- 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: 261
10-year publication summary
|
14
|
20
|
12
|
11
|
5
|
10
|
12
|
24
|
20
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Showa Denko K.K. | 2539 |
38 |
| FUJIFILM Corporation | 27102 |
36 |
| SANYO Special Steel Co., Ltd. | 201 |
23 |
| Fuji Electric Co., Ltd. | 4750 |
19 |
| Sony Group Corporation | 10730 |
19 |
| Sony Corporation | 32931 |
16 |
| Hoya Corporation | 2822 |
11 |
| JPMorgan Chase Bank, National Association | 10964 |
11 |
| Tohoku University | 2526 |
9 |
| WD Media (Singapore) Pte. Ltd. | 28 |
7 |
| Hoya Magnetics Singapore Pte. Ltd. | 18 |
7 |
| Resonac Corporation | 2233 |
7 |
| Hitachi Metals, Ltd. | 2175 |
5 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
5 |
| Seagate Technology LLC | 4228 |
4 |
| The Furukawa Electric Co., Ltd. | 3486 |
3 |
| Fuji Electric Device Technology Co., Ltd. | 17 |
3 |
| National Institute for Materials Science | 1108 |
3 |
| UACJ Corporation | 631 |
3 |
| The Procter & Gamble Company | 22178 |
2 |
| Other owners | 30 |