G11B 5/11
Shielding of head against electric or magnetic fields
G11B5/11 (Shielding of head against electric or magnetic fields) appears on 831 US grants and 526 published applications in this corpus.
Search patents in G11B- Granted patents
- 831
- Published applications
- 526
- Assignees
- 138
- Inventors
- 1,281
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 12 | 0 |
| 1991 | 11 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 12 | 0 |
| 1997 | 10 | 0 |
| 1998 | 19 | 0 |
| 1999 | 16 | 0 |
| 2000 | 24 | 0 |
| 2001 | 17 | 2 |
| 2002 | 14 | 23 |
| 2003 | 21 | 13 |
| 2004 | 18 | 19 |
| 2005 | 16 | 24 |
| 2006 | 16 | 26 |
| 2007 | 13 | 50 |
| 2008 | 27 | 48 |
| 2009 | 27 | 29 |
| 2010 | 33 | 16 |
| 2011 | 39 | 20 |
| 2012 | 25 | 9 |
| 2013 | 28 | 13 |
| 2014 | 31 | 32 |
| 2015 | 60 | 39 |
| 2016 | 49 | 25 |
| 2017 | 38 | 26 |
| 2018 | 23 | 8 |
| 2019 | 16 | 11 |
| 2020 | 37 | 20 |
| 2021 | 29 | 13 |
| 2022 | 21 | 13 |
| 2023 | 20 | 10 |
| 2024 | 16 | 20 |
| 2025 | 7 | 7 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hard disk drive and write heads having refilled structures at side edges of an assist device6 Oct 2026US 12,755,755 B1Headway Technologies, Inc.
- Write head designs with refill materials on a back edge of an assist device for improved write head reliability and performance6 Oct 2026US 12,755,756 B1Headway Technologies, Inc.
- Shield designs for two dimensional magnetic recording read heads8 Sep 2026US 12,731,604 B2Western Digital Technologies, Inc.
- Magnetic sensor, magnetic head and magnetic recording device25 Aug 2026US 12,721,047 B2Kabushiki Kaisha Toshiba
- Perpendicular magnetic recording head equipping a spin torque oscillator element with an electric current in side gaps14 Apr 2026US 12,603,103 B2Headway 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.
- Resistor network for delivering current and a main pole coil and an assistive write element in a magnetic recording device18 Jun 2026US 2026/0171110 A1Western Digital Technologies, Inc.
- Magnetic Recording Writer With Improved Side Shield14 May 2026US 2026/0134881 A1Headway Technologies, Inc.
- Magnetic head and magnetic recording device16 Apr 2026US 2026/0105931 A1Kabushiki Kaisha Toshiba
- Magnetic sensor, magnetic head and magnetic recording device16 Apr 2026US 2026/0107690 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Method for providing a perpendicular magnetic recording (PMR) head191US 8,015,692 B1Western Digital (Fremont), LLC · 2011
- Slider-suspension assembly and method for attaching a slider to a suspension in a data recording disk file175US 4,761,699 AInternational Business Machines Corporation · 1988
- Perpendicular recording head with shaped pole surfaces for higher linear data densities170US 7,869,160 B1Western Digital (Fremont), LLC · 2011
- Narrow track width magnetoresistive sensor and method of making169US 6,700,759 B1Western Digital (Fremont), LLC · 2004
- Write element for perpendicular recording in a data storage system168US 7,239,478 B1Western Digital (Fremont), LLC · 2007