G11B 5/5573
Details of the magnetic circuit
Official title: {Details of the magnetic circuit, e.g. of actuators}
G11B5/5573 (Details of the magnetic circuit) appears on 58 US grants and 43 published applications in this corpus.
Search patents in G11B- Granted patents
- 58
- Published applications
- 43
- Assignees
- 13
- Inventors
- 134
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 3 | 2 |
| 2013 | 1 | 1 |
| 2014 | 3 | 1 |
| 2015 | 3 | 3 |
| 2016 | 2 | 2 |
| 2017 | 2 | 1 |
| 2018 | 2 | 3 |
| 2019 | 1 | 1 |
| 2020 | 6 | 5 |
| 2021 | 6 | 5 |
| 2022 | 10 | 5 |
| 2023 | 5 | 7 |
| 2024 | 4 | 4 |
| 2025 | 8 | 2 |
| 2026 | 2 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Anticipatory track switching microactuator track switch to enable track profile interpolation and control15 Sep 2026US 12,738,295 B1Seagate Technology LLC
- Mitigating oxygen depletion in sealed enclosure heat assisted magnetic recording disk drives28 Apr 2026US 12,614,570 B2Seagate Technology LLC
- Magnetic disk device and method of controlling the same9 Dec 2025US 12,494,225 B1Kabushiki Kaisha Toshiba
- Hard disk drive voice coil motor actuator with low-density wire coil and high-density coil stiffener18 Nov 2025US 12,475,921 B1Western Digital Technologies, Inc.
- Digital-filter engine with pre-compute of output28 Oct 2025US 12,456,486 B1Kabushiki Kaisha Toshiba
- Disk device9 Jul 2026US 2026/0196243 A1Kabushiki Kaisha Toshiba
- Mitigating oxygen depletion in sealed enclosure heat assisted magnetic recording disk drives5 Jun 2025US 2025/0182794 A1Seagate Technology LLC
- Disk device20 Mar 2025US 2025/0095676 A1Kabushiki Kaisha Toshiba
- Extended center stiffener plate for improved structural dynamics of actuators in a multi-actuator hard disk drive15 Aug 2024US 2024/0274159 A1Western Digital Technologies, Inc.
- In-situ install of cross-flux magnet in voice coil motor actuator27 Jun 2024US 2024/0212707 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Disk drive actuator having a C-shaped bobbin with wings adjacent longitudinal coil legs49US 8,189,298 B1Western Digital Technologies, Inc. · 2012
- Disk drive actuator having a bobbin contacting a closed coil periphery at two locations48US 8,125,740 B1Western Digital Technologies, Inc. · 2012
- Disk drive with a biased actuator latch, and having a first permanent magnet that is larger than a second permanent magnet46US 8,760,816 B1Western Digital Technologies, Inc. · 2014
- Multiple disk stack, single actuator hard disk drive40US 8,958,172 B1HGST Netherlands B. V. · 2015
- Hard disk drive having multiple disk stacks and a movable head stack assembly28US 8,824,094 B1HGST Netherlands B. V. · 2014