- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 25/04 - Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing using flat record carriers, e.g. disc, card
Patent holdings for IPC class G11B 25/04
Total number of patents in this class: 330
10-year publication summary
|
24
|
18
|
20
|
37
|
34
|
27
|
22
|
17
|
15
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JPMorgan Chase Bank, National Association | 10964 |
49 |
| Toshiba Corporation | 12017 |
44 |
| Seagate Technology LLC | 4228 |
35 |
| Toshiba Electronic Devices & Storage Corporation | 1602 |
35 |
| Western Digital Technologies, Inc. | 1043 |
14 |
| Pioneer Corporation | 4843 |
12 |
| Nidec Corporation | 2579 |
12 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
7 |
| Mitsubishi Electric Corporation | 43934 |
6 |
| Nidec Sankyo Corporation | 1117 |
6 |
| Panasonic Corporation | 20786 |
5 |
| Fujitsu Limited | 19265 |
5 |
| Hoya Corporation | 2822 |
5 |
| Minebea Mitsumi Inc. | 1461 |
5 |
| Hitachi, Ltd. | 16452 |
4 |
| Koninklijke Philips Electronics N.V. | 13133 |
3 |
| Dell Products L.P. | 11144 |
3 |
| EVault, Inc. | 62 |
3 |
| HIRO 21 Corporation | 5 |
3 |
| Lnw Gaming, Inc. | 1777 |
3 |
| Other owners | 71 |