- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 19/04 - Arrangements for preventing, inhibiting, or warning against, double recording on the same blank, or against other recording or reproducing malfunctions
Patent holdings for IPC class G11B 19/04
Total number of patents in this class: 283
10-year publication summary
|
18
|
19
|
17
|
14
|
13
|
9
|
8
|
8
|
10
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toshiba Corporation | 12548 |
47 |
| Seagate Technology LLC | 3963 |
38 |
| JPMorgan Chase Bank, National Association | 8949 |
32 |
| Toshiba Electronic Devices & Storage Corporation | 2318 |
28 |
| Avago Technologies International Sales Pte. Limited | 8564 |
10 |
| International Business Machines Corporation | 62621 |
9 |
| Dell Products L.P. | 16972 |
9 |
| JPMorgan Chase Bank, N.A., AS The Agent | 2695 |
7 |
| Marvell Asia PTE, Ltd. | 6313 |
5 |
| Oracle International Corporation | 13548 |
4 |
| Advantest Corporation | 1692 |
4 |
| Adeia Media Holdings Inc. | 854 |
4 |
| Panasonic Corporation | 19060 |
3 |
| Fujitsu Limited | 16862 |
3 |
| Koninklijke Philips Electronics N.V. | 7494 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
3 |
| Analog Devices, Inc. | 3321 |
3 |
| Lenovo Switzerland International GmbH | 2102 |
3 |
| Apple Inc. | 58705 |
2 |
| NEC Corporation | 36934 |
2 |
| Other owners | 64 |