- 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
|
11
|
| 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 | 8669 |
344 |
| TDK Corporation | 6817 |
235 |
| Seagate Technology LLC | 3977 |
215 |
| Headway Technologies, Inc. | 685 |
136 |
| International Business Machines Corporation | 62309 |
83 |
| Toshiba Corporation | 12700 |
67 |
| FUJIFILM Corporation | 30313 |
48 |
| Western Digital Technologies, Inc. | 1805 |
34 |
| Canon Anelva Corporation | 687 |
32 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47675 |
31 |
| Sony Corporation | 30339 |
26 |
| National Institute for Materials Science | 1087 |
21 |
| Samsung Electronics Co., Ltd. | 154987 |
13 |
| SAE Magnetics (H.K.) Ltd. | 315 |
12 |
| Allegro Microsystems, LLC | 1409 |
12 |
| Fujitsu Limited | 16988 |
11 |
| Kioxia Corporation | 10724 |
11 |
| JPMorgan Chase Bank, N.A., AS The Agent | 2695 |
11 |
| Toshiba Electronic Devices & Storage Corporation | 2284 |
10 |
| Alps Alpine Co., Ltd. | 2252 |
10 |
| Other owners | 217 |