- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/1398 - Means for shaping the cross-section of the beam, e.g. into circular or elliptical cross-section
Patent holdings for IPC class G11B 7/1398
Total number of patents in this class: 2
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
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|---|---|---|
| Sony Corporation | 30208 |
1 |
| Mitsubishi Electric Corporation | 47971 |
1 |
| Other owners | 0 |