- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 23/50 - Reconditioning of record carriersCleaning of record carriers
Patent holdings for IPC class G11B 23/50
Total number of patents in this class: 50
10-year publication summary
|
2
|
3
|
4
|
4
|
3
|
3
|
0
|
4
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30512 |
9 |
| Seagate Technology LLC | 3963 |
5 |
| Venmill Industries Incorporated | 23 |
5 |
| Serenity Data Security, LLC | 10 |
3 |
| International Business Machines Corporation | 62621 |
2 |
| Oracle International Corporation | 13548 |
2 |
| Alter Domus (US) LLC, AS Agent for The Secured Parties | 194 |
2 |
| Sony Corporation | 30208 |
1 |
| Toshiba Corporation | 12548 |
1 |
| Hyundai Motor Company | 24602 |
1 |
| Amazon Technologies, Inc. | 28066 |
1 |
| Showa Denko K.K. | 2072 |
1 |
| JPMorgan Chase Bank, National Association | 8949 |
1 |
| Centre National d'Etudes Spatiales | 398 |
1 |
| Hatbit Illucom Co., Ltd. | 3 |
1 |
| KRUG & Priester GmbH & Co. KG | 23 |
1 |
| NHK Spring Co., Ltd. | 1983 |
1 |
| Osterreichische Akademie der Wissenschaften | 36 |
1 |
| Spectra Logic Corporation | 131 |
1 |
| Yamaguchi Seiken Kogyo Co., Ltd. | 19 |
1 |
| Other owners | 9 |