G11B 2020/1282
In embedded servo fields
Official title: {in embedded servo fields}
G11B2020/1282 (In embedded servo fields) appears on 136 US grants and 27 published applications in this corpus.
Search patents in G11B- Granted patents
- 136
- Published applications
- 27
- Assignees
- 54
- Inventors
- 255
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 3 |
| 2003 | 7 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 2 |
| 2006 | 4 | 2 |
| 2007 | 1 | 3 |
| 2008 | 4 | 2 |
| 2009 | 2 | 2 |
| 2010 | 4 | 2 |
| 2011 | 4 | 4 |
| 2012 | 5 | 1 |
| 2013 | 4 | 1 |
| 2014 | 3 | 0 |
| 2015 | 2 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Multi-revolution hard disk drives with reduced servo overhead2 Dec 2025US 12,488,807 B2Seagate Technology LLC
- Magnetic disc apparatus27 Feb 2018US 9,905,256 B1Kabushiki Kaisha Toshiba
- Magnetic disk device and correction method of head position24 Oct 2017US 9,799,360 B2Kabushiki Kaisha Toshiba
- Information storage device with multiple-use fields in servo pattern5 Jul 2016US 9,384,779 B2HGST Netherlands B. V.
- Method and system for removing interference caused by servo data from user data22 Sep 2015US 9,143,168 B1Marvell International Ltd.
- Multi-revolution hard disk drives with reduced servo overhead27 Nov 2025US 2025/0364008 A1Seagate Technology LLC
- Magnetic disk device and correction method of head position14 Sep 2017US 2017/0263275 A1Kabushiki Kaisha Toshiba
- Systems and Methods for Inter-Track Alignment3 Jan 2013US 2013/0003214 A1LSI Corporation
- Information reproduction apparatus and information reproduction method2 Aug 2012US 2012/0198304 A1Kabushiki Kaisha Toshiba
- Method and apparatus for measuring a signal, method of testing with a spinstand, a method of writing a test data pattern and a spinstand22 Sep 2011US 2011/0228660 A1Seagate Technology LLC
Most cited
By later US patents
- 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
- Disk drive employing state variable trap registers for providing stored servo and user data state variables to sampled-data channel175US 6,178,056 B1Western Digital Corporation · 2001