G11B 5/488
Disposition of heads
Official title: {Disposition of heads (G11B5/49, G11B5/52 take precedence)}
G11B5/488 (Disposition of heads) appears on 1,347 US grants and 514 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,347
- Published applications
- 514
- Assignees
- 235
- Inventors
- 1,984
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 8 | 0 |
| 1983 | 10 | 0 |
| 1984 | 12 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 18 | 0 |
| 1988 | 14 | 0 |
| 1989 | 15 | 0 |
| 1990 | 38 | 0 |
| 1991 | 29 | 0 |
| 1992 | 19 | 0 |
| 1993 | 27 | 0 |
| 1994 | 34 | 0 |
| 1995 | 30 | 0 |
| 1996 | 31 | 0 |
| 1997 | 42 | 0 |
| 1998 | 81 | 0 |
| 1999 | 97 | 0 |
| 2000 | 76 | 0 |
| 2001 | 67 | 28 |
| 2002 | 49 | 42 |
| 2003 | 45 | 37 |
| 2004 | 47 | 51 |
| 2005 | 30 | 35 |
| 2006 | 40 | 17 |
| 2007 | 22 | 20 |
| 2008 | 16 | 12 |
| 2009 | 15 | 7 |
| 2010 | 7 | 5 |
| 2011 | 9 | 7 |
| 2012 | 9 | 4 |
| 2013 | 9 | 9 |
| 2014 | 30 | 21 |
| 2015 | 55 | 43 |
| 2016 | 54 | 32 |
| 2017 | 46 | 19 |
| 2018 | 31 | 26 |
| 2019 | 32 | 26 |
| 2020 | 34 | 13 |
| 2021 | 18 | 12 |
| 2022 | 14 | 13 |
| 2023 | 13 | 10 |
| 2024 | 12 | 7 |
| 2025 | 11 | 13 |
| 2026 | 11 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic disk device having piezoelectric element18 Aug 2026US 12,711,986 B2Kabushiki Kaisha Toshiba
- Multichannel linear magnetic tape drive having dual tilting actuators4 Aug 2026US 12,700,426 B1Western Digital Technologies, Inc.
- Tape head assembly with piezoelectric actuator14 Jul 2026US 12,682,925 B2Western Digital Technologies, Inc.
- Servo write head for writing servo patterns having opposite- polarity bars16 Jun 2026US 12,658,206 B2Western Digital Technologies, Inc.
- Non-contact tape head16 Jun 2026US 12,658,208 B2Western Digital Technologies, Inc.
- Orthogonal Reading Using SOT-Based Readers or Mixed Readers in Vector Magnetic Recording24 Sep 2026US 2026/0290389 A1Western Digital Technologies, Inc.
- Servo Write Head For Writing Servo Patterns Having Opposite-Polarity Bars17 Sep 2026US 2026/0279393 A1Western Digital Technologies, Inc.
- Non-Contact Tape Head11 Jun 2026US 2026/0162676 A1Western Digital Technologies, Inc.
- Head driving device configured to move a head member relative to tape as a recording medium and configured to stably hold the head member26 Feb 2026US 2026/0057907 A1NHK Spring Co., Ltd.
- Multi-Format Data Retrieval From Legacy Tapes22 Jan 2026US 2026/0024548 A1ChannelScience, LLC
Most cited
By later US patents
- Electronic device using magnetic components385US 5,695,864 AInternational Business Machines Corporation · 1997
- Read/write head with shifted waveguide218US 6,016,290 ARead-Rite Corporation · 2000
- Laser mounting for a thermally assisted GMR head203US 6,404,706 B1Read-Rite Corporation · 2002
- Conformal high moment side shield seed layer for perpendicular magnetic recording writer165US 8,724,259 B1Western Digital (Fremont), LLC · 2014
- Tape head with support bars162US 6,611,398 B1Quantum Corporation · 2003