G11B 5/59633
Servo formatting
Official title: {Servo formatting (G11B5/59627, G11B5/59677, G11B5/59683, G11B5/59688 take precedence)}
G11B5/59633 (Servo formatting) appears on 1,887 US grants and 939 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,887
- Published applications
- 939
- Assignees
- 202
- Inventors
- 2,134
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 10 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 14 | 0 |
| 1990 | 16 | 0 |
| 1991 | 15 | 0 |
| 1992 | 19 | 0 |
| 1993 | 16 | 0 |
| 1994 | 16 | 0 |
| 1995 | 21 | 0 |
| 1996 | 27 | 0 |
| 1997 | 36 | 0 |
| 1998 | 62 | 0 |
| 1999 | 67 | 0 |
| 2000 | 105 | 0 |
| 2001 | 75 | 22 |
| 2002 | 69 | 73 |
| 2003 | 67 | 59 |
| 2004 | 78 | 78 |
| 2005 | 84 | 97 |
| 2006 | 143 | 93 |
| 2007 | 98 | 72 |
| 2008 | 69 | 53 |
| 2009 | 81 | 76 |
| 2010 | 86 | 56 |
| 2011 | 70 | 31 |
| 2012 | 48 | 28 |
| 2013 | 50 | 27 |
| 2014 | 77 | 12 |
| 2015 | 54 | 21 |
| 2016 | 31 | 21 |
| 2017 | 29 | 11 |
| 2018 | 26 | 14 |
| 2019 | 29 | 11 |
| 2020 | 21 | 16 |
| 2021 | 21 | 10 |
| 2022 | 19 | 13 |
| 2023 | 15 | 10 |
| 2024 | 24 | 17 |
| 2025 | 19 | 7 |
| 2026 | 11 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G11B 5/59655Sector, sample or burst servo format577
- G11B 5/59666Self servo writing258
- G11B 5/59661Spiral servo format192
- G11B 5/59644Acquisition or selection of servo format from a system reference185
- G11B 5/59638Servo formatting apparatuses183
- G11B 5/5965Embedded servo format140
- G11B 5/59672Servo re-writing31
Recent patents
- Data storage device with BiCMOS impedance-matched amplifier with transducer-bias6 Oct 2026US 12,755,754 B1Western Digital Technologies, Inc.
- Burst pattern track-to-track phase adjustment in a data storage device29 Sep 2026US 12,749,504 B1Western Digital Technologies, Inc.
- Data storage device with asynchronous position error signal demodulation with split burst servo patterns18 Aug 2026US 12,711,990 B2Western Digital Technologies, Inc.
- Data storage device with spiral write mode hop mitigation7 Jul 2026US 12,676,167 B1Western Digital Technologies, Inc.
- Data storage device comprising dual channel preamp circuit21 Apr 2026US RE50,873 E1Western Digital Technologies, Inc.
- Burst Pattern Track-to-Track Phase Adjustment in a Data Storage Device1 Oct 2026US 2026/0301766 A1Western Digital Technologies, Inc.
- Laser current calibration under id crash stop compression area for blank disk self-servo write10 Sep 2026US 2026/0268931 A1
- Laser current calibration under id crash stop compression area for blank disk self-servo write10 Sep 2026US 2026/0268932 A1
- Data storage device comprising dual channel preamp circuit16 Jul 2026US 2026/0204287 A1Western Digital Technologies, Inc.
- Data storage device with spiral write mode hop mitigation9 Jul 2026US 2026/0196244 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- System for self-servowriting a disk drive251US 5,668,679 AQuantum Corporation · 1997
- High capacity submicro-winchester fixed disk drive235US 5,255,136 AQuantum Corporation · 1993
- Sector architecture for fixed block disk drive234US 5,523,903 AInternational Business Machines Corporation · 1996
- Disk drive employing read channel IC with common port for data and servo233US 6,278,568 B1Western Digital Corporation · 2001
- Disk drive employing read error tolerant sync mark detection216US 6,411,452 B1Western Digital Technologies, Inc. · 2002