G11B 5/3163
Fabrication methods or processes specially adapted for a particular head structure
Official title: {Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers}
G11B5/3163 (Fabrication methods or processes specially adapted for a particular head structure) appears on 3,330 US grants and 2,240 published applications in this corpus.
Search patents in G11B- Granted patents
- 3,330
- Published applications
- 2,240
- Assignees
- 260
- Inventors
- 3,327
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 13 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 17 | 0 |
| 1988 | 12 | 0 |
| 1989 | 27 | 0 |
| 1990 | 26 | 0 |
| 1991 | 18 | 0 |
| 1992 | 19 | 0 |
| 1993 | 21 | 0 |
| 1994 | 30 | 0 |
| 1995 | 32 | 0 |
| 1996 | 36 | 0 |
| 1997 | 62 | 0 |
| 1998 | 90 | 0 |
| 1999 | 114 | 0 |
| 2000 | 123 | 0 |
| 2001 | 118 | 63 |
| 2002 | 145 | 161 |
| 2003 | 154 | 157 |
| 2004 | 178 | 186 |
| 2005 | 112 | 144 |
| 2006 | 138 | 175 |
| 2007 | 133 | 173 |
| 2008 | 132 | 178 |
| 2009 | 131 | 162 |
| 2010 | 117 | 108 |
| 2011 | 159 | 105 |
| 2012 | 184 | 80 |
| 2013 | 181 | 79 |
| 2014 | 129 | 92 |
| 2015 | 144 | 102 |
| 2016 | 111 | 55 |
| 2017 | 86 | 50 |
| 2018 | 70 | 43 |
| 2019 | 57 | 35 |
| 2020 | 39 | 15 |
| 2021 | 30 | 9 |
| 2022 | 22 | 13 |
| 2023 | 22 | 16 |
| 2024 | 19 | 19 |
| 2025 | 16 | 12 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- 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.
- Read sensor with a layer having an adjustable etching rate21 Jul 2026US 12,688,867 B2Western Digital Technologies, Inc.
- Manufacturing method of conductive probe21 Jul 2026US 12,688,868 B2Resonac Hard Disk Corporation
- Ferroelectric storage apparatus and method of reading information8 Oct 2026US 2026/0311721 A1Resonac Hard Disk Corporation
- Tapered Magnetic Main Pole Structure With Variable Peg Gap For Heat-Assisted Magnetic Recording Technology18 Jun 2026US 2026/0171113 A1Headway Technologies, Inc.
- Forming a write pole using an oxidization resistant seed layer18 Jun 2026US 2026/0171114 A1Seagate Technology LLC
- 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
- Reactive ion beam etching method and a thin film head fabricated using the method287US 6,238,582 B1Veeco Instruments Inc. · 2001
- Antiferromagnetic-ferromagnetic exchange bias films230US 4,103,315 AInternational Business Machines Corporation · 1978
- Magnetoresistive sensor and head216US 6,153,062 AAlps Electric Co., Ltd. · 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