- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 23/40 - Identifying or analogous means applied to, or incorporated in, the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader or photograph
Patent holdings for IPC class G11B 23/40
Total number of patents in this class: 52
10-year publication summary
|
1
|
0
|
1
|
1
|
0
|
1
|
0
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hewlett-Packard Development Company, L.P. | 25337 |
9 |
| Pioneer Corporation | 3834 |
6 |
| Koninklijke Philips Electronics N.V. | 7895 |
5 |
| Panasonic Corporation | 19485 |
4 |
| Sony Corporation | 30353 |
3 |
| International Business Machines Corporation | 62295 |
3 |
| Seiko Epson Corporation | 20043 |
2 |
| Thomson Licensing | 3268 |
2 |
| Fortium Technologies Ltd. | 4 |
2 |
| Apple Inc. | 58208 |
1 |
| Canon Inc. | 42505 |
1 |
| FUJIFILM Corporation | 30296 |
1 |
| Renesas Electronics Corporation | 5859 |
1 |
| Brother Industries, Ltd. | 12858 |
1 |
| Huawei Technologies Co., Ltd. | 120888 |
1 |
| Alps Electric Co., Ltd. | 779 |
1 |
| 3Lfants Limited | 1 |
1 |
| Giesecke & Devrient GmbH | 827 |
1 |
| IBM United Kingdom Limited | 4093 |
1 |
| Pioneer Digital Design and Manufacturing Corporation | 29 |
1 |
| Other owners | 5 |