- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/66 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
Patent holdings for IPC class G11B 5/66
Total number of patents in this class: 577
10-year publication summary
|
45
|
29
|
16
|
22
|
17
|
15
|
11
|
12
|
11
|
3
|
| 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 | 8649 |
154 |
| Seagate Technology LLC | 3984 |
90 |
| Fuji Electric Co., Ltd. | 5369 |
57 |
| Resonac Hard Disk Corporation | 199 |
51 |
| Toshiba Corporation | 12698 |
29 |
| Sony Corporation | 30481 |
16 |
| FUJIFILM Corporation | 30192 |
14 |
| Showa Denko K.K. | 2114 |
14 |
| WD Media (Singapore) Pte. Ltd. | 28 |
12 |
| Connect720 Technologies, LLC | 9 |
8 |
| Hoya Corporation | 2739 |
7 |
| Western Digital Technologies, Inc. | 1814 |
7 |
| Samsung Electronics Co., Ltd. | 152914 |
6 |
| International Business Machines Corporation | 62123 |
6 |
| Toshiba Electronic Devices & Storage Corporation | 2262 |
6 |
| Hoya Magnetics Singapore Pte. Ltd. | 10 |
6 |
| Carnegie Mellon University | 1603 |
5 |
| Moresco Corporation | 175 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47015 |
4 |
| Tohoku University | 2893 |
4 |
| Other owners | 76 |