- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/40 - Protective measures on heads, e.g. against excessive temperature
Patent holdings for IPC class G11B 5/40
Total number of patents in this class: 222
10-year publication summary
|
41
|
35
|
28
|
31
|
8
|
15
|
9
|
9
|
8
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seagate Technology LLC | 3979 |
70 |
| JPMorgan Chase Bank, National Association | 8445 |
49 |
| International Business Machines Corporation | 60336 |
39 |
| TDK Corporation | 6573 |
10 |
| Oracle International Corporation | 12628 |
6 |
| Toshiba Corporation | 12104 |
5 |
| Headway Technologies, Inc. | 699 |
5 |
| Western Digital Technologies, Inc. | 1670 |
4 |
| Toshiba Electronic Devices & Storage Corporation | 1822 |
4 |
| Kyndryl, Inc. | 3209 |
4 |
| SAE Magnetics (H.K.) Ltd. | 333 |
3 |
| Quantum Corporation | 305 |
3 |
| ChannelScience, LLC | 8 |
2 |
| Qualcomm Incorporated | 82614 |
1 |
| Oracle America, Inc. | 3384 |
1 |
| Mitsubishi Electric Corporation | 45068 |
1 |
| Dell Products L.P. | 13358 |
1 |
| IBM United Kingdom Limited | 4379 |
1 |
| Magnecomp Corporation | 198 |
1 |
| MidCap Financial Trust | 123 |
1 |
| Other owners | 11 |