G11B 19/2081
Emergency power-down
Official title: {emergency power-down}
G11B19/2081 (Emergency power-down) appears on 39 US grants and 28 published applications in this corpus.
Search patents in G11B- Granted patents
- 39
- Published applications
- 28
- Assignees
- 16
- Inventors
- 68
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 1 |
| 2014 | 5 | 4 |
| 2015 | 6 | 2 |
| 2016 | 6 | 3 |
| 2017 | 4 | 0 |
| 2018 | 2 | 3 |
| 2019 | 1 | 2 |
| 2020 | 3 | 2 |
| 2021 | 4 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Magnetic disk apparatus and control method16 Sep 2025US 12,417,037 B1Kabushiki Kaisha Toshiba
- Magnetic disk device and method4 Feb 2025US 12,217,769 B1Kabushiki Kaisha Toshiba
- Method of operating hard disk drives, corresponding control circuit, hard disk drive and processing device15 Oct 2024US 12,119,024 B2STMicroelectronics S,r.l.
- Dual spindle motors and dual spindle motor control for data storage21 Nov 2023US 11,823,710 B2Western Digital Technologies, Inc.
- Magnetic disk device and data protection method thereof7 Dec 2021US 11,195,547 B2Kabushiki Kaisha Toshiba
- Magnetic disk apparatus and control method11 Sep 2025US 2025/0284406 A1Kabushiki Kaisha Toshiba
- Method of operating hard disk drives, corresponding control circuit, hard disk drive and processing device21 Mar 2024US 2024/0096371 A1STMicroelectronics S,r.l.
- Dual spindle motors and dual spindle motor control for data storage22 Feb 2024US 2024/0062785 A1Western Digital Technologies, Inc.
- Dual spindle motors and dual spindle motor control for data storage24 Aug 2023US 2023/0267960 A1Western Digital Technologies, Inc.
- Magnetic disk device and data protection method thereof4 Mar 2021US 2021/0065737 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Systems and methods for data throttling during disk drive power down111US 8,630,054 B2Western Digital Technologies, Inc. · 2014
- Automatic head retract system for disk drive73US 4,786,995 APeripheral Technology, Inc. · 1988
- Magnetic disk device having coupling observers for reducing coupling issues between independently running multi-actuators10US 10,741,210 B1Seagate Technology LLC · 2020
- Selectively depowering portion of a controller to facilitate hard disk drive safeguard operations10US 8,924,641 B2Seagate Technology LLC · 2014
- Disk drive system employing effective disk surface stabilization mechanism7US 7,852,723 B2Ricoh Company, Ltd. · 2010