G11B 5/3109
Details
Official title: {Details (G11B5/3103 takes precedence)}
G11B5/3109 (Details) appears on 5,537 US grants and 3,782 published applications in this corpus.
Search patents in G11B- Granted patents
- 5,537
- Published applications
- 3,782
- Assignees
- 300
- Inventors
- 4,002
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 10 | 0 |
| 1987 | 16 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 30 | 0 |
| 1991 | 21 | 0 |
| 1992 | 36 | 0 |
| 1993 | 39 | 0 |
| 1994 | 33 | 0 |
| 1995 | 40 | 0 |
| 1996 | 48 | 0 |
| 1997 | 71 | 0 |
| 1998 | 119 | 0 |
| 1999 | 132 | 0 |
| 2000 | 140 | 0 |
| 2001 | 169 | 94 |
| 2002 | 194 | 233 |
| 2003 | 204 | 208 |
| 2004 | 246 | 295 |
| 2005 | 180 | 201 |
| 2006 | 228 | 187 |
| 2007 | 180 | 188 |
| 2008 | 155 | 251 |
| 2009 | 156 | 218 |
| 2010 | 178 | 205 |
| 2011 | 256 | 220 |
| 2012 | 355 | 202 |
| 2013 | 374 | 185 |
| 2014 | 301 | 175 |
| 2015 | 318 | 206 |
| 2016 | 230 | 118 |
| 2017 | 181 | 93 |
| 2018 | 145 | 81 |
| 2019 | 130 | 71 |
| 2020 | 135 | 65 |
| 2021 | 106 | 62 |
| 2022 | 76 | 51 |
| 2023 | 83 | 37 |
| 2024 | 62 | 63 |
| 2025 | 58 | 43 |
| 2026 | 31 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G11B 5/313Disposition of layers4,119
- G11B 5/3116Shaping of layers, poles or gaps for improving the form of the2,392
- G11B 5/312For reducing flux leakage between the electrical coil layers and the magnetic299
- G11B 5/3113For improving the magnetic domain structure or avoiding the formation or displacement274
Recent patents
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- 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
- Tapered Magnetic Main Pole Structure With Variable Peg Gap For Heat-Assisted Magnetic Recording Technology17 Sep 2026US 2026/0279390 A1Headway Technologies, Inc.
- Magnetic recording device10 Sep 2026US 2026/0268928 A1Kabushiki Kaisha Toshiba
- Low Magnetostriction Material For Read Sensors20 Aug 2026US 2026/0245777 A1Western Digital Technologies, Inc.
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Most cited
By later US patents
- Electronic device using magnetic components385US 5,695,864 AInternational Business Machines Corporation · 1997
- Antiferromagnetic-ferromagnetic exchange bias films230US 4,103,315 AInternational Business Machines Corporation · 1978
- Read/write head with shifted waveguide218US 6,016,290 ARead-Rite Corporation · 2000
- Inductive write head formed with flat yoke and merged with magnetoresistive read transducer213US 6,043,959 ARead-Rite Corporation · 2000
- Apparatus and method of device stripe height control211US 6,193,584 B1Read-Rite Corporation · 2001