- 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: 267
10-year publication summary
|
6
|
5
|
15
|
14
|
10
|
22
|
41
|
22
|
21
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Group Corporation | 15313 |
35 |
| FUJIFILM Corporation | 30327 |
32 |
| JPMorgan Chase Bank, National Association | 8683 |
27 |
| Toshiba Corporation | 12687 |
23 |
| Toshiba Electronic Devices & Storage Corporation | 2288 |
20 |
| NHK Spring Co., Ltd. | 1950 |
15 |
| Sony Corporation | 30327 |
10 |
| Fujitsu Limited | 16991 |
9 |
| Magnecomp Corporation | 201 |
7 |
| Toshiba Storage Device Corporation | 55 |
7 |
| International Business Machines Corporation | 62325 |
6 |
| Seagate Technology LLC | 3975 |
6 |
| Hitachi, Ltd. | 15944 |
5 |
| Marvell Asia PTE, Ltd. | 6340 |
4 |
| TDK Corporation | 6821 |
3 |
| Group 47, Inc. | 5 |
3 |
| Cavium International | 4737 |
3 |
| Avago Technologies International Sales Pte. Limited | 8586 |
3 |
| Oracle International Corporation | 13493 |
2 |
| Mitsubishi Electric Corporation | 47722 |
2 |
| Other owners | 45 |