric Co., Ltd.
No published applications in this class yet.
Most cited
By later US patents
- Storage target for scan converter tubes10US 4,215,288 AIwatsu Electric Co., Ltd. · 1980
- Cathode ray storage tube having a target dielectric provided with particulate segments of collector electrode extending therethrough6US 3,956,662 ATektronix, Inc. · 1976
- Cathode ray storage tube having a target dielectric provided with collector electrode segments extending therethrough6US 3,978,366 ATektronix, Inc. · 1976
- Secondary electron multiplication target4US 4,366,413 ATokyo Shibaura Denki Kabushiki Kaisha · 1982
- Cathode ray tube with dual collector layer storage target3US 4,185,227 ATektronix, Inc. · 1980