- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 3/74 - Multiple output tracks, e.g. binaural stereophonic
Patent holdings for IPC class G11B 3/74
Total number of patents in this class: 5
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 18658 |
1 |
| Hitachi Consumer Electronics Co., Ltd. | 282 |
1 |
| Mitsubishi Electric Corporation | 48409 |
1 |
| TDK Corporation | 7039 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5297 |
1 |
| Other owners | 0 |