G11B 5/1278
Specially adapted for magnetisations perpendicular to the surface of the record carrier
Official title: {specially adapted for magnetisations perpendicular to the surface of the record carrier}
G11B5/1278 (Specially adapted for magnetisations perpendicular to the surface of the record carrier) appears on 2,188 US grants and 1,696 published applications in this corpus.
Search patents in G11B- Granted patents
- 2,188
- Published applications
- 1,696
- Assignees
- 176
- Inventors
- 1,948
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 9 | 0 |
| 1987 | 36 | 0 |
| 1988 | 29 | 0 |
| 1989 | 23 | 0 |
| 1990 | 18 | 0 |
| 1991 | 12 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 12 | 0 |
| 1998 | 18 | 0 |
| 1999 | 20 | 0 |
| 2000 | 7 | 0 |
| 2001 | 13 | 11 |
| 2002 | 8 | 31 |
| 2003 | 22 | 44 |
| 2004 | 46 | 58 |
| 2005 | 42 | 100 |
| 2006 | 69 | 149 |
| 2007 | 73 | 120 |
| 2008 | 78 | 166 |
| 2009 | 108 | 134 |
| 2010 | 107 | 93 |
| 2011 | 167 | 116 |
| 2012 | 187 | 95 |
| 2013 | 168 | 80 |
| 2014 | 145 | 73 |
| 2015 | 121 | 73 |
| 2016 | 96 | 40 |
| 2017 | 75 | 44 |
| 2018 | 59 | 30 |
| 2019 | 45 | 33 |
| 2020 | 76 | 41 |
| 2021 | 65 | 31 |
| 2022 | 42 | 24 |
| 2023 | 34 | 22 |
| 2024 | 37 | 45 |
| 2025 | 32 | 28 |
| 2026 | 16 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Magnetic sensor, magnetic head and magnetic recording device25 Aug 2026US 12,721,047 B2Kabushiki Kaisha Toshiba
- Perpendicular magnetic recording writer with tunable pole side bridge design11 Aug 2026US 12,706,113 B2Headway Technologies, Inc.
- Double-mask near-field transducer (NFT) and method thereof4 Aug 2026US 12,700,423 B1Western Digital Technologies, Inc.
- Dual FGL and dual SPL spintronic device to reduce perpendicular field at writing location4 Aug 2026US 12,700,424 B2Western Digital Technoloies, 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.
- Tapered Magnetic Main Pole Structure With Variable Peg Gap For Heat-Assisted Magnetic Recording Technology18 Jun 2026US 2026/0171113 A1Headway Technologies, Inc.
- Asymmetric Side Gap Writer Fabricated By Ion-Beam Etching (IBE) / Ion-Beam Deposition (IBD) Process For Aerial Density Capability (ADC) Improvement28 May 2026US 2026/0148749 A1Headway Technologies, Inc.
- Magnetic Recording Writer With Improved Side Shield14 May 2026US 2026/0134881 A1Headway Technologies, Inc.
Most cited
By later US patents
- Electronic device using magnetic components385US 5,695,864 AInternational Business Machines Corporation · 1997
- Magnetic heads for perpendicular recording with trapezoidal pole tips231US 6,809,899 B1Western Digital (Fremont), LLC · 2004
- 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
- Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel196US 6,778,358 B1Western Digital (Fremont), LLC · 2004
- Method for providing a perpendicular magnetic recording (PMR) head191US 8,015,692 B1Western Digital (Fremont), LLC · 2011