G11B 5/3143
Including additional layers for improving the electromagnetic transducing properties of the basic
Official title: {including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding (G11B5/3116, G11B5/312 take precedence)}
G11B5/3143 (Including additional layers for improving the electromagnetic transducing properties of the basic) appears on 1,463 US grants and 1,020 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,463
- Published applications
- 1,020
- Assignees
- 102
- Inventors
- 1,410
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 16 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 12 | 0 |
| 1997 | 12 | 0 |
| 1998 | 29 | 0 |
| 1999 | 13 | 0 |
| 2000 | 23 | 0 |
| 2001 | 24 | 8 |
| 2002 | 32 | 51 |
| 2003 | 38 | 41 |
| 2004 | 59 | 46 |
| 2005 | 32 | 40 |
| 2006 | 43 | 32 |
| 2007 | 29 | 49 |
| 2008 | 26 | 52 |
| 2009 | 36 | 61 |
| 2010 | 42 | 38 |
| 2011 | 60 | 61 |
| 2012 | 85 | 60 |
| 2013 | 114 | 59 |
| 2014 | 95 | 39 |
| 2015 | 84 | 51 |
| 2016 | 68 | 30 |
| 2017 | 61 | 38 |
| 2018 | 46 | 31 |
| 2019 | 43 | 38 |
| 2020 | 75 | 37 |
| 2021 | 58 | 35 |
| 2022 | 36 | 26 |
| 2023 | 40 | 19 |
| 2024 | 33 | 39 |
| 2025 | 27 | 24 |
| 2026 | 13 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Magnetic flux guiding device with spin torque oscillator (STO) film having negative spin polarization layers in assisted writing application8 Sep 2026US 12,731,605 B2Headway Technologies, Inc.
- Magneto-resistive reader utilizing read shields to maintain reference layer magnetization25 Aug 2026US 12,718,839 B2Headway Technologies, Inc.
- Perpendicular magnetic recording writer with tunable pole side bridge design11 Aug 2026US 12,706,113 B2Headway Technologies, Inc.
- Magnetic head and magnetic recording device24 Sep 2026US 2026/0290385 A1Kabushiki Kaisha Toshiba
- Magnetic recording device10 Sep 2026US 2026/0268928 A1Kabushiki Kaisha Toshiba
- Low Magnetostriction Material For Read Sensors20 Aug 2026US 2026/0245777 A1Western Digital Technologies, Inc.
- Perpendicular Magnetic Recording Head Equipping A Spin Torque Oscillator Element With An Electric Current In Side Gaps9 Jul 2026US 2026/0196242 A1Headway Technologies, Inc.
- Pre-Assisting Microwave-Assisted Magnetic Recording With Spin-Torque Nano-Oscillators18 Jun 2026US 2026/0171111 A1Headway Technologies, Inc.
Most cited
By later US patents
- Antiferromagnetic-ferromagnetic exchange bias films230US 4,103,315 AInternational Business Machines Corporation · 1978
- Method and system for providing a magnetic transducer having a high moment bilayer magnetic seed layer for a trailing shield197US 8,582,241 B1Western Digital (Fremont), LLC · 2013
- Method for providing a perpendicular magnetic recording (PMR) head191US 8,015,692 B1Western Digital (Fremont), LLC · 2011
- Thin film write head with improved laminated flux carrying structure and method of fabrication188US 6,233,116 B1Read-Rite Corporation · 2001
- Thin film write head for improved high speed and high density recording187US 6,353,511 B1Read-Rite Corporation · 2002