G11B 7/1387
Using the near-field effect
Official title: using the near-field effect
G11B7/1387 (Using the near-field effect) appears on 542 US grants and 446 published applications in this corpus.
Search patents in G11B- Granted patents
- 542
- Published applications
- 446
- Assignees
- 134
- Inventors
- 790
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 16 | 0 |
| 2001 | 29 | 18 |
| 2002 | 31 | 34 |
| 2003 | 41 | 35 |
| 2004 | 45 | 34 |
| 2005 | 31 | 35 |
| 2006 | 41 | 39 |
| 2007 | 20 | 23 |
| 2008 | 25 | 38 |
| 2009 | 25 | 47 |
| 2010 | 26 | 49 |
| 2011 | 48 | 29 |
| 2012 | 35 | 17 |
| 2013 | 21 | 9 |
| 2014 | 12 | 12 |
| 2015 | 12 | 9 |
| 2016 | 11 | 4 |
| 2017 | 9 | 5 |
| 2018 | 11 | 5 |
| 2019 | 4 | 1 |
| 2020 | 5 | 1 |
| 2021 | 3 | 0 |
| 2022 | 4 | 0 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- NFT back reflection monitor for heat-assisted magnetic recording head21 Apr 2026US 12,609,137 B1Seagate Technology LLC
- Heat-assisted magnetic recording head with a solid immersion mirror29 Jul 2025US 12,374,357 B1Seagate Technology LLC
- Iridium film with a thin iridium template layer for a heat-assisted magnetic recording (HAMR) writer28 May 2024US 11,996,126 B2Headway Technologies, Inc.
- Heat-assisted magnetic recording (HAMR) medium with optical-coupling multilayer between the recording layer and heat-sink layer9 Jan 2024US 11,869,556 B2Western Digital Technologies, Inc.
- Heat-assisted recording head having mirror liner that reduces evanescent coupling with near field transducer21 Nov 2023US 11,823,719 B1Seagate Technology LLC
- Iridium Film With A Thin Iridium Template Layer For A Heat-Assisted Magnetic Recording (HAMR) Writer4 Apr 2024US 2024/0112693 A1Headway Technologies, Inc.
- Heat-assisted magnetic recording (hamr) medium with optical-coupling multilayer between the recording layer and heat-sink layer16 Feb 2023US 2023/0048634 A1Western Digital Technologies, Inc.
- Materials for near field transducers and near field transducers containing same16 Jul 2020US 2020/0227086 A1Seagate Technology LLC
- Materials for near field transducers and near field transducers containing same21 Mar 2019US 2019/0088280 A1Seagate Technology LLC
- Materials for near field transducers and near field transducers containing same20 Dec 2018US 2018/0366153 A1Seagate Technology LLC
Most cited
By later US patents
- Optical recording system employing a solid immersion lens193US 5,125,750 AThe Board of Trustees of the Leland Stanford Junior University · 1992
- Near-field optical transducers for thermal assisted magnetic and optical data storage180US 7,330,404 B2Seagate Technology LLC · 2008
- High numerical aperture optical focusing device for use in data storage systems179US 6,185,051 B2Read-Rite Corporation · 2001
- Wafer processing techniques for near field magneto-optical head156US 6,094,803 ARead-Rite Corporation · 2000
- High numerical aperture optical focusing device for use in data storage systems153US 6,181,485 B2Read-Rite Corporation · 2001