G11B 21/10
Track finding or aligning by moving the head
Official title: Track finding or aligning by moving the head {; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following (characterised by the track access method G11B21/08)}
G11B21/10 (Track finding or aligning by moving the head) appears on 785 US grants and 201 published applications in this corpus.
Search patents in G11B- Granted patents
- 785
- Published applications
- 201
- Assignees
- 160
- Inventors
- 1,171
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 10 | 0 |
| 1982 | 14 | 0 |
| 1983 | 17 | 0 |
| 1984 | 18 | 0 |
| 1985 | 28 | 0 |
| 1986 | 23 | 0 |
| 1987 | 15 | 0 |
| 1988 | 17 | 0 |
| 1989 | 15 | 0 |
| 1990 | 16 | 0 |
| 1991 | 17 | 0 |
| 1992 | 14 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 11 | 0 |
| 1996 | 18 | 0 |
| 1997 | 26 | 0 |
| 1998 | 47 | 0 |
| 1999 | 66 | 0 |
| 2000 | 74 | 0 |
| 2001 | 45 | 17 |
| 2002 | 30 | 24 |
| 2003 | 29 | 18 |
| 2004 | 32 | 14 |
| 2005 | 15 | 10 |
| 2006 | 21 | 5 |
| 2007 | 7 | 3 |
| 2008 | 6 | 3 |
| 2009 | 5 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 4 |
| 2013 | 5 | 9 |
| 2014 | 8 | 6 |
| 2015 | 3 | 0 |
| 2016 | 5 | 2 |
| 2017 | 3 | 4 |
| 2018 | 8 | 3 |
| 2019 | 9 | 5 |
| 2020 | 12 | 3 |
| 2021 | 4 | 1 |
| 2022 | 10 | 10 |
| 2023 | 16 | 20 |
| 2024 | 13 | 15 |
| 2025 | 12 | 12 |
| 2026 | 9 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic recording tape medium with conductive particle configuration and cartridge8 Sep 2026US 12,731,609 B2Sony Group Corporation
- Data storage device with spiral write mode hop mitigation7 Jul 2026US 12,676,167 B1Western Digital Technologies, Inc.
- Servo pattern recording head, servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, and manufacturing method of magnetic tape9 Jun 2026US 12,651,609 B2FUJIFILM Corporation
- Magnetic tape drive, magnetic tape cartridge, and information management method26 May 2026US 12,640,167 B2FUJIFILM Corporation
- Magnetic tape, magnetic tape cartridge, servo pattern recording device, magnetic tape drive, magnetic tape system, detection device, inspection device, servo pattern recording method, manufacturing method of magnetic tape, detection method, and inspection method12 May 2026US 12,626,721 B2FUJIFILM Corporation
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus27 Aug 2026US 2026/0253611 A1FUJIFILM Corporation
- Magnetic recording medium13 Aug 2026US 2026/0237402 A1Sony Group Corporation
- Magnetic recording medium and cartridge30 Jul 2026US 2026/0221156 A1Sony Group Corporation
- Magnetic recording medium and cartridge30 Jul 2026US 2026/0221157 A1Sony Group Corporation
- Magnetic recording medium and cartridge23 Jul 2026US 2026/0212886 A1Sony Group Corporation
Most cited
By later US patents
- Sector architecture for fixed block disk drive234US 5,523,903 AInternational Business Machines Corporation · 1996
- Method and apparatus for fingerprinting magnetic media206US 5,365,586 AWashington University · 1994
- Servo data decoder for any amplitude dependent servo data encoding scheme196US 4,740,736 AAdvanced Micro Devices, Inc. · 1988
- Disk system with sub-actuators for fine head displacement151US 5,189,578 AHitachi, Ltd. · 1993
- Digital servo control system for use in disk drives144US 6,347,018 B1Rodime PLC · 2002