- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 21/12 - Raising and loweringBack-spacing or forward-spacing along trackReturning to starting position
Patent holdings for IPC class G11B 21/12
Total number of patents in this class: 97
10-year publication summary
|
3
|
1
|
2
|
4
|
11
|
6
|
3
|
5
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seagate Technology LLC | 3960 |
16 |
| JPMorgan Chase Bank, National Association | 8956 |
16 |
| Toshiba Corporation | 12560 |
8 |
| Fujitsu Limited | 16874 |
5 |
| Toshiba Electronic Devices & Storage Corporation | 2322 |
5 |
| Murata Manufacturing Co., Ltd. | 25744 |
3 |
| Rohm Co., Ltd. | 6826 |
3 |
| Western Digital Technologies, Inc. | 1893 |
3 |
| Texas Instruments Incorporated | 19672 |
2 |
| Renesas Electronics Corporation | 5870 |
2 |
| SAE Magnetics (H.K.) Ltd. | 313 |
2 |
| STMicroelectronics International N.V. | 4157 |
2 |
| Toshiba Storage Device Corporation | 55 |
2 |
| Resonac Hard Disk Corporation | 207 |
2 |
| International Business Machines Corporation | 62634 |
1 |
| Canon Inc. | 43817 |
1 |
| Maxtor Corporation | 4 |
1 |
| TDK Corporation | 6858 |
1 |
| Headway Technologies, Inc. | 684 |
1 |
| Thomson Licensing | 3194 |
1 |
| Other owners | 20 |