- 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: 602
10-year publication summary
|
45
|
45
|
29
|
16
|
22
|
17
|
15
|
11
|
10
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 8537 |
157 |
| Seagate Technology LLC | 3967 |
95 |
| Fuji Electric Co., Ltd. | 5106 |
57 |
| Resonac Hard Disk Corporation | 177 |
54 |
| Toshiba Corporation | 12286 |
30 |
| Showa Denko K.K. | 2274 |
18 |
| Sony Corporation | 31148 |
16 |
| FUJIFILM Corporation | 29228 |
15 |
| WD Media (Singapore) Pte. Ltd. | 28 |
12 |
| Hoya Corporation | 2734 |
10 |
| Hoya Magnetics Singapore Pte. Ltd. | 18 |
9 |
| Connect720 Technologies, LLC | 9 |
8 |
| Samsung Electronics Co., Ltd. | 144143 |
6 |
| International Business Machines Corporation | 61023 |
6 |
| Western Digital Technologies, Inc. | 1765 |
5 |
| Moresco Corporation | 160 |
5 |
| Tohoku University | 2755 |
5 |
| Toshiba Electronic Devices & Storage Corporation | 1920 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42118 |
4 |
| Carnegie Mellon University | 1523 |
4 |
| Other owners | 81 |