G11B 5/5552
Using fine positioning means for track acquisition separate from the coarse positioning
Official title: {using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means}
G11B5/5552 (Using fine positioning means for track acquisition separate from the coarse positioning) appears on 984 US grants and 583 published applications in this corpus.
Search patents in G11B- Granted patents
- 984
- Published applications
- 583
- Assignees
- 156
- Inventors
- 1,171
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 0 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 16 | 0 |
| 1999 | 18 | 0 |
| 2000 | 33 | 0 |
| 2001 | 50 | 25 |
| 2002 | 57 | 69 |
| 2003 | 81 | 64 |
| 2004 | 78 | 63 |
| 2005 | 61 | 45 |
| 2006 | 76 | 41 |
| 2007 | 45 | 43 |
| 2008 | 40 | 29 |
| 2009 | 47 | 29 |
| 2010 | 32 | 22 |
| 2011 | 15 | 9 |
| 2012 | 33 | 9 |
| 2013 | 13 | 14 |
| 2014 | 24 | 8 |
| 2015 | 31 | 10 |
| 2016 | 28 | 8 |
| 2017 | 18 | 15 |
| 2018 | 20 | 11 |
| 2019 | 12 | 12 |
| 2020 | 21 | 15 |
| 2021 | 17 | 8 |
| 2022 | 15 | 11 |
| 2023 | 7 | 9 |
| 2024 | 7 | 5 |
| 2025 | 9 | 6 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Head driving device11 Aug 2026US 12,706,114 B2NHK Spring Co., Ltd.
- Increased VCM current resolution during track follow to decrease NRRO11 Aug 2026US 12,706,116 B2Western Digital Technologies, Inc.
- Disk drive suspension assembly with single actuator28 Jul 2026US 12,694,898 B2Magnecomp Corporation
- Voltage slew control of fine actuators in hard disk drive16 Jun 2026US 12,658,207 B1Western Digital Technologies, Inc.
- Data storage device with self-learning oscillation detector6 Jan 2026US 12,518,789 B2Western Digital Technologies, Inc.
- Magnetic disk device and signal synchronization method17 Sep 2026US 2026/0279394 A1Kabushiki Kaisha Toshiba
- Disk Drive Suspension Assembly With Base Plate For Improved Sway Frequency7 May 2026US 2026/0128059 A1Magnecomp Corporation
- Evaluation method, manufacturing method, and disk device23 Apr 2026US 2026/0112390 A1Kabushiki Kaisha Toshiba
- Disk Drive Suspension Assembly With Single Actuator13 Nov 2025US 2025/0349315 A1Magnecomp Corporation
- Magnetic disk drive18 Sep 2025US 2025/0292794 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Collocated rotating flexure microactuator for dual-stage servo in disk drives225US 6,376,964 B1Read-Rite Corporation · 2002
- Microactuator with offsetting hinges and method for high-resolution positioning of magnetic read/write head222US 6,760,196 B1Western Digital Corporation · 2004
- Active fly height control crown actuator214US 6,950,266 B1Western Digital (Fremont), LLC · 2005
- Symmetrical microactuator structure for use in mass data storage devices, or the like208US 6,473,274 B1Texas Instruments Incorporated · 2002
- Disk drive actuator arm with microactuated read/write head positioning198US 6,421,211 B1Read-Rite Corporation · 2002