- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/584 - Disposition or mounting of heads relative to record carriers with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
Patent holdings for IPC class G11B 5/584
Total number of patents in this class: 451
10-year publication summary
|
64
|
40
|
19
|
40
|
44
|
47
|
43
|
32
|
31
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 60644 |
156 |
| FUJIFILM Corporation | 27102 |
98 |
| Sony Corporation | 32931 |
56 |
| Oracle International Corporation | 12313 |
17 |
| JPMorgan Chase Bank, National Association | 10964 |
16 |
| Hewlett Packard Enterprise Development LP | 10702 |
13 |
| Quantum Corporation | 332 |
12 |
| Sony Group Corporation | 10730 |
12 |
| Oracle America, Inc. | 3928 |
10 |
| IBM United Kingdom Limited | 4467 |
9 |
| Twitter, Inc. | 1293 |
6 |
| NEC Platforms, Ltd. | 1106 |
4 |
| Hewlett-Packard Development Company, L.P. | 28538 |
3 |
| Group 47, Inc. | 5 |
3 |
| Dell Products L.P. | 11144 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
| Imation Corp. | 47 |
2 |
| Marvell Asia PTE, Ltd. | 6841 |
2 |
| Cavium International | 5549 |
2 |
| Quantum Lto Holdings, LLC | 8 |
2 |
| Other owners | 24 |