- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 5/255 - Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to, the recording mediumPole piecesGap features comprising means for protection against wear
Patent holdings for IPC class G11B 5/255
Total number of patents in this class: 76
10-year publication summary
|
18
|
10
|
12
|
11
|
3
|
6
|
6
|
3
|
4
|
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 | 61734 |
30 |
| JPMorgan Chase Bank, National Association | 8614 |
14 |
| Seagate Technology LLC | 3975 |
8 |
| Oracle International Corporation | 13096 |
5 |
| Toshiba Corporation | 12540 |
3 |
| SAE Magnetics (H.K.) Ltd. | 327 |
3 |
| Alter Domus (US) LLC, AS Agent for The Secured Parties | 206 |
3 |
| Toshiba Electronic Devices & Storage Corporation | 2097 |
2 |
| ddm hopt + schuler GmbH & Co. KG | 14 |
1 |
| GFD Gesellschaft für Diamantprodukte mbH | 22 |
1 |
| MidCap Financial Trust | 120 |
1 |
| National University of Singapore | 2511 |
1 |
| NHK Spring Co., Ltd. | 1910 |
1 |
| Shenzhen Tsimec Co., Ltd. | 1 |
1 |
| Seagate Technologv LLC | 1 |
1 |
| JPMorgan Chase Bank, N.A., AS The Agent | 2625 |
1 |
| Other owners | 0 |