- 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: 140
10-year publication summary
|
3
|
8
|
9
|
15
|
13
|
10
|
6
|
4
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 31124 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 31084 |
15 |
| Panasonic Corporation | 20149 |
12 |
| International Business Machines Corporation | 61144 |
8 |
| Hoya Corporation | 2738 |
7 |
| Alter Domus (US) LLC, AS Agent for The Secured Parties | 212 |
5 |
| Sony Semiconductor Solutions Corporation | 10355 |
4 |
| Seagate Technology LLC | 3968 |
3 |
| MeadWestvaco Corporation | 341 |
3 |
| Hitachi Consumer Electronics Co., Ltd. | 285 |
2 |
| FUJIFILM Corporation | 29273 |
2 |
| Oracle America, Inc. | 3177 |
2 |
| Nidec Corporation | 2648 |
2 |
| Trade Guys International Pty Ltd. | 2 |
2 |
| Sony Group Corporation | 13616 |
2 |
| Samsung Electronics Co., Ltd. | 144675 |
1 |
| 3m Innovative Properties Company | 17853 |
1 |
| Sony Ericsson Mobile Communications AB | 1802 |
1 |
| NEC Corporation | 35471 |
1 |
| Warner Bros. Home Entertainment Inc. | 5 |
1 |
| Other owners | 47 |