- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/71 - 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 characterised by the lubricant
Patent holdings for IPC class G11B 5/71
Total number of patents in this class: 108
10-year publication summary
|
7
|
12
|
13
|
19
|
10
|
17
|
8
|
9
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29843 |
71 |
| Sony Group Corporation | 14605 |
13 |
| Sony Corporation | 30760 |
10 |
| Seagate Technology LLC | 3977 |
3 |
| International Business Machines Corporation | 61759 |
2 |
| Hoya Corporation | 2761 |
2 |
| Solvay Specialty Polymers Italy S.p.A. | 720 |
2 |
| Western Digital Technologies, Inc. | 1770 |
1 |
| JPMorgan Chase Bank, National Association | 8784 |
1 |
| Dexerials Corporation | 1960 |
1 |
| FujiFilm Hunt Smart Surfaces, LLC | 2 |
1 |
| Resonac Hard Disk Corporation | 186 |
1 |
| Other owners | 0 |