G11B 5/314
Where the layers are extra layers normally not provided in the transducing
Official title: {where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers (G11B5/3196 takes precedence)}
G11B5/314 (Where the layers are extra layers normally not provided in the transducing) appears on 1,504 US grants and 1,144 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,504
- Published applications
- 1,144
- Assignees
- 100
- Inventors
- 1,211
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 8 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 3 |
| 2002 | 1 | 1 |
| 2003 | 6 | 5 |
| 2004 | 4 | 11 |
| 2005 | 4 | 17 |
| 2006 | 15 | 28 |
| 2007 | 9 | 28 |
| 2008 | 13 | 53 |
| 2009 | 23 | 63 |
| 2010 | 42 | 98 |
| 2011 | 85 | 110 |
| 2012 | 155 | 96 |
| 2013 | 182 | 75 |
| 2014 | 129 | 88 |
| 2015 | 164 | 117 |
| 2016 | 122 | 76 |
| 2017 | 103 | 54 |
| 2018 | 79 | 32 |
| 2019 | 73 | 33 |
| 2020 | 56 | 28 |
| 2021 | 56 | 26 |
| 2022 | 36 | 24 |
| 2023 | 40 | 15 |
| 2024 | 31 | 29 |
| 2025 | 31 | 21 |
| 2026 | 20 | 13 |
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.
- Near field transducer with template layer for improved reliability11 Aug 2026US 12,706,118 B2Headway Technologies, Inc.
- Vertical cavity surface emitting laser, head gimbal assembly, and fabrication process11 Aug 2026US 12,706,439 B2Western Digital 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.
- Tapered Magnetic Main Pole Structure With Variable Peg Gap For Heat-Assisted Magnetic Recording Technology17 Sep 2026US 2026/0279390 A1Headway 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.
- Tapered Optical And Magnetic Elements For Improved Writing In Heat-Assisted Magnetic Recording18 Jun 2026US 2026/0171112 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.
- Data storage device shaping read thermal sensor bias signal to balance write thermal sensor signal during laser operation11 Jun 2026US 2026/0162674 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Read/write head with shifted waveguide218US 6,016,290 ARead-Rite Corporation · 2000
- Laser mounting for a thermally assisted GMR head203US 6,404,706 B1Read-Rite Corporation · 2002
- Method and system for providing an energy assisted magnetic recording disk drive having a non-conformal heat spreader194US 8,320,220 B1Western Digital (Fremont), LLC · 2012
- Near-field optical transducers for thermal assisted magnetic and optical data storage180US 7,330,404 B2Seagate Technology LLC · 2008
- Method and system for providing a write pole in an energy assisted magnetic recording disk drive180US 8,164,855 B1Western Digital (Fremont), LLC · 2012