- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/24012 - Optical cards
Patent holdings for IPC class G11B 7/24012
Total number of patents in this class: 11
10-year publication summary
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0
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0
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1
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2
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1
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1
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1
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2
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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
|
|---|---|---|
| Sony Corporation | 30080 |
3 |
| Sony Corporation of America | 407 |
1 |
| Toshiba Corporation | 12660 |
1 |
| Murata Manufacturing Co., Ltd. | 25893 |
1 |
| Fujikura Ltd. | 3117 |
1 |
| Public University Corporation Nagoya City University | 172 |
1 |
| Toppan Printing Co., Ltd. | 2080 |
1 |
| Sony Group Corporation | 15934 |
1 |
| Blue Ridge Innovations, LLC | 231 |
1 |
| Other owners | 0 |