- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 19/20 - DrivingStartingStoppingControl thereof
Patent holdings for IPC class G11B 19/20
Total number of patents in this class: 407
10-year publication summary
|
23
|
31
|
40
|
24
|
11
|
20
|
27
|
22
|
11
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec Corporation | 2818 |
65 |
| JPMorgan Chase Bank, National Association | 8978 |
54 |
| Seagate Technology LLC | 3967 |
28 |
| Toshiba Corporation | 12726 |
27 |
| Minebea Mitsumi Inc. | 1983 |
27 |
| Toshiba Electronic Devices & Storage Corporation | 2432 |
26 |
| Rohm Co., Ltd. | 6908 |
14 |
| Western Digital Technologies, Inc. | 1912 |
9 |
| EVault, Inc. | 45 |
8 |
| NTN Corporation | 4925 |
7 |
| LG Innotek Co., Ltd. | 8566 |
6 |
| Samsung Electronics Co., Ltd. | 159029 |
5 |
| International Business Machines Corporation | 62805 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48861 |
5 |
| Samhongsa Co., Ltd. | 35 |
5 |
| Panasonic Corporation | 18716 |
4 |
| Fujitsu Limited | 16833 |
4 |
| Renesas Electronics Corporation | 5855 |
4 |
| Headway Technologies, Inc. | 680 |
4 |
| STMicroelectronics S.r.l. | 3367 |
4 |
| Other owners | 96 |