G11B 5/5534
Initialisation, calibration
Official title: {Initialisation, calibration, e.g. cylinder "set-up"}
G11B5/5534 (Initialisation, calibration) appears on 558 US grants and 147 published applications in this corpus.
Search patents in G11B- Granted patents
- 558
- Published applications
- 147
- Assignees
- 91
- Inventors
- 905
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 14 | 0 |
| 1996 | 10 | 0 |
| 1997 | 21 | 0 |
| 1998 | 39 | 0 |
| 1999 | 47 | 0 |
| 2000 | 46 | 0 |
| 2001 | 25 | 4 |
| 2002 | 16 | 7 |
| 2003 | 10 | 12 |
| 2004 | 12 | 9 |
| 2005 | 17 | 7 |
| 2006 | 13 | 13 |
| 2007 | 13 | 4 |
| 2008 | 11 | 15 |
| 2009 | 13 | 6 |
| 2010 | 14 | 3 |
| 2011 | 10 | 4 |
| 2012 | 8 | 1 |
| 2013 | 4 | 1 |
| 2014 | 15 | 3 |
| 2015 | 20 | 6 |
| 2016 | 15 | 7 |
| 2017 | 13 | 5 |
| 2018 | 19 | 2 |
| 2019 | 16 | 8 |
| 2020 | 21 | 9 |
| 2021 | 12 | 5 |
| 2022 | 7 | 3 |
| 2023 | 4 | 3 |
| 2024 | 2 | 2 |
| 2025 | 7 | 6 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Laser power monitoring in hard disk drives16 Jun 2026US 12,658,210 B1Avago Technologies International Sales Pte. Limited
- Magnetic disk device and method19 May 2026US 12,633,306 B1Kabushiki Kaisha Toshiba
- Data storage device with jitter-based touchdown detection19 May 2026US 12,633,307 B1Western Digital Technologies, Inc.
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus17 Feb 2026US 12,555,603 B2FUJIFILM Corporation
- Magnetic disk device10 Feb 2026US 12,548,592 B2Kabushiki 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.
- Evaluation method, manufacturing method, and disk device23 Apr 2026US 2026/0112390 A1Kabushiki Kaisha Toshiba
- Data storage device with track pitch determination for mitigating effects of servo pattern distortion2 Oct 2025US 2025/0308552 A1Western Digital Technologies, Inc.
- Magnetic disk device15 May 2025US 2025/0157487 A1Kabushiki Kaisha Toshiba
- Magnetic disk device13 Mar 2025US 2025/0087237 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Disk drive with calibration bursts that are recorded on a spiral and method of recording the same194US 6,091,564 AWestern Digital Corporation · 2000
- Disk drive with efficient coil temperature estimation172US 6,791,785 B1Western Digital Technologies, Inc. · 2004
- Method and apparatus to compensate for servo wedge rotational offset after a head switch162US 6,067,206 AWestern Digital Corporation · 2000
- Disk drive selecting TPI profile by estimating head geometry145US 7,688,540 B1Western Digital Technologies, Inc. · 2010
- Digital servo control system for use in disk drives144US 6,347,018 B1Rodime PLC · 2002