G11B 21/12
Raising and lowering
Official title: Raising and lowering; Back-spacing or forward-spacing along track; Returning to starting position {otherwise than during transducing operation}
G11B21/12 (Raising and lowering) appears on 586 US grants and 330 published applications in this corpus.
Search patents in G11B- Granted patents
- 586
- Published applications
- 330
- Assignees
- 147
- Inventors
- 1,067
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 11 | 0 |
| 1996 | 13 | 0 |
| 1997 | 11 | 0 |
| 1998 | 19 | 0 |
| 1999 | 16 | 0 |
| 2000 | 29 | 0 |
| 2001 | 25 | 8 |
| 2002 | 22 | 21 |
| 2003 | 28 | 11 |
| 2004 | 18 | 18 |
| 2005 | 19 | 37 |
| 2006 | 34 | 28 |
| 2007 | 31 | 54 |
| 2008 | 31 | 23 |
| 2009 | 30 | 17 |
| 2010 | 27 | 27 |
| 2011 | 20 | 12 |
| 2012 | 16 | 7 |
| 2013 | 11 | 4 |
| 2014 | 21 | 9 |
| 2015 | 17 | 5 |
| 2016 | 9 | 3 |
| 2017 | 3 | 0 |
| 2018 | 6 | 1 |
| 2019 | 0 | 2 |
| 2020 | 4 | 2 |
| 2021 | 7 | 5 |
| 2022 | 5 | 6 |
| 2023 | 7 | 11 |
| 2024 | 9 | 8 |
| 2025 | 8 | 8 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of operating hard disk drives, corresponding hard disk drive and processing device25 Aug 2026US 12,718,845 B2STMicroelectronics S,r.l.
- Magnetic disk device having piezoelectric element18 Aug 2026US 12,711,986 B2Kabushiki Kaisha Toshiba
- Method of operating hard disk drive, corresponding control circuit, hard disk drive and processing device28 Jul 2026US 12,694,903 B2STMicroelectronics International N. V.
- Method of operating hard disk drives, corresponding control circuit, hard disk drive and processing device30 Jun 2026US 12,670,931 B2STMicroelectronics International N. V.
- Disk device and head gimbal assembly having a load beam with a varying rail configuration16 Jun 2026US 12,658,203 B2Kabushiki Kaisha Toshiba
- Method of operating hard disk drives, corresponding control circuit, hard disk drive and processing device9 Apr 2026US 2026/0100200 A1STMicroelectronics International N. V.
- Disk device12 Mar 2026US 2026/0073939 A1Kabushiki Kaisha Toshiba
- Capacitive Height Sensing with Variable Step Charge-to-Voltage Converter12 Feb 2026US 2026/0043645 A1Avago Technologies International Sales Pte. Limited
- Disk device and head gimbal assembly27 Nov 2025US 2025/0364007 A1Kabushiki Kaisha Toshiba
- Method of operating hard disk drive, corresponding control circuit, hard disk drive and processing device27 Nov 2025US 2025/0364012 A1STMicroelectronics International N. V.
Most cited
By later US patents
- Disk drive apparatus using dynamic loading/unloading217US 4,933,785 APrairietek Corporation · 1990
- Architecture for 21/2 inch diameter single disk drive185US 5,025,335 AConner Peripherals, Inc. · 1991
- Method of controlling an actuator, and disk apparatus using the same method165US 7,265,929 B2Matsushita Electric Industrial Co., Ltd. · 2007
- Airflow assisted ramp loading and unloading of sliders in hard disk drives156US 6,437,945 B1Read-Rite Corporation · 2002
- Disk drive flushing write cache to a nearest set of reserved tracks during a power failure136US 7,800,856 B1Western Digital Technologies, Inc. · 2010