- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/39 - Structure or manufacture of flux-sensitive heads using magneto-resistive devices
Patent holdings for IPC class G11B 5/39
Total number of patents in this class: 1579
10-year publication summary
|
133
|
142
|
96
|
82
|
110
|
73
|
51
|
57
|
46
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 8661 |
344 |
| TDK Corporation | 6805 |
236 |
| Seagate Technology LLC | 3985 |
215 |
| Headway Technologies, Inc. | 683 |
134 |
| International Business Machines Corporation | 62148 |
83 |
| Toshiba Corporation | 12698 |
66 |
| FUJIFILM Corporation | 30206 |
48 |
| Western Digital Technologies, Inc. | 1813 |
34 |
| Canon Anelva Corporation | 686 |
32 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47071 |
31 |
| Sony Corporation | 30461 |
26 |
| National Institute for Materials Science | 1088 |
21 |
| Samsung Electronics Co., Ltd. | 153093 |
13 |
| SAE Magnetics (H.K.) Ltd. | 317 |
12 |
| Allegro Microsystems, LLC | 1401 |
12 |
| Fujitsu Limited | 17129 |
11 |
| Kioxia Corporation | 10704 |
11 |
| JPMorgan Chase Bank, N.A., AS The Agent | 2656 |
11 |
| Toshiba Electronic Devices & Storage Corporation | 2264 |
10 |
| Alps Alpine Co., Ltd. | 2222 |
10 |
| Other owners | 219 |