- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 31/15 - Image or pattern display tubes, i.e. having electrical input and optical outputFlying-spot tubes for scanning purposes with luminescent screen with ray or beam selectively directed to luminescent anode segments
Patent holdings for IPC class H01J 31/15
Total number of patents in this class: 14
10-year publication summary
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| National Institute for Materials Science | 1087 |
5 |
| Sumitomo Chemical Company, Limited | 8967 |
1 |
| Toray Industries, Inc. | 7145 |
1 |
| Nichia Corporation | 3888 |
1 |
| Chelest Corporation | 6 |
1 |
| Chubu Chelest Co., Ltd. | 6 |
1 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2842 |
1 |
| Nagaoka University of Technology | 73 |
1 |
| National University Corporation Gunma University | 296 |
1 |
| Niigata University | 227 |
1 |
| Other owners | 0 |