- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/127 - Structure or manufacture of heads, e.g. inductive
Patent holdings for IPC class G11B 5/127
Total number of patents in this class: 1475
10-year publication summary
|
107
|
70
|
65
|
68
|
65
|
54
|
40
|
31
|
20
|
5
|
| 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 | 8657 |
392 |
| Headway Technologies, Inc. | 684 |
259 |
| Seagate Technology LLC | 3979 |
206 |
| Toshiba Corporation | 12698 |
144 |
| TDK Corporation | 6814 |
102 |
| SAE Magnetics (H.K.) Ltd. | 315 |
73 |
| Toshiba Electronic Devices & Storage Corporation | 2281 |
61 |
| International Business Machines Corporation | 62279 |
25 |
| Hutchinson Technology Incorporated | 306 |
19 |
| NHK Spring Co., Ltd. | 1943 |
15 |
| Western Digital Technologies, Inc. | 1804 |
11 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47518 |
9 |
| Resonac Hard Disk Corporation | 199 |
7 |
| FUJIFILM Corporation | 30294 |
6 |
| Sony Corporation | 30368 |
5 |
| Hitachi, Ltd. | 15918 |
5 |
| Canon Inc. | 42406 |
4 |
| Oracle International Corporation | 13474 |
4 |
| Magnecomp Corporation | 201 |
4 |
| Samsung Semiconductor Inc. | 68 |
4 |
| Other owners | 120 |