- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 15/68 - Automatic cassette-changing arrangements
Patent holdings for IPC class G11B 15/68
Total number of patents in this class: 265
10-year publication summary
|
28
|
13
|
38
|
18
|
10
|
13
|
11
|
13
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 60336 |
75 |
| Oracle International Corporation | 12628 |
28 |
| Fujitsu Limited | 18413 |
16 |
| Spectra Logic Corporation | 139 |
14 |
| NEC Platforms, Ltd. | 1147 |
13 |
| Quantum Corporation | 305 |
12 |
| NEC Embedded Products, Ltd. | 20 |
11 |
| IBM United Kingdom Limited | 4379 |
10 |
| FUJIFILM Corporation | 28873 |
9 |
| Oracle America, Inc. | 3384 |
9 |
| Sony Corporation | 31486 |
6 |
| Seagate Technology LLC | 3979 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 30018 |
4 |
| Amazon Technologies, Inc. | 26042 |
4 |
| NEC Personal Products, Ltd. | 18 |
4 |
| Venture Corporation Limited | 21 |
4 |
| Hewlett Packard Enterprise Development LP | 10656 |
3 |
| CenturyLink Intellectual Property LLC | 1188 |
3 |
| Submer Technologies, S.L. | 46 |
3 |
| NEC Corporation | 34662 |
2 |
| Other owners | 29 |