- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
Patent holdings for IPC class G11B 5/667
Total number of patents in this class: 193
10-year publication summary
|
19
|
11
|
8
|
13
|
9
|
7
|
8
|
8
|
7
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 10964 |
31 |
| Showa Denko K.K. | 2539 |
23 |
| Seagate Technology LLC | 4228 |
18 |
| Sony Corporation | 32931 |
15 |
| SANYO Special Steel Co., Ltd. | 201 |
14 |
| Hoya Corporation | 2822 |
12 |
| Resonac Corporation | 2233 |
12 |
| Toshiba Corporation | 12017 |
8 |
| Fuji Electric Co., Ltd. | 4750 |
7 |
| Tohoku University | 2526 |
6 |
| Hoya Magnetics Singapore Pte. Ltd. | 18 |
6 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
5 |
| International Business Machines Corporation | 60644 |
3 |
| Hoya Glass Disk Vietnam II Ltd. | 13 |
3 |
| Toshiba Electronic Devices & Storage Corporation | 1602 |
3 |
| Showa Denko HD Singapore Pte Ltd. | 5 |
3 |
| Sony Group Corporation | 10730 |
3 |
| Hitachi Metals, Ltd. | 2175 |
2 |
| Fuji Electric Device Technology Co., Ltd. | 17 |
2 |
| Fuji Electric (Malaysia) Sdn, Bhd. | 5 |
2 |
| Other owners | 15 |