- 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: 611
10-year publication summary
|
71
|
45
|
45
|
29
|
16
|
21
|
17
|
16
|
11
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 10964 |
157 |
| Seagate Technology LLC | 4228 |
98 |
| Fuji Electric Co., Ltd. | 4750 |
57 |
| Resonac Corporation | 2233 |
55 |
| Toshiba Corporation | 12017 |
30 |
| Showa Denko K.K. | 2539 |
19 |
| Sony Corporation | 32931 |
17 |
| FUJIFILM Corporation | 27102 |
14 |
| WD Media (Singapore) Pte. Ltd. | 28 |
12 |
| Hoya Corporation | 2822 |
11 |
| Hoya Magnetics Singapore Pte. Ltd. | 18 |
9 |
| Connect720 Technologies, LLC | 9 |
8 |
| Samsung Electronics Co., Ltd. | 131630 |
6 |
| International Business Machines Corporation | 60644 |
6 |
| Moresco Corporation | 151 |
5 |
| Tohoku University | 2526 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
4 |
| Carnegie Mellon University | 1405 |
4 |
| Toshiba Electronic Devices & Storage Corporation | 1602 |
4 |
| The Regents of the University of California | 18943 |
3 |
| Other owners | 87 |