- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 23/037 - Single reels or spools
Patent holdings for IPC class G11B 23/037
Total number of patents in this class: 80
10-year publication summary
|
1
|
1
|
0
|
1
|
9
|
10
|
8
|
13
|
17
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Group Corporation | 15597 |
38 |
| FUJIFILM Corporation | 30512 |
21 |
| Sony Corporation | 30208 |
8 |
| International Business Machines Corporation | 62621 |
8 |
| Oracle International Corporation | 13548 |
3 |
| IBM Israel - Science &technology Ltd. | 240 |
1 |
| Rakuten Group, Inc. | 1640 |
1 |
| Other owners | 0 |