- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 23/30 - Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus with provision for auxiliary signals
Patent holdings for IPC class G11B 23/30
Total number of patents in this class: 69
10-year publication summary
|
0
|
1
|
1
|
2
|
5
|
4
|
12
|
11
|
2
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
25 |
| Sony Corporation | 32931 |
14 |
| Sony Group Corporation | 10730 |
5 |
| HIRO 21 Corporation | 5 |
4 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| Toshiba Corporation | 12017 |
1 |
| Intel Corporation | 45621 |
1 |
| Fujitsu Limited | 19265 |
1 |
| Hitachi Consumer Electronics Co., Ltd. | 300 |
1 |
| Sun Microsystems, Inc. | 312 |
1 |
| Murata Manufacturing Co., Ltd. | 22355 |
1 |
| Thomson Licensing | 4027 |
1 |
| Hewlett Packard Enterprise Development LP | 10702 |
1 |
| Arjowiggins Security | 143 |
1 |
| IntelligentDisc, Inc. | 7 |
1 |
| Morgan Stanley Senior Funding, Inc., AS Agent | 1727 |
1 |
| Sony Semiconductor Solutions Corporation | 8770 |
1 |
| UPM Raflatac Oy | 236 |
1 |
| Other owners | 1 |