G11B 5/5578
Multiple actuators addressing the same disk
Official title: {Multiple actuators addressing the same disk, e.g. to improve data rate or access rate}
G11B5/5578 (Multiple actuators addressing the same disk) appears on 120 US grants and 72 published applications in this corpus.
Search patents in G11B- Granted patents
- 120
- Published applications
- 72
- Assignees
- 30
- Inventors
- 188
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 3 |
| 2008 | 3 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 3 | 0 |
| 2015 | 2 | 2 |
| 2016 | 2 | 5 |
| 2017 | 6 | 3 |
| 2018 | 8 | 5 |
| 2019 | 14 | 5 |
| 2020 | 15 | 9 |
| 2021 | 14 | 9 |
| 2022 | 10 | 4 |
| 2023 | 5 | 5 |
| 2024 | 4 | 7 |
| 2025 | 4 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hard disk drives with piezoelectric ultrasonic motor31 Mar 2026US 12,592,252 B2Seagate Technology LLC
- Disk drive arm actuator with piezoelectric ultrasonic motor24 Feb 2026US 12,562,189 B2Seagate Technology LLC
- Multi-actuator device with shared read channel17 Feb 2026US 12,554,411 B1Seagate Technology LLC
- Magnetic disk drive16 Sep 2025US 12,417,783 B1Kabushiki Kaisha Toshiba
- Data storage device with flexible logical tracks and radius-independent data rate10 Jun 2025US 12,327,577 B2Western Digital Technologies, Inc.
- Magnetic disk device and signal synchronization method17 Sep 2026US 2026/0279394 A1Kabushiki Kaisha Toshiba
- Multi-actuator device with shared read channel5 Mar 2026US 2026/0064278 A1Seagate Technology LLC
- Disk drive arm actuator with piezoelectric ultrasonic motor1 Jan 2026US 2026/0004807 A1Seagate Technology LLC
- Magnetic disk drive18 Sep 2025US 2025/0292794 A1Kabushiki Kaisha Toshiba
- Data storage device with flexible logical tracks and radius-independent data rate6 Mar 2025US 2025/0078867 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Multiple independently positionable recording-reading head disk system86US 4,972,396 AHoneywell Inc. · 1990
- Multiple actuator disk drive70US 5,223,993 AConner Peripherals, Inc. · 1993
- Multiple zone multiple disk video recording system68US 4,577,240 ADigital Engineering, Ltd. · 1986
- Disk drive accounting for sinusoidal offset between heads when executing a rotational position optimization algorithm62US 8,824,262 B1Western Digital Technologies, Inc. · 2014
- Hard disk drive controller employing a plurality of microprocessors60US 5,610,808 AConner Peripherals, Inc. · 1997