G11B 5/581
Maintaining desired contact or spacing by direct interaction of forces generated between
Official title: {maintaining desired contact or spacing by direct interaction of forces generated between heads or supports thereof and record carriers or supports thereof, e.g. attraction-repulsion interactions}
G11B5/581 (Maintaining desired contact or spacing by direct interaction of forces generated between) appears on 109 US grants and 84 published applications in this corpus.
Search patents in G11B- Granted patents
- 109
- Published applications
- 84
- Assignees
- 41
- Inventors
- 236
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 8 |
| 2003 | 1 | 7 |
| 2004 | 6 | 2 |
| 2005 | 7 | 8 |
| 2006 | 6 | 3 |
| 2007 | 4 | 8 |
| 2008 | 5 | 7 |
| 2009 | 8 | 12 |
| 2010 | 5 | 4 |
| 2011 | 3 | 2 |
| 2012 | 4 | 0 |
| 2013 | 2 | 1 |
| 2014 | 3 | 2 |
| 2015 | 4 | 2 |
| 2016 | 2 | 2 |
| 2017 | 3 | 0 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 3 | 1 |
| 2021 | 5 | 4 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 3 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Magnetic head with multilayer configuration between magnetic poles and magnetic recording device12 Aug 2025US 12,387,748 B2Kabushiki Kaisha Toshiba
- Noncontact communication medium, magnetic tape cartridge, noncontact communication system, operation method of noncontact communication medium, and program22 Jul 2025US 12,367,902 B2FUJIFILM Corporation
- Magnetic disk device having heater to adjust spacing between magnetic disk and magnetic head18 Feb 2025US 12,230,305 B2Kabushiki Kaisha Toshiba
- Tape drive with head-gimbal assembly and contact plate23 May 2023US 11,657,842 B2Western Digital Technologies, Inc.
- Magnetic tape having characterized magnetic layer, magnetic tape cartridge, and magnetic tape apparatus22 Nov 2022US 11,508,408 B2FUJIFILM Corporation
- Noncontact communication medium, magnetic tape cartridge, noncontact communication system, operation method of noncontact communication medium, and program20 Mar 2025US 2025/0095677 A1FUJIFILM Corporation
- Magnetic disk device and method of controlling the same19 Sep 2024US 2024/0312479 A1Kabushiki Kaisha Toshiba
- Magnetic head and magnetic recording device11 Jul 2024US 2024/0233755 A9Kabushiki Kaisha Toshiba
- Magnetic head and magnetic recording device25 Apr 2024US 2024/0135962 A1Kabushiki Kaisha Toshiba
- Tape drive with head-gimbal assembly and contact plate30 Jun 2022US 2022/0208224 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Tape head having sensors proximate to an edge113US 9,837,104 B1International Business Machines Corporation · 2017
- Contact detection and calibration for electrostatic fly height control in a disc drive79US 6,700,724 B2Seagate Technology LLC · 2004
- Magnetic disk drive72US 6,359,746 B1Kabushiki Kaisha Toshiba · 2002
- Disk drive including a disk plate overlapping a disk spacer in a circumferential disk spacer opening59US 7,085,098 B1Western Digital Technologies, Inc. · 2006
- Magnetic head heating element in a disk drive43US 6,963,464 B2Hitachi Global Storage Technologies Japan, Ltd. · 2005