- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 7/0065 - Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
Patent holdings for IPC class G11B 7/0065
Total number of patents in this class: 476
10-year publication summary
|
52
|
25
|
6
|
9
|
11
|
21
|
11
|
6
|
19
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Consumer Electronics Co., Ltd. | 285 |
73 |
| Samsung Electronics Co., Ltd. | 139302 |
28 |
| Fujitsu Limited | 18401 |
24 |
| Pioneer Corporation | 4620 |
24 |
| Hitachi, Ltd. | 15239 |
22 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6243 |
15 |
| NEC Corporation | 34467 |
14 |
| Koninklijke Philips Electronics N.V. | 10809 |
14 |
| Microsoft Technology Licensing, LLC | 52911 |
14 |
| FUJIFILM Corporation | 28829 |
13 |
| General Electric Company | 17794 |
12 |
| Alps Electric Co., Ltd. | 835 |
12 |
| Amethystum Storage Technology Co., Ltd. | 14 |
11 |
| Sony Corporation | 31530 |
9 |
| Mitsubishi Chemical Corporation | 4453 |
9 |
| Thomson Licensing | 3785 |
8 |
| Hitachi-LG Data Storage, Inc. | 185 |
7 |
| Matsushita Electric Industrial Co., Ltd. | 2760 |
6 |
| Covestro Deutschland AG | 2696 |
6 |
| National Central University | 226 |
6 |
| Other owners | 149 |