- 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: 347
10-year publication summary
|
30
|
27
|
20
|
14
|
15
|
13
|
8
|
16
|
6
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JX Nippon Mining & Metals Corporation | 1524 |
93 |
| SANYO Special Steel Co., Ltd. | 214 |
32 |
| Tanaka Kikinzoku Kogyo K.K. | 589 |
24 |
| Showa Denko K.K. | 2337 |
23 |
| JPMorgan Chase Bank, National Association | 8416 |
16 |
| Resonac Hard Disk Corporation | 171 |
15 |
| Fuji Electric Co., Ltd. | 4980 |
14 |
| Seagate Technology LLC | 3929 |
12 |
| Hoya Corporation | 2745 |
11 |
| Tohoku University | 2683 |
11 |
| Canon Anelva Corporation | 682 |
8 |
| Mitsui Mining & Smelting Co., Ltd. | 1426 |
7 |
| Hoya Magnetics Singapore Pte. Ltd. | 18 |
7 |
| Hitachi Metals, Ltd. | 2021 |
6 |
| Toshiba Corporation | 12051 |
5 |
| WD Media (Singapore) Pte. Ltd. | 28 |
5 |
| Sony Group Corporation | 12664 |
5 |
| Mitsubishi Materials Corporation | 2406 |
4 |
| National Institute for Materials Science | 1108 |
4 |
| Sony Corporation | 31541 |
3 |
| Other owners | 42 |