G11B 5/3941
The flux closure films being used for providing a closed magnetic circuit
Official title: {the flux closure films being used for providing a closed magnetic circuit to the MR film}
G11B5/3941 (The flux closure films being used for providing a closed magnetic circuit) appears on 9 US grants and 3 published applications in this corpus.
Search patents in G11B- Granted patents
- 9
- Published applications
- 3
- Assignees
- 5
- Inventors
- 23
- Latest grant
- 19 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Perpendicular magnetic recording (PMR) writer with tunable pole protrusion (TPP) designs for 2 terabytes/platter (TB/P) and beyond19 Oct 2021US 11,152,021 B1Headway Technologies, Inc.
- Thin film magnetic element having a pair of first soft magnetic layers sandwiching a magnetoresistive effect film and a coil windingly formed about a second soft magnetic layer6 Oct 2015US 9,153,771 B2TDK Corporation
- MR sensor with flux guide enhanced hard bias structure25 Feb 2014US 8,659,292 B2Headway Technologies, Inc.
- Stabilization of GMR devices23 Mar 2004US 6,709,696 B2Seagate Technology LLC
- Stabilization of GMR devices24 Sep 2002US 6,455,177 B1Seagate Technology LLC
Most cited
By later US patents
- Magnetic transducer head utilizing magnetoresistance effect38US 4,896,235 ASony Corporation · 1990
- Stabilization of GMR devices12US 6,455,177 B1Seagate Technology LLC · 2002
- Perpendicular magnetic recording (PMR) writer with tunable pole protrusion (TPP) designs for 2 terabytes/platter (TB/P) and beyond10US 11,152,021 B1Headway Technologies, Inc. · 2021
- Thin film magnetic head and method for producing same4US 5,695,657 ASony Corporation · 1997
- Thin-film magnetic head3US 5,708,542 ASony Corporation · 1998