- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/65 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
Patent holdings for IPC class G11B 5/65
Total number of patents in this class: 512
10-year publication summary
|
47
|
42
|
35
|
26
|
19
|
20
|
14
|
13
|
9
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fuji Electric Co., Ltd. | 5158 |
52 |
| Showa Denko K.K. | 2222 |
52 |
| JPMorgan Chase Bank, National Association | 8568 |
51 |
| Resonac Hard Disk Corporation | 178 |
38 |
| Seagate Technology LLC | 3969 |
37 |
| Sony Corporation | 31028 |
22 |
| JX Nippon Mining & Metals Corporation | 1488 |
20 |
| Hoya Corporation | 2746 |
19 |
| FUJIFILM Corporation | 29424 |
16 |
| WD Media (Singapore) Pte. Ltd. | 28 |
15 |
| Tohoku University | 2791 |
12 |
| Toshiba Corporation | 12350 |
10 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6272 |
10 |
| Hoya Magnetics Singapore Pte. Ltd. | 18 |
10 |
| Sony Group Corporation | 13879 |
10 |
| Gula Consulting Limited Liability Company | 305 |
9 |
| Tanaka Kikinzoku Kogyo K.K. | 583 |
9 |
| ULVAC, Inc. | 1379 |
8 |
| Hitachi, Ltd. | 15499 |
6 |
| National Institute for Materials Science | 1103 |
6 |
| Other owners | 100 |