- 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
|
195
|
143
|
133
|
142
|
96
|
82
|
108
|
73
|
45
|
21
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 10964 |
348 |
| TDK Corporation | 6306 |
253 |
| Seagate Technology LLC | 4228 |
223 |
| Headway Technologies, Inc. | 715 |
132 |
| International Business Machines Corporation | 60644 |
89 |
| Toshiba Corporation | 12017 |
64 |
| FUJIFILM Corporation | 27102 |
42 |
| Canon Anelva Corporation | 676 |
34 |
| Sony Corporation | 32931 |
27 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
25 |
| National Institute for Materials Science | 1108 |
19 |
| Samsung Electronics Co., Ltd. | 131630 |
15 |
| SAE Magnetics (H.K.) Ltd. | 355 |
15 |
| Fujitsu Limited | 19265 |
14 |
| Allegro Microsystems, LLC | 1206 |
12 |
| Alps Alpine Co., Ltd. | 1831 |
12 |
| Kioxia Corporation | 9847 |
12 |
| Western Digital Technologies, Inc. | 1043 |
11 |
| Alps Electric Co., Ltd. | 851 |
8 |
| Hitachi, Ltd. | 16452 |
7 |
| Other owners | 220 |