- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 21/10 - Track finding or aligning by moving the head
Patent holdings for IPC class G11B 21/10
Total number of patents in this class: 259
10-year publication summary
|
5
|
6
|
5
|
15
|
14
|
10
|
22
|
41
|
21
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29506 |
30 |
| Sony Group Corporation | 14045 |
28 |
| JPMorgan Chase Bank, National Association | 8575 |
27 |
| Toshiba Corporation | 12397 |
23 |
| Toshiba Electronic Devices & Storage Corporation | 2003 |
20 |
| NHK Spring Co., Ltd. | 1874 |
13 |
| Sony Corporation | 30957 |
10 |
| Fujitsu Limited | 18393 |
10 |
| Magnecomp Corporation | 202 |
7 |
| Toshiba Storage Device Corporation | 55 |
7 |
| International Business Machines Corporation | 61402 |
6 |
| Seagate Technology LLC | 3969 |
6 |
| Hitachi, Ltd. | 15537 |
5 |
| Marvell Asia PTE, Ltd. | 6533 |
4 |
| TDK Corporation | 6796 |
3 |
| Group 47, Inc. | 5 |
3 |
| Cavium International | 4996 |
3 |
| Avago Technologies International Sales Pte. Limited | 8721 |
3 |
| Oracle International Corporation | 12988 |
2 |
| Mitsubishi Electric Corporation | 46346 |
2 |
| Other owners | 47 |