- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 23/30 - Record carriers not specific to the method of recording or reproducingAccessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus with provision for auxiliary signals
Patent holdings for IPC class G11B 23/30
Total number of patents in this class: 58
10-year publication summary
|
1
|
2
|
5
|
4
|
12
|
11
|
2
|
3
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30689 |
26 |
| Sony Corporation | 30052 |
14 |
| Sony Group Corporation | 15978 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 34471 |
3 |
| Samsung Electronics Co., Ltd. | 159029 |
1 |
| Toshiba Corporation | 12726 |
1 |
| Fujitsu Limited | 16833 |
1 |
| Hitachi Consumer Electronics Co., Ltd. | 282 |
1 |
| Sun Microsystems, Inc. | 173 |
1 |
| Hewlett Packard Enterprise Development LP | 11544 |
1 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1416 |
1 |
| Sony Semiconductor Solutions Corporation | 11858 |
1 |
| UPM Raflatac Oy | 267 |
1 |
| Toshiba Electronic Devices & Storage Corporation | 2432 |
1 |
| Other owners | 0 |