- 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: 1582
10-year publication summary
|
143
|
133
|
142
|
96
|
82
|
110
|
73
|
50
|
56
|
41
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 8593 |
344 |
| TDK Corporation | 6873 |
239 |
| Seagate Technology LLC | 3970 |
214 |
| Headway Technologies, Inc. | 694 |
134 |
| International Business Machines Corporation | 61621 |
83 |
| Toshiba Corporation | 12516 |
66 |
| FUJIFILM Corporation | 29714 |
48 |
| Canon Anelva Corporation | 683 |
33 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 44282 |
31 |
| Western Digital Technologies, Inc. | 1756 |
29 |
| Sony Corporation | 30891 |
26 |
| National Institute for Materials Science | 1105 |
21 |
| Samsung Electronics Co., Ltd. | 148173 |
13 |
| SAE Magnetics (H.K.) Ltd. | 328 |
13 |
| Fujitsu Limited | 17689 |
12 |
| Allegro Microsystems, LLC | 1361 |
12 |
| Alps Alpine Co., Ltd. | 2122 |
11 |
| Kioxia Corporation | 10440 |
11 |
| Toshiba Electronic Devices & Storage Corporation | 2073 |
10 |
| JPMorgan Chase Bank, N.A., AS The Agent | 2619 |
10 |
| Other owners | 222 |