G11B 5/02
Recording, reproducing, or erasing methods
Official title: Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
G11B5/02 (Recording, reproducing, or erasing methods) appears on 3,979 US grants and 1,958 published applications in this corpus.
Search patents in G11B- Granted patents
- 3,979
- Published applications
- 1,958
- Assignees
- 549
- Inventors
- 4,918
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 20 | 0 |
| 1978 | 12 | 0 |
| 1979 | 14 | 0 |
| 1980 | 12 | 0 |
| 1981 | 33 | 0 |
| 1982 | 33 | 0 |
| 1983 | 27 | 0 |
| 1984 | 41 | 0 |
| 1985 | 42 | 0 |
| 1986 | 33 | 0 |
| 1987 | 45 | 0 |
| 1988 | 37 | 0 |
| 1989 | 52 | 0 |
| 1990 | 41 | 0 |
| 1991 | 37 | 0 |
| 1992 | 47 | 0 |
| 1993 | 49 | 0 |
| 1994 | 77 | 0 |
| 1995 | 90 | 0 |
| 1996 | 78 | 0 |
| 1997 | 85 | 0 |
| 1998 | 151 | 0 |
| 1999 | 143 | 0 |
| 2000 | 173 | 0 |
| 2001 | 162 | 52 |
| 2002 | 138 | 115 |
| 2003 | 117 | 135 |
| 2004 | 134 | 113 |
| 2005 | 103 | 131 |
| 2006 | 122 | 85 |
| 2007 | 94 | 109 |
| 2008 | 84 | 103 |
| 2009 | 83 | 92 |
| 2010 | 115 | 118 |
| 2011 | 139 | 78 |
| 2012 | 106 | 80 |
| 2013 | 98 | 86 |
| 2014 | 176 | 83 |
| 2015 | 167 | 102 |
| 2016 | 135 | 85 |
| 2017 | 133 | 57 |
| 2018 | 74 | 25 |
| 2019 | 60 | 42 |
| 2020 | 71 | 50 |
| 2021 | 58 | 42 |
| 2022 | 47 | 33 |
| 2023 | 42 | 28 |
| 2024 | 41 | 44 |
| 2025 | 46 | 28 |
| 2026 | 40 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Data storage device with BiCMOS impedance-matched amplifier with transducer-bias6 Oct 2026US 12,755,754 B1Western Digital Technologies, Inc.
- Preamplifier for a writer of a hard disk drive with fast rise time6 Oct 2026US 12,755,760 B1Marvell Asia Pte Ltd
- Magnetic disk device and method22 Sep 2026US 12,744,054 B2Kabushiki Kaisha Toshiba
- Data storage device with assistive bursts in servo sectors15 Sep 2026US 12,738,294 B2Western Digital Technologies, Inc.
- Magnetic recording tape medium with conductive particle configuration and cartridge8 Sep 2026US 12,731,609 B2Sony Group Corporation
- Magnetic recording and reproduction device and control method of the same24 Sep 2026US 2026/0290386 A1Kabushiki Kaisha Toshiba
- Magnetic recording device10 Sep 2026US 2026/0268928 A1Kabushiki Kaisha Toshiba
- Laser current calibration under id crash stop compression area for blank disk self-servo write10 Sep 2026US 2026/0268931 A1
- Magnetic disk device and method20 Aug 2026US 2026/0245581 A1Kabushiki Kaisha Toshiba
- Magnetic disk device and method of recording data20 Aug 2026US 2026/0245591 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Class AB H-bridge using current sensing MOSFETs1,035US 6,445,530 B1Seagate Technology LLC · 2002
- Heterogeneous display elements and methods for their fabrication562US 6,241,921 B1Massachusetts Institute of Technology · 2001
- Disk drive employing a sync mark detector comprising a matched filter and a dual polarity correlator217US 6,603,622 B1Western Digital Technologies, Inc. · 2003
- Waveguide apparatus for coupling a high data rate signal to and from a rotary head scanner203US 4,717,974 AEastman Kodak Company · 1988
- Disk drive having a high performance access mode and a lower performance archive mode190US 7,599,139 B1Western Digital Technologies, Inc. · 2009