G11B 5/3929
Disposition of magnetic thin films not used for directly coupling magnetic flux
Official title: {Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding}
G11B5/3929 (Disposition of magnetic thin films not used for directly coupling magnetic flux) appears on 1,341 US grants and 995 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,341
- Published applications
- 995
- Assignees
- 106
- Inventors
- 1,151
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 11 | 0 |
| 1996 | 18 | 0 |
| 1997 | 31 | 0 |
| 1998 | 57 | 0 |
| 1999 | 51 | 0 |
| 2000 | 42 | 0 |
| 2001 | 45 | 14 |
| 2002 | 53 | 57 |
| 2003 | 40 | 60 |
| 2004 | 49 | 70 |
| 2005 | 50 | 99 |
| 2006 | 86 | 115 |
| 2007 | 81 | 84 |
| 2008 | 84 | 70 |
| 2009 | 73 | 64 |
| 2010 | 51 | 37 |
| 2011 | 50 | 25 |
| 2012 | 53 | 37 |
| 2013 | 54 | 20 |
| 2014 | 59 | 52 |
| 2015 | 63 | 51 |
| 2016 | 52 | 23 |
| 2017 | 32 | 20 |
| 2018 | 21 | 14 |
| 2019 | 17 | 16 |
| 2020 | 21 | 12 |
| 2021 | 25 | 12 |
| 2022 | 18 | 10 |
| 2023 | 10 | 5 |
| 2024 | 9 | 11 |
| 2025 | 8 | 12 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Read head with multiple contacts formed underneath the sensor8 Sep 2026US 12,731,606 B2Western Digital Technologies, Inc.
- Magneto-resistive reader utilizing read shields to maintain reference layer magnetization25 Aug 2026US 12,718,839 B2Headway Technologies, Inc.
- Topological insulator based spin torque oscillator reader21 Jul 2026US 12,688,869 B2Western Digital Technologies, Inc.
- Rear soft bias dual free layer sensor with patterned decoupling layer7 Apr 2026US 12,597,437 B2Western Digital Technologies, Inc.
- DFL TDMR middle shield throat height control for improved stability7 Oct 2025US 12,437,780 B2Western Digital Technologies, Inc.
- Dual Free Layer Reader with Rear Soft Bias Design with Improved Soft Bias Stability20 Aug 2026US 2026/0245582 A1Western Digital Technologies, Inc.
- Magnetic recording head having a sensor stack disposed along a stripe-height direction20 Aug 2026US 2026/0245585 A1Seagate Technology LLC
- Magnesium Oxide Seed Layer For High Magnetic Moment Material With Amorphous Or Fine Grain Structure16 Jul 2026US 2026/0204281 A1Headway Technologies, Inc.
- Adaptive Bias Control for Magnetic Recording Head30 Apr 2026US 2026/0120716 A1Headway Technologies, Inc.
- Magnetic head and magnetic recording device16 Apr 2026US 2026/0105931 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Method and system for reducing assymetry in a spin valve having a synthetic pinned layer214US 6,447,935 B1Read-Rite Corporation · 2002
- System for biasing a synthetic free layer in a magnetoresistance sensor207US 6,201,673 B1Read-Rite Corporation · 2001
- Magnetoresistive sensor having hard biased current perpendicular to the plane sensor203US 6,353,318 B1Read-Rite Corporation · 2002
- Synthetic spin-valve device having high resistivity anti parallel coupling layer195US 6,175,476 B1Read-Rite Corporation · 2001
- Bias layers which are formed on underlayers promoting in-plane alignment of the c-axis of cobalt used in magnetoresistive transducers183US 6,185,081 B2Read-Rite Corporation · 2001