- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/2531 - Record carriers characterised by the selection of the material of layers other than recording layers of substrates comprising glass
Patent holdings for IPC class G11B 7/2531
Total number of patents in this class: 10
10-year publication summary
|
2
|
2
|
2
|
1
|
0
|
0
|
1
|
2
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agc, Inc. | 5590 |
4 |
| Dai Nippon Printing Co., Ltd. | 4254 |
2 |
| FUJIFILM Corporation | 30628 |
1 |
| Corning Incorporated | 10518 |
1 |
| Microsoft Technology Licensing, LLC | 54524 |
1 |
| Nippon Electric Glass Co., Ltd. | 2561 |
1 |
| Other owners | 0 |