- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 21/02 - Driving or moving of heads
Patent holdings for IPC class G11B 21/02
Total number of patents in this class: 569
10-year publication summary
|
22
|
29
|
7
|
9
|
8
|
7
|
7
|
7
|
3
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 8971 |
146 |
| Seagate Technology LLC | 3962 |
84 |
| Toshiba Corporation | 12625 |
57 |
| Avago Technologies International Sales Pte. Limited | 8536 |
33 |
| Marvell Asia PTE, Ltd. | 6258 |
28 |
| Cavium International | 4581 |
28 |
| International Business Machines Corporation | 62754 |
12 |
| NHK Spring Co., Ltd. | 1994 |
10 |
| Texas Instruments Incorporated | 19639 |
9 |
| Western Digital Technologies, Inc. | 1902 |
9 |
| Pioneer Corporation | 3765 |
8 |
| Toshiba Electronic Devices & Storage Corporation | 2358 |
7 |
| FUJIFILM Corporation | 30628 |
6 |
| SAE Magnetics (H.K.) Ltd. | 311 |
6 |
| Hewlett Packard Enterprise Development LP | 11519 |
6 |
| LSI Corporation | 154 |
5 |
| TDK Corporation | 6927 |
4 |
| Apple Inc. | 59117 |
3 |
| Panasonic Corporation | 18809 |
3 |
| Oracle America, Inc. | 2471 |
3 |
| Other owners | 102 |