- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/738 - Base layers characterised by the intermediate layer
Patent holdings for IPC class G11B 5/738
Total number of patents in this class: 262
10-year publication summary
|
12
|
11
|
5
|
10
|
12
|
24
|
20
|
16
|
18
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30689 |
50 |
| Sony Group Corporation | 15978 |
39 |
| SANYO Special Steel Co., Ltd. | 249 |
23 |
| Showa Denko K.K. | 2059 |
22 |
| Fuji Electric Co., Ltd. | 5533 |
18 |
| Sony Corporation | 30052 |
16 |
| JPMorgan Chase Bank, National Association | 8978 |
11 |
| WD Media (Singapore) Pte. Ltd. | 28 |
7 |
| Resonac Hard Disk Corporation | 207 |
7 |
| Tohoku University | 3034 |
6 |
| Hitachi Metals, Ltd. | 1822 |
5 |
| Hoya Corporation | 2688 |
5 |
| Seagate Technology LLC | 3967 |
4 |
| The Furukawa Electric Co., Ltd. | 3691 |
3 |
| Fuji Electric Device Technology Co., Ltd. | 9 |
3 |
| National Institute for Materials Science | 1088 |
3 |
| UACJ Corporation | 741 |
3 |
| The Procter & Gamble Company | 21862 |
2 |
| Toshiba Corporation | 12726 |
2 |
| Hitachi, Ltd. | 16206 |
2 |
| Other owners | 31 |