G11B 20/1258
Where blocks are arranged within multiple radial zones
Official title: {where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs}
G11B20/1258 (Where blocks are arranged within multiple radial zones) appears on 708 US grants and 255 published applications in this corpus.
Search patents in G11B- Granted patents
- 708
- Published applications
- 255
- Assignees
- 118
- Inventors
- 916
- Latest grant
- 9 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 10 | 0 |
| 1993 | 25 | 0 |
| 1994 | 30 | 0 |
| 1995 | 37 | 0 |
| 1996 | 44 | 0 |
| 1997 | 45 | 0 |
| 1998 | 61 | 0 |
| 1999 | 55 | 0 |
| 2000 | 47 | 0 |
| 2001 | 38 | 11 |
| 2002 | 27 | 27 |
| 2003 | 29 | 18 |
| 2004 | 25 | 32 |
| 2005 | 13 | 28 |
| 2006 | 28 | 32 |
| 2007 | 26 | 23 |
| 2008 | 28 | 20 |
| 2009 | 16 | 12 |
| 2010 | 16 | 6 |
| 2011 | 17 | 6 |
| 2012 | 9 | 5 |
| 2013 | 5 | 7 |
| 2014 | 6 | 0 |
| 2015 | 5 | 2 |
| 2016 | 4 | 6 |
| 2017 | 2 | 5 |
| 2018 | 6 | 1 |
| 2019 | 7 | 4 |
| 2020 | 3 | 2 |
| 2021 | 10 | 2 |
| 2022 | 1 | 4 |
| 2023 | 4 | 2 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Magnetic disk device9 Jul 2024US 12,033,662 B2Kabushiki Kaisha Toshiba
- Composite data recovery procedure14 Nov 2023US 11,817,124 B2Seagate Technology LLC
- Matrix super parity for data storage15 Aug 2023US 11,726,710 B2Seagate Technology LLC
- Estimating recording head fly height using machine learning9 May 2023US 11,646,057 B2Seagate Technology LLC
- Read offset calibration for error recovery17 Jan 2023US 11,557,319 B1Seagate Technology LLC
- Composite data recovery procedure8 Jun 2023US 2023/0178109 A1Seagate Technology LLC
- Estimating recording head fly height using machine learning2 Mar 2023US 2023/0062615 A1Seagate Technology LLC
- Magnetic disk device and manufacturing method thereof22 Sep 2022US 2022/0301587 A1Kabushiki Kaisha Toshiba
- Magnetic disk device22 Sep 2022US 2022/0301590 A1Kabushiki Kaisha Toshiba
- Matrix super parity for data storage23 Jun 2022US 2022/0197554 A1Seagate Technology LLC
Most cited
By later US patents
- PRML sampled data channel synchronous servo detector294US 5,384,671 AQuantum Corporation · 1995
- 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
- Embedded servo banded format for magnetic disks for use with a data processing system209US 5,278,703 ADigital Equipment Corporation · 1994