- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 21/20 - Supporting the headsSupporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
Patent holdings for IPC class G11B 21/20
Total number of patents in this class: 17
10-year publication summary
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0
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1
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0
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0
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0
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0
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0
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0
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1
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seagate Technology LLC | 3979 |
4 |
| SAE Magnetics (H.K.) Ltd. | 333 |
3 |
| JPMorgan Chase Bank, National Association | 8445 |
3 |
| Hutchinson Technology Incorporated | 311 |
2 |
| Samsung Electronics Co., Ltd. | 140289 |
1 |
| TDK Corporation | 6573 |
1 |
| Headway Technologies, Inc. | 699 |
1 |
| Magnecomp Corporation | 198 |
1 |
| NHK Spring Co., Ltd. | 1779 |
1 |
| Other owners | 0 |