- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 31/38 - Tubes with photoconductive screen, e.g. vidicon
Patent holdings for IPC class H01J 31/38
Total number of patents in this class: 10
10-year publication summary
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pioneer Corporation | 4399 |
7 |
| Panasonic Corporation | 20173 |
1 |
| Olympus Corporation | 13199 |
1 |
| Pioneer Micro Technology Corporation | 58 |
1 |
| Other owners | 0 |