G11B 5/5526
Control therefor
Official title: {Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof (G11B5/556 takes precedence)}
G11B5/5526 (Control therefor) appears on 1,944 US grants and 716 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,944
- Published applications
- 716
- Assignees
- 260
- Inventors
- 2,564
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 9 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 11 | 0 |
| 1985 | 14 | 0 |
| 1986 | 20 | 0 |
| 1987 | 14 | 0 |
| 1988 | 18 | 0 |
| 1989 | 26 | 0 |
| 1990 | 30 | 0 |
| 1991 | 22 | 0 |
| 1992 | 29 | 0 |
| 1993 | 29 | 0 |
| 1994 | 32 | 0 |
| 1995 | 40 | 0 |
| 1996 | 34 | 0 |
| 1997 | 58 | 0 |
| 1998 | 113 | 0 |
| 1999 | 121 | 0 |
| 2000 | 124 | 0 |
| 2001 | 61 | 15 |
| 2002 | 67 | 47 |
| 2003 | 60 | 53 |
| 2004 | 73 | 70 |
| 2005 | 91 | 70 |
| 2006 | 84 | 65 |
| 2007 | 61 | 50 |
| 2008 | 70 | 58 |
| 2009 | 59 | 39 |
| 2010 | 44 | 19 |
| 2011 | 37 | 14 |
| 2012 | 27 | 14 |
| 2013 | 23 | 9 |
| 2014 | 49 | 14 |
| 2015 | 59 | 19 |
| 2016 | 35 | 17 |
| 2017 | 23 | 10 |
| 2018 | 42 | 16 |
| 2019 | 34 | 15 |
| 2020 | 34 | 18 |
| 2021 | 27 | 13 |
| 2022 | 20 | 14 |
| 2023 | 18 | 15 |
| 2024 | 17 | 14 |
| 2025 | 22 | 17 |
| 2026 | 20 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Data storage device with assistive bursts in servo sectors15 Sep 2026US 12,738,294 B2Western Digital Technologies, Inc.
- Anticipatory track switching microactuator track switch to enable track profile interpolation and control15 Sep 2026US 12,738,295 B1Seagate Technology LLC
- Magnetic disk device and method15 Sep 2026US 12,738,296 B1Kabushiki Kaisha Toshiba
- Increased VCM current resolution during track follow to decrease NRRO11 Aug 2026US 12,706,116 B2Western Digital Technologies, Inc.
- Data storage device with real time fly height predictor for different servo seek sequences and other drive operations21 Jul 2026US 12,688,872 B1Western Digital Technologies, Inc.
- Magnetic disk device and signal synchronization method17 Sep 2026US 2026/0279394 A1Kabushiki Kaisha Toshiba
- Data storage device with real time fly height predictor for different servo seek sequences and other drive operations23 Jul 2026US 2026/0212885 A1Western Digital Technologies, Inc.
- Servo control system25 Jun 2026US 2026/0179651 A1Fanuc Corporation
- Magnetic disk device21 May 2026US 2026/0141919 A1Kabushiki Kaisha Toshiba
- Data storage device with assistive bursts in servo sectors7 May 2026US 2026/0128060 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Class AB H-bridge using current sensing MOSFETs1,035US 6,445,530 B1Seagate Technology LLC · 2002
- PRML sampled data channel synchronous servo detector294US 5,384,671 AQuantum Corporation · 1995
- Sector architecture for fixed block disk drive234US 5,523,903 AInternational Business Machines Corporation · 1996
- Head positioning control system for use in a disk drive using different target velocity data for read and write seeks222US 6,002,544 AKabushiki Kaisha Toshiba · 1999
- Servo data decoder for any amplitude dependent servo data encoding scheme196US 4,740,736 AAdvanced Micro Devices, Inc. · 1988