- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/1378 - Separate aberration correction lensesCylindrical lenses to generate astigmatismBeam expanders
Patent holdings for IPC class G11B 7/1378
Total number of patents in this class: 9
10-year publication summary
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0
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1
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1
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0
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1
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0
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0
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0
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0
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0
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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 Intellectual Property Management Co., Ltd. | 33911 |
2 |
| LG Electronics Inc. | 75654 |
1 |
| Sony Corporation | 30208 |
1 |
| Panasonic Corporation | 19060 |
1 |
| Mitsubishi Electric Corporation | 47971 |
1 |
| Konica Minolta Advanced Layers, Inc. | 217 |
1 |
| Funai Electric Co., Ltd. | 503 |
1 |
| FEC IP LLC | 225 |
1 |
| Other owners | 0 |