- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/2542 - Record carriers characterised by the selection of the material of layers other than recording layers of protective topcoat layers consisting essentially of organic resins
Patent holdings for IPC class G11B 7/2542
Total number of patents in this class: 9
10-year publication summary
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0
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0
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0
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0
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3
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1
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0
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1
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1
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 30829 |
3 |
| Sony Group Corporation | 14438 |
2 |
| Bayer Intellectual Property GmbH | 2459 |
1 |
| Bayer MaterialScience AG | 774 |
1 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2873 |
1 |
| M-real Oyj | 25 |
1 |
| Other owners | 0 |