- 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: 1520
10-year publication summary
|
133
|
107
|
70
|
65
|
68
|
65
|
54
|
38
|
29
|
6
|
| 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 | 8537 |
396 |
| Headway Technologies, Inc. | 695 |
269 |
| Seagate Technology LLC | 3967 |
204 |
| Toshiba Corporation | 12286 |
144 |
| TDK Corporation | 6674 |
116 |
| SAE Magnetics (H.K.) Ltd. | 331 |
77 |
| Toshiba Electronic Devices & Storage Corporation | 1920 |
59 |
| International Business Machines Corporation | 61023 |
28 |
| Hutchinson Technology Incorporated | 309 |
22 |
| NHK Spring Co., Ltd. | 1821 |
16 |
| Western Digital Technologies, Inc. | 1765 |
10 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42118 |
9 |
| Resonac Hard Disk Corporation | 177 |
7 |
| Samsung Electronics Co., Ltd. | 144143 |
6 |
| Sony Corporation | 31148 |
6 |
| FUJIFILM Corporation | 29228 |
6 |
| Oracle America, Inc. | 3207 |
6 |
| Hitachi, Ltd. | 15434 |
5 |
| Canon Inc. | 39442 |
4 |
| Oracle International Corporation | 12906 |
4 |
| Other owners | 126 |