- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 23/03 - Containers for flat record carriers
Patent holdings for IPC class G11B 23/03
Total number of patents in this class: 125
10-year publication summary
|
8
|
9
|
15
|
13
|
10
|
6
|
4
|
8
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 30139 |
18 |
| Panasonic Intellectual Property Management Co., Ltd. | 34080 |
15 |
| International Business Machines Corporation | 62672 |
8 |
| Panasonic Corporation | 18951 |
8 |
| Hoya Corporation | 2719 |
7 |
| Alter Domus (US) LLC, AS Agent for The Secured Parties | 193 |
5 |
| Sony Semiconductor Solutions Corporation | 11648 |
4 |
| Seagate Technology LLC | 3959 |
3 |
| MeadWestvaco Corporation | 272 |
3 |
| Hitachi Consumer Electronics Co., Ltd. | 282 |
2 |
| FUJIFILM Corporation | 30543 |
2 |
| Nidec Corporation | 2818 |
2 |
| Sony Group Corporation | 15745 |
2 |
| Samsung Electronics Co., Ltd. | 158156 |
1 |
| 3m Innovative Properties Company | 17484 |
1 |
| NEC Corporation | 37064 |
1 |
| Warner Bros. Home Entertainment Inc. | 2 |
1 |
| Toshiba Corporation | 12577 |
1 |
| Hitachi Maxell, Ltd. | 419 |
1 |
| Oracle America, Inc. | 2499 |
1 |
| Other owners | 39 |