G11B 5/3123
By using special coil configurations or conductors
Official title: {by using special coil configurations or conductors}
G11B5/3123 (By using special coil configurations or conductors) appears on 201 US grants and 149 published applications in this corpus.
Search patents in G11B- Granted patents
- 201
- Published applications
- 149
- Assignees
- 39
- Inventors
- 319
- Latest grant
- 19 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 5 |
| 2005 | 2 | 6 |
| 2006 | 1 | 3 |
| 2007 | 4 | 12 |
| 2008 | 7 | 26 |
| 2009 | 7 | 17 |
| 2010 | 12 | 16 |
| 2011 | 17 | 4 |
| 2012 | 18 | 10 |
| 2013 | 25 | 12 |
| 2014 | 21 | 11 |
| 2015 | 26 | 5 |
| 2016 | 11 | 6 |
| 2017 | 13 | 8 |
| 2018 | 3 | 1 |
| 2019 | 4 | 2 |
| 2020 | 4 | 3 |
| 2021 | 3 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Write transducer with symmetric yoke structure19 Oct 2021US 11,152,019 B2International Business Machines Corporation
- Magnetic recording devices and methods using a write-field-enhancement structure and bias current with offset pulses23 Mar 2021US 10,957,346 B2Western Digital Technologies, Inc.
- True one turn (T1T) perpendicular magnetic recording (PMR) writer designs9 Feb 2021US 10,916,261 B1Headway Technologies, Inc.
- Magnetic head including a return path section22 Dec 2020US 10,872,624 B1Headway Technologies, Inc.
- Magnetic head with a main pole including first and second layers and manufacturing method for the same17 Nov 2020US 10,839,829 B1Headway Technologies, Inc.
- Write transducer with symmetric yoke structure13 May 2021US 2021/0142822 A1International Business Machines Corporation
- Magnetic recording devices and methods using a write-field-enhancement structure and bias current with offset pulses5 Nov 2020US 2020/0349967 A1Western Digital Technologies, Inc.
- Magnetic recording head and magnetic recording and reproducing device comprising the same9 Jul 2020US 2020/0219533 A1Kabushiki Kaisha Toshiba
- Magnetic recording head and magnetic recording and reproducing device comprising the same2 Jan 2020US 2020/0005816 A1Kabushiki Kaisha Toshiba
- Dual Perpendicular Magnetic Recording (PMR) Writer Base Structures and Mirror Imaged Asymmetrical Magnetic Core Shapes for Reduced Writer-Writer Spacing (WWS)12 Sep 2019US 2019/0279664 A1Headway Technologies, Inc.
Most cited
By later US patents
- Magnetic read/write device with insulated coil layer recessed into pole165US 6,466,404 B1Read-Rite Corporation · 2002
- Magnetic read/write device with insulated coil layer recessed into pole162US 6,349,014 B1Read-Rite Corporation · 2002
- System for providing a transducer having a main coil and an additional coil separated from the main pole by a write shield162US 8,547,659 B1Western Digital (Fremont), LLC · 2013
- Low resistance coil structure for high speed writer161US 6,333,830 B2Read-Rite Corporation · 2001
- Method and system for providing dynamic actuation of a write head using a strain element156US 6,934,113 B1Western Digital (Fremont), LLC · 2005