- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/125 - Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devicesModulators, e.g. means for controlling the size or intensity of optical spots or optical traces
Patent holdings for IPC class G11B 7/125
Total number of patents in this class: 441
10-year publication summary
|
4
|
5
|
3
|
2
|
5
|
3
|
2
|
2
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20313 |
66 |
| Pioneer Corporation | 4620 |
61 |
| Koninklijke Philips Electronics N.V. | 10809 |
39 |
| Matsushita Electric Industrial Co., Ltd. | 2760 |
37 |
| Konica Minolta Opto, Inc. | 1131 |
21 |
| NEC Corporation | 34467 |
20 |
| Sony Corporation | 31530 |
15 |
| Ricoh Company, Ltd. | 13222 |
12 |
| TDK Corporation | 6543 |
11 |
| Hitachi Consumer Electronics Co., Ltd. | 285 |
10 |
| Sharp Kabushiki Kaisha | 18855 |
9 |
| Samsung Electronics Co., Ltd. | 139302 |
7 |
| Fujitsu Limited | 18401 |
7 |
| Mitsubishi Electric Corporation | 44904 |
7 |
| Sanyo Electric Co., Ltd. | 3789 |
7 |
| Hewlett-Packard Development Company, L.P. | 27447 |
6 |
| Alps Electric Co., Ltd. | 835 |
6 |
| Taiyo Yuden Co., Ltd. | 1889 |
6 |
| FUJIFILM Corporation | 28829 |
5 |
| Seagate Technology LLC | 3929 |
5 |
| Other owners | 84 |