G11B 5/5508
Control circuits therefor
Official title: {Control circuits therefor (G11B5/5513 takes precedence)}
G11B5/5508 (Control circuits therefor) appears on 184 US grants and 52 published applications in this corpus.
Search patents in G11B- Granted patents
- 184
- Published applications
- 52
- Assignees
- 52
- Inventors
- 261
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 20 | 0 |
| 2000 | 11 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 0 |
| 2004 | 2 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 3 | 4 |
| 2016 | 4 | 5 |
| 2017 | 5 | 3 |
| 2018 | 5 | 2 |
| 2019 | 4 | 4 |
| 2020 | 11 | 10 |
| 2021 | 12 | 3 |
| 2022 | 5 | 1 |
| 2023 | 3 | 4 |
| 2024 | 4 | 4 |
| 2025 | 4 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading method19 Aug 2025US 12,394,434 B2FUJIFILM Corporation
- Repositioning operation on a tape medium based on dataset information1 Jul 2025US 12,347,469 B1International Business Machines Corporation
- Tape drive write across write error4 Feb 2025US 12,217,776 B1International Business Machines Corporation
- Recalling data from tape7 Jan 2025US 12,190,910 B1International Business Machines Corporation
- Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading method20 Aug 2024US 12,068,011 B2FUJIFILM Corporation
- Beginning of wrap data set reading and writing for tape drives26 Mar 2026US 2026/0088047 A1International Business Machines Corporation
- Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading method31 Oct 2024US 2024/0363142 A1FUJIFILM Corporation
- Magnetic disk device and write processing method26 Sep 2024US 2024/0321300 A1
- Tape drive reel including damping to reduce track following errors14 Mar 2024US 2024/0087599 A1International Business Machines Corporation
- Tape reel, magnetic tape cartridge, and magnetic tape drive4 Jan 2024US 2024/0005954 A1FUJIFILM Corporation
Most cited
By later US patents
- Servo method and apparatus for very high track density magnetic recording by adjusting head position based on servo information read from adjacent track102US 5,371,638 ADigital Equipment Corporation · 1994
- Servo and data format for magnetic tape having plural spaced-apart servo areas interleaved with data track areas having serpentine track scanning using any one of a plurality of number of concurrently accessed tracks79US 5,432,652 AInternational Business Machines Corporation · 1995
- Linear tape write servo using embedded azimuth servo blocks74US 5,523,904 AQuantum Corporation · 1996
- Dynamic control of magnetic tape drive74US 5,892,633 AExabyte Corporation · 1999
- Tracking control device for magnetic recording/reproducing apparatus69US 5,262,908 ASharp Kabushiki Kaisha · 1993