G11B 5/012
Recording on, or reproducing or erasing from, magnetic disks
Official title: Recording on, or reproducing or erasing from, magnetic disks (G11B17/00, G11B19/00 take precedence)
G11B5/012 (Recording on, or reproducing or erasing from, magnetic disks) appears on 3,564 US grants and 1,785 published applications in this corpus.
Search patents in G11B- Granted patents
- 3,564
- Published applications
- 1,785
- Assignees
- 387
- Inventors
- 4,502
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 11 | 0 |
| 1982 | 10 | 0 |
| 1983 | 10 | 0 |
| 1984 | 11 | 0 |
| 1985 | 19 | 0 |
| 1986 | 25 | 0 |
| 1987 | 21 | 0 |
| 1988 | 27 | 0 |
| 1989 | 31 | 0 |
| 1990 | 23 | 0 |
| 1991 | 22 | 0 |
| 1992 | 19 | 0 |
| 1993 | 25 | 0 |
| 1994 | 25 | 0 |
| 1995 | 38 | 0 |
| 1996 | 45 | 0 |
| 1997 | 72 | 0 |
| 1998 | 146 | 0 |
| 1999 | 168 | 0 |
| 2000 | 250 | 0 |
| 2001 | 223 | 78 |
| 2002 | 207 | 224 |
| 2003 | 205 | 221 |
| 2004 | 237 | 193 |
| 2005 | 155 | 149 |
| 2006 | 165 | 61 |
| 2007 | 98 | 47 |
| 2008 | 56 | 28 |
| 2009 | 44 | 30 |
| 2010 | 38 | 22 |
| 2011 | 38 | 29 |
| 2012 | 43 | 51 |
| 2013 | 46 | 55 |
| 2014 | 120 | 49 |
| 2015 | 115 | 57 |
| 2016 | 95 | 62 |
| 2017 | 106 | 55 |
| 2018 | 89 | 36 |
| 2019 | 84 | 50 |
| 2020 | 93 | 61 |
| 2021 | 53 | 42 |
| 2022 | 66 | 52 |
| 2023 | 57 | 37 |
| 2024 | 46 | 39 |
| 2025 | 46 | 29 |
| 2026 | 27 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Disk device and manufacturing method for disk device6 Oct 2026US 12,755,753 B2Kabushiki Kaisha Toshiba
- Preamplifier for a writer of a hard disk drive with fast rise time6 Oct 2026US 12,755,760 B1Marvell Asia Pte Ltd
- Anticipatory track switching microactuator track switch to enable track profile interpolation and control15 Sep 2026US 12,738,295 B1Seagate Technology LLC
- Optical signal transmission in a hard disk drive25 Aug 2026US 12,718,840 B2Seagate Technology LLC
- Magnetic disk device and method18 Aug 2026US 12,711,984 B2Kabushiki Kaisha Toshiba
- Sector refresh evaluation for magnetic data storage disks1 Oct 2026US 2026/0301764 A1Western Digital Technologies, Inc.
- Magnetic disk device and write processing method24 Sep 2026US 2026/0290390 A1Kabushiki Kaisha Toshiba
- Magnetic recording device24 Sep 2026US 2026/0290396 A1Kabushiki Kaisha Toshiba
- Magnetic disk device and method for controlling magnetic disk device10 Sep 2026US 2026/0268936 A1Kabushiki Kaisha Toshiba
- Magnetic recording device and method for controlling magnetic recording device20 Aug 2026US 2026/0245580 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Electronic device using magnetic components385US 5,695,864 AInternational Business Machines Corporation · 1997
- Disk drive memory271US 4,989,206 AStorage Technology Corporation · 1991
- Magnetoresistive spin valve sensor with improved pinned ferromagnetic layer and magnetic recording system using the sensor249US 5,465,185 AInternational Business Machines Corporation · 1995
- Disk drive memory228US 5,077,736 AStorage Technology Corporation · 1991
- Read/write head with shifted waveguide218US 6,016,290 ARead-Rite Corporation · 2000