G11B 5/027
Analogue recording
G11B5/027 (Analogue recording) appears on 537 US grants and 119 published applications in this corpus.
Search patents in G11B- Granted patents
- 537
- Published applications
- 119
- Assignees
- 132
- Inventors
- 888
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 20 | 0 |
| 1982 | 16 | 0 |
| 1983 | 14 | 0 |
| 1984 | 17 | 0 |
| 1985 | 17 | 0 |
| 1986 | 14 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 12 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 15 | 0 |
| 1995 | 26 | 0 |
| 1996 | 11 | 0 |
| 1997 | 21 | 0 |
| 1998 | 22 | 0 |
| 1999 | 31 | 0 |
| 2000 | 23 | 0 |
| 2001 | 29 | 7 |
| 2002 | 19 | 18 |
| 2003 | 19 | 16 |
| 2004 | 15 | 11 |
| 2005 | 11 | 9 |
| 2006 | 7 | 6 |
| 2007 | 9 | 4 |
| 2008 | 4 | 2 |
| 2009 | 6 | 2 |
| 2010 | 3 | 5 |
| 2011 | 8 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 3 |
| 2014 | 6 | 3 |
| 2015 | 6 | 5 |
| 2016 | 8 | 4 |
| 2017 | 4 | 2 |
| 2018 | 2 | 0 |
| 2019 | 2 | 1 |
| 2020 | 4 | 2 |
| 2021 | 0 | 1 |
| 2022 | 2 | 3 |
| 2023 | 4 | 2 |
| 2024 | 10 | 8 |
| 2025 | 2 | 0 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Data storage device with spiral write mode hop mitigation7 Jul 2026US 12,676,167 B1Western Digital Technologies, Inc.
- Handling write commands during a refresh operation in a shingled magnetic recording drive26 May 2026US 12,640,165 B2Kabushiki Kaisha Toshiba
- Dual channel burst gain switching in a data storage device17 Feb 2026US 12,555,605 B2Western Digital Technologies, Inc.
- Energy-assisted magnetic recording data storage device with opportunistic boosted laser pre-biasing1 Jul 2025US 12,347,468 B2Western Digital Technologies, Inc.
- Magnetic head with multilayer configuration between magnetic poles and magnetic recording device20 May 2025US 12,308,051 B2Kabushiki Kaisha Toshiba
- Data storage device with spiral write mode hop mitigation9 Jul 2026US 2026/0196244 A1Western Digital Technologies, Inc.
- Dual Channel Burst Gain Switching in a Data Storage Device12 Feb 2026US 2026/0045276 A1Western Digital Technologies, Inc.
- Handling write commands during a refresh operation in a shingled magnetic recording drive15 Jan 2026US 2026/0018186 A1Kabushiki Kaisha Toshiba
- Managing laser diode cavity thermal transients in hamr disk drives3 Oct 2024US 2024/0332893 A1Western Digital Technologies, Inc.
- Magnetic head with multiple layers and magnetic recording device5 Sep 2024US 2024/0296862 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Disk drive including N-current preamplifier for generating N-independently controlled write currents186US 6,310,740 B1Western Digital Technologies, Inc. · 2001
- Magnetoresistive head with minimal electromigration155US 6,163,426 ARead-Rite Corporation · 2000
- Read/write channel write precompensation system and method using one or more delay clocks89US 5,986,830 ACirrus Logic, Inc. · 1999
- Performance based write current optimization process83US 5,600,500 ASeagate Technology LLC · 1997
- Method and apparatus for secure data storage and manipulation using magnetic media81US 5,625,689 AWashington University · 1997