G11B 20/1889
With discs
Official title: {with discs}
G11B20/1889 (With discs) appears on 240 US grants and 161 published applications in this corpus.
Search patents in G11B- Granted patents
- 240
- Published applications
- 161
- Assignees
- 53
- Inventors
- 414
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 13 | 0 |
| 2001 | 9 | 3 |
| 2002 | 8 | 11 |
| 2003 | 10 | 3 |
| 2004 | 4 | 9 |
| 2005 | 6 | 4 |
| 2006 | 1 | 3 |
| 2007 | 5 | 8 |
| 2008 | 6 | 3 |
| 2009 | 4 | 2 |
| 2010 | 2 | 0 |
| 2011 | 6 | 4 |
| 2012 | 0 | 5 |
| 2013 | 8 | 6 |
| 2014 | 21 | 9 |
| 2015 | 18 | 12 |
| 2016 | 24 | 24 |
| 2017 | 16 | 15 |
| 2018 | 12 | 7 |
| 2019 | 9 | 11 |
| 2020 | 14 | 5 |
| 2021 | 5 | 3 |
| 2022 | 6 | 6 |
| 2023 | 2 | 4 |
| 2024 | 5 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic disk device13 Jan 2026US 12,525,252 B2Kabushiki Kaisha Toshiba
- Method and magnetic disk apparatus1 Jul 2025US 12,347,456 B1Kabushiki Kaisha Toshiba
- Magnetic disk device and method of managing parity4 Mar 2025US 12,243,558 B2Kabushiki Kaisha Toshiba
- Magnetic disk device and method10 Sep 2024US 12,087,326 B1Kabushiki Kaisha Toshiba
- Magnetic disk device9 Jul 2024US 12,033,662 B2Kabushiki Kaisha Toshiba
- Magnetic disk device and data recording method24 Sep 2026US 2026/0290397 A1Kabushiki Kaisha Toshiba
- Magnetic disk device25 Dec 2025US 2025/0391426 A1Kabushiki Kaisha Toshiba
- Magnetic disk device and method of managing parity26 Sep 2024US 2024/0321314 A1Kabushiki Kaisha Toshiba
- Magnetic disk device and method19 Sep 2024US 2024/0312485 A1Kabushiki Kaisha Toshiba
- Overlapping Processing of Data Tracks28 Sep 2023US 2023/0307000 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Virtual addressing of optical storage media as magnetic tape equivalents575US 5,455,926 AData/Ware Development, Inc. · 1995
- Sector architecture for fixed block disk drive234US 5,523,903 AInternational Business Machines Corporation · 1996
- Information recording medium, and apparatus and method for recording information on information recording medium207US 7,945,143 B2Panasonic Corporation · 2011
- Optimizing order of error recovery steps in a disk drive178US 7,451,344 B1Western Digital Technologies, Inc. · 2008
- Disk drive employing off-line scan to collect selection-control data for subsequently deciding whether to verify after write175US 6,289,484 B1Western Digital Technologies, Inc. · 2001