- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/24038 - Multiple laminated recording layers
Patent holdings for IPC class G11B 7/24038
Total number of patents in this class: 117
10-year publication summary
|
11
|
7
|
7
|
6
|
6
|
7
|
6
|
5
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 31530 |
22 |
| FUJIFILM Corporation | 28829 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 29800 |
15 |
| Mitsubishi Electric Corporation | 44904 |
13 |
| Sony Group Corporation | 12716 |
8 |
| Case Western Reserve University | 1774 |
6 |
| Taiyo Yuden Co., Ltd. | 1889 |
6 |
| General Electric Company | 17794 |
4 |
| Memory-Tech Holdings Inc. | 20 |
4 |
| Hitachi Consumer Electronics Co., Ltd. | 285 |
3 |
| Panasonic Corporation | 20313 |
2 |
| Huawei Technologies Co., Ltd. | 106915 |
2 |
| Pioneer Corporation | 4620 |
2 |
| SONOPRESS GmBH | 7 |
2 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6243 |
2 |
| Folio Photonics, Inc. | 6 |
2 |
| Toshiba Corporation | 12060 |
1 |
| Hewlett-Packard Development Company, L.P. | 27447 |
1 |
| Hitachi, Ltd. | 15239 |
1 |
| Digilens, Inc. | 211 |
1 |
| Other owners | 4 |