H01J 31/18
With image written by a ray or beam on a grid-like charge-accumulating
Official title: with image written by a ray or beam on a grid-like charge-accumulating screen, and with a ray or beam passing through and influenced by this screen before striking the luminescent screen, e.g. direct-view storage tube {(charge storage grids exhibiting triode effect H01J29/395)}
H01J31/18 (With image written by a ray or beam on a grid-like charge-accumulating) appears on 6 US grants and 0 published applications in this corpus.
Search patents in H01J- Granted patents
- 6
- Published applications
- 0
- Assignees
- 5
- Inventors
- 10
- Latest grant
- 18 Sep 1990
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 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 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Display device having first and second cold cathodes18 Sep 1990US 4,958,104 ACanon Kabushiki Kaisha
- Storage target for direct-view storage tubes14 Apr 1981US 4,262,230 AIwatsu Electric Co., Ltd.
- Cathode ray tube having an electron lens system including a meshless scan expansion post deflection acceleration lens12 Feb 1980US 4,188,563 ATektronix, Inc.
- Spray gun for a direct-vision image storage tube and an image-storage tube using this gun22 Jan 1980US 4,185,226 AThomson-CSF
- Cathode ray tube having an electron lens system including a meshless scan expansion post deflection acceleration lens30 Jan 1979US 4,137,479 ATektronix, Inc.
No published applications in this class yet.
Most cited
By later US patents
- Display device having first and second cold cathodes14US 4,958,104 ACanon Kabushiki Kaisha · 1990
- Cathode ray tube having an electron lens system including a meshless scan expansion post deflection acceleration lens6US 4,137,479 ATektronix, Inc. · 1979
- Cathode ray tube having an electron lens system including a meshless scan expansion post deflection acceleration lens3US 4,188,563 ATektronix, Inc. · 1980
- Spray gun for a direct-vision image storage tube and an image-storage tube using this gun2US 4,185,226 AThomson-CSF · 1980
- Storage target for direct-view storage tubes2US 4,262,230 AIwatsu Electric Co., Ltd. · 1981