- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/64 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
Patent holdings for IPC class G11B 5/64
Total number of patents in this class: 193
10-year publication summary
|
19
|
12
|
11
|
10
|
8
|
1
|
6
|
2
|
1
|
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 |
25 |
| Seagate Technology LLC | 3929 |
13 |
| Fuji Electric Co., Ltd. | 4980 |
12 |
| Sony Corporation | 31541 |
10 |
| Showa Denko K.K. | 2337 |
9 |
| JPMorgan Chase Bank, National Association | 8416 |
9 |
| FUJIFILM Corporation | 28805 |
8 |
| Tanaka Kikinzoku Kogyo K.K. | 589 |
5 |
| Hoya Corporation | 2745 |
4 |
| Tohoku University | 2683 |
4 |
| National Institute for Materials Science | 1108 |
3 |
| Sony Group Corporation | 12664 |
3 |
| Bmic LLC | 683 |
3 |
| MR Technologies, GmbH | 3 |
3 |
| Matsushita Electric Industrial Co., Ltd. | 2826 |
2 |
| Dai Nippon Printing Co., Ltd. | 3976 |
2 |
| Braun GmbH | 1322 |
2 |
| CertainTeed Corporation | 270 |
2 |
| Tagit - Eas LTD | 2 |
2 |
| Hoya Lamphun Ltd. | 10 |
2 |
| Other owners | 70 |