- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/70 - Record carriers characterised by the selection of the material comprising one or more layers of magnetisable particles homogeneously mixed with a bonding agent on a base layer
Patent holdings for IPC class G11B 5/70
Total number of patents in this class: 289
10-year publication summary
|
7
|
25
|
36
|
29
|
25
|
38
|
33
|
33
|
25
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29350 |
168 |
| Sony Group Corporation | 13785 |
54 |
| Sony Corporation | 31065 |
40 |
| International Business Machines Corporation | 61210 |
3 |
| Maxell, Ltd. | 2791 |
3 |
| Intel Corporation | 46962 |
2 |
| Seagate Technology LLC | 3965 |
2 |
| Showa Denko K.K. | 2244 |
2 |
| JPMorgan Chase Bank, National Association | 8558 |
2 |
| Resonac Corporation | 2790 |
2 |
| Resonac Hard Disk Corporation | 178 |
2 |
| Toshiba Corporation | 12334 |
1 |
| Hitachi Maxell, Ltd. | 438 |
1 |
| Konica Minolta Holdings, Inc. | 926 |
1 |
| National Institute of Advanced Industrial Science and Technology | 3805 |
1 |
| The Furukawa Electric Co., Ltd. | 3646 |
1 |
| IBM United Kingdom Limited | 4352 |
1 |
| National Institute for Materials Science | 1104 |
1 |
| Toyobo Co., Ltd. | 2490 |
1 |
| IBM (China) Investment Co Ltd | 2057 |
1 |
| Other owners | 0 |