- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 17/038 - Centering or locking of a plurality of discs in a single cartridge
Patent holdings for IPC class G11B 17/038
Total number of patents in this class: 82
10-year publication summary
|
5
|
3
|
8
|
7
|
6
|
6
|
4
|
5
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoya Corporation | 2691 |
24 |
| International Business Machines Corporation | 62754 |
7 |
| JPMorgan Chase Bank, National Association | 8971 |
7 |
| Seagate Technology LLC | 3962 |
5 |
| The Furukawa Electric Co., Ltd. | 3693 |
4 |
| NHK Spring Co., Ltd. | 1994 |
4 |
| UACJ Corporation | 740 |
4 |
| Futurewei Technologies, Inc. | 3787 |
3 |
| Intri-plex Technologies, Inc. | 29 |
3 |
| Toshiba Storage Device Corporation | 55 |
3 |
| Sony Corporation | 30097 |
2 |
| Fujitsu Limited | 16859 |
2 |
| LG Innotek Co., Ltd. | 8525 |
2 |
| PHC Holdings Corporation | 708 |
2 |
| Toshiba Corporation | 12625 |
1 |
| ALPHANA Technology Co., Ltd. | 3 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
1 |
| Agency for Science, Technology and Research | 3753 |
1 |
| Dolby International AB | 1012 |
1 |
| Magnext Ltd | 2 |
1 |
| Other owners | 4 |