- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
Patent holdings for IPC class G11B 5/667
Total number of patents in this class: 166
10-year publication summary
|
8
|
13
|
9
|
7
|
8
|
8
|
6
|
2
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 8949 |
32 |
| Seagate Technology LLC | 3963 |
19 |
| Sony Corporation | 30208 |
15 |
| Showa Denko K.K. | 2072 |
13 |
| SANYO Special Steel Co., Ltd. | 246 |
13 |
| Resonac Hard Disk Corporation | 207 |
13 |
| Toshiba Corporation | 12548 |
9 |
| Fuji Electric Co., Ltd. | 5469 |
7 |
| International Business Machines Corporation | 62621 |
4 |
| Hoya Corporation | 2719 |
4 |
| Toshiba Electronic Devices & Storage Corporation | 2318 |
4 |
| Tohoku University | 2970 |
3 |
| Showa Denko HD Singapore Pte Ltd. | 5 |
3 |
| Sony Group Corporation | 15597 |
3 |
| Hitachi Metals, Ltd. | 1900 |
2 |
| Fuji Electric Device Technology Co., Ltd. | 10 |
2 |
| Fuji Electric (Malaysia) Sdn, Bhd. | 5 |
2 |
| Hoya Glass Disk Vietnam II Ltd. | 15 |
2 |
| Seagate Technology International | 15 |
2 |
| Hoya Magnetics Singapore Pte. Ltd. | 10 |
2 |
| Other owners | 12 |