- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/851 - Coating a support with a magnetic layer by sputtering
Patent holdings for IPC class G11B 5/851
Total number of patents in this class: 341
10-year publication summary
|
27
|
20
|
14
|
15
|
13
|
8
|
16
|
6
|
11
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JX Nippon Mining & Metals Corporation | 1461 |
90 |
| SANYO Special Steel Co., Ltd. | 246 |
32 |
| Tanaka Kikinzoku Kogyo K.K. | 574 |
25 |
| Resonac Hard Disk Corporation | 207 |
21 |
| Showa Denko K.K. | 2072 |
19 |
| JPMorgan Chase Bank, National Association | 8949 |
17 |
| Fuji Electric Co., Ltd. | 5469 |
14 |
| Seagate Technology LLC | 3963 |
12 |
| Tohoku University | 2970 |
11 |
| JX Advanced Metals Corporation | 206 |
9 |
| Canon Anelva Corporation | 684 |
8 |
| Mitsui Mining & Smelting Co., Ltd. | 1100 |
7 |
| Hitachi Metals, Ltd. | 1900 |
6 |
| Toshiba Corporation | 12548 |
5 |
| WD Media (Singapore) Pte. Ltd. | 28 |
5 |
| Sony Group Corporation | 15597 |
5 |
| National Institute for Materials Science | 1087 |
4 |
| Sony Corporation | 30208 |
3 |
| Hoya Corporation | 2719 |
3 |
| Carnegie Mellon University | 1619 |
3 |
| Other owners | 42 |