- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 3/70 - Record carriers characterised by the selection of material or structureProcesses or apparatus specially adapted for manufacturing record carriers
Patent holdings for IPC class G11B 3/70
Total number of patents in this class: 48
10-year publication summary
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3
|
2
|
1
|
1
|
1
|
0
|
1
|
2
|
3
|
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 Corporation | 18751 |
8 |
| Resonac Hard Disk Corporation | 208 |
4 |
| NBCUniversal Media, LLC | 553 |
3 |
| Princo America Corp. | 5 |
3 |
| Princo Corp. | 19 |
3 |
| Samsung Electronics Co., Ltd. | 158842 |
2 |
| SK Hynix Inc. | 12640 |
2 |
| Universita degli Studi di Roma "La Sapienza" | 234 |
2 |
| Rebeat Innovation GmbH | 5 |
2 |
| Evolution Music Ltd | 2 |
2 |
| Samsung Display Co., Ltd. | 39012 |
1 |
| Sony Corporation | 30080 |
1 |
| Toshiba Corporation | 12660 |
1 |
| FUJIFILM Corporation | 30653 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
1 |
| Via Technologies, Inc. | 986 |
1 |
| Pioneer Corporation | 3761 |
1 |
| JPMorgan Chase Bank, National Association | 8975 |
1 |
| EMC IP Holding Company LLC | 10608 |
1 |
| EnXnet, Inc. | 1 |
1 |
| Other owners | 7 |