G11B 5/398
Specially shaped layers
Official title: {Specially shaped layers}
G11B5/398 (Specially shaped layers) appears on 610 US grants and 487 published applications in this corpus.
Search patents in G11B- Granted patents
- 610
- Published applications
- 487
- Assignees
- 72
- Inventors
- 774
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 9 | 0 |
| 1998 | 15 | 0 |
| 1999 | 15 | 0 |
| 2000 | 11 | 0 |
| 2001 | 6 | 2 |
| 2002 | 10 | 14 |
| 2003 | 11 | 11 |
| 2004 | 11 | 12 |
| 2005 | 7 | 14 |
| 2006 | 14 | 21 |
| 2007 | 14 | 41 |
| 2008 | 13 | 50 |
| 2009 | 28 | 42 |
| 2010 | 34 | 20 |
| 2011 | 33 | 29 |
| 2012 | 40 | 27 |
| 2013 | 33 | 17 |
| 2014 | 54 | 50 |
| 2015 | 64 | 44 |
| 2016 | 42 | 21 |
| 2017 | 27 | 19 |
| 2018 | 23 | 7 |
| 2019 | 10 | 7 |
| 2020 | 10 | 9 |
| 2021 | 13 | 3 |
| 2022 | 5 | 3 |
| 2023 | 5 | 3 |
| 2024 | 5 | 11 |
| 2025 | 8 | 8 |
| 2026 | 2 | 2 |
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.
- DFL TDMR middle shield throat height control for improved stability7 Oct 2025US 12,437,780 B2Western Digital Technologies, Inc.
- DFL reader signal sidebump imbalance reduction24 Jun 2025US 12,340,825 B2Western Digital Technologies, Inc.
- Spin-orbit torque SOT reader with recessed spin hall effect layer17 Jun 2025US 12,334,123 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 head and magnetic recording device16 Apr 2026US 2026/0105931 A1Kabushiki Kaisha Toshiba
- Read Head with Multiple Contacts Formed Underneath the Sensor25 Dec 2025US 2025/0391433 A1Western Digital Technologies, Inc.
- Spintronic Reader Utilizing The Inverse Spin Hall Effect2 Oct 2025US 2025/0308549 A1Headway Technologies, Inc.
- DFL Reader Signal Sidebump Imbalance Reduction28 Aug 2025US 2025/0273236 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Method and system for providing a read transducer having a reduced shield-to-shield spacing177US 8,675,318 B1Western Digital (Fremont), LLC · 2014
- Merged write head with magnetically isolated poletip167US 6,404,601 B1Read-Rite Corporation · 2002
- Vertical giant magnetoresistance sensor using a recessed shield167US 6,456,465 B1Read-Rite Corporation · 2002
- Data storage and retrieval apparatus with thin film read head having planarized extra gap and shield layers and method of fabrication thereof165US 6,496,334 B1Read-Rite Corporation · 2002
- Tunnel magnetoresistance read head with narrow shield-to-shield spacing165US 8,711,528 B1Western Digital (Fremont), LLC · 2014