- 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: 1567
10-year publication summary
|
143
|
133
|
142
|
96
|
82
|
109
|
73
|
50
|
56
|
10
|
| 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 | 8507 |
345 |
| TDK Corporation | 6641 |
245 |
| Seagate Technology LLC | 3974 |
215 |
| Headway Technologies, Inc. | 694 |
131 |
| International Business Machines Corporation | 60696 |
85 |
| Toshiba Corporation | 12249 |
65 |
| FUJIFILM Corporation | 29129 |
45 |
| Canon Anelva Corporation | 686 |
34 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 41731 |
29 |
| Sony Corporation | 31227 |
26 |
| Western Digital Technologies, Inc. | 1704 |
20 |
| National Institute for Materials Science | 1105 |
20 |
| Samsung Electronics Co., Ltd. | 142777 |
13 |
| Fujitsu Limited | 18323 |
13 |
| SAE Magnetics (H.K.) Ltd. | 331 |
13 |
| Allegro Microsystems, LLC | 1305 |
12 |
| Alps Alpine Co., Ltd. | 2033 |
12 |
| Kioxia Corporation | 10256 |
11 |
| Everspin Technologies, Inc. | 484 |
9 |
| Toshiba Electronic Devices & Storage Corporation | 1902 |
9 |
| Other owners | 215 |