G11B 19/047
Recovery from power failure
Official title: {Recovery from power failure}
G11B19/047 (Recovery from power failure) appears on 49 US grants and 48 published applications in this corpus.
Search patents in G11B- Granted patents
- 49
- Published applications
- 48
- Assignees
- 36
- Inventors
- 116
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 1 |
| 2006 | 2 | 4 |
| 2007 | 3 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 3 |
| 2010 | 2 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 4 |
| 2013 | 4 | 4 |
| 2014 | 3 | 4 |
| 2015 | 8 | 4 |
| 2016 | 3 | 0 |
| 2017 | 1 | 1 |
| 2018 | 5 | 2 |
| 2019 | 1 | 1 |
| 2020 | 4 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic disk drive12 May 2026US 12,625,776 B2Kabushiki Kaisha Toshiba
- Magnetic disk apparatus and control method16 Sep 2025US 12,417,037 B1Kabushiki Kaisha Toshiba
- Magnetic disk device and write method13 May 2025US 12,300,278 B2Kabushiki Kaisha Toshiba
- Data storage device with accelerated post-emergency-power-off recovery process24 Dec 2024US 12,176,011 B1Western Digital Technologies, Inc.
- Method of operating hard disk drives and corresponding control circuit3 Sep 2024US 12,080,327 B2STMicroelectronics S,r.l.
- Magnetic disk drive25 Sep 2025US 2025/0298698 A1Kabushiki Kaisha Toshiba
- Magnetic disk apparatus and control method11 Sep 2025US 2025/0284406 A1Kabushiki Kaisha Toshiba
- Magnetic disk device and write method20 Feb 2025US 2025/0061919 A1Kabushiki Kaisha Toshiba
- Data storage device with accelerated post-emergency-power-off recovery process26 Dec 2024US 2024/0428819 A1Western Digital Technologies, Inc.
- Method of operating hard disk drives and corresponding control circuit1 Feb 2024US 2024/0038263 A1STMicroelectronics S,r.l.
Most cited
By later US patents
- Disk drive flushing write cache to a nearest set of reserved tracks during a power failure136US 7,800,856 B1Western Digital Technologies, Inc. · 2010
- Servo writer with retract capacitor for generating a VCM driving current during a power failure31US 7,974,038 B2Western Digital Technologies, Inc. · 2011
- Disk storage system with fault tolerant media maintenance17US 5,421,003 AInternational Business Machines Corporation · 1995
- Disk apparatus, head retracting method and head actuator control circuit12US 7,072,135 B2Fujitsu Limited · 2006
- Power loss data block marking11US 10,643,668 B1Seagate Technology LLC · 2020