G11B 5/2657
All the gaps having the same dimension in the direction transverse to
Official title: {all the gaps having the same dimension in the direction transverse to the track direction}
G11B5/2657 (All the gaps having the same dimension in the direction transverse to) appears on 18 US grants and 11 published applications in this corpus.
Search patents in G11B- Granted patents
- 18
- Published applications
- 11
- Assignees
- 19
- Inventors
- 46
- Latest grant
- 7 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 2 | 1 |
| 2014 | 3 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Three terminal magnetic recording head7 Mar 2023US 11,600,293 B1Western Digital Technologies, Inc.
- Narrow band dwell monitoring11 Jun 2019US 10,319,397 B2Seagate Technology LLC
- Write head having recessed magnetic material in gap region26 Aug 2014US 8,817,420 B2Headway Technologies, Inc.
- Write head having recessed magnetic material in gap region1 Jul 2014US 8,767,349 B2Headway Technologies, Inc.
- Method of manufacturing magnetic head for perpendicular magnetic recording having a return path section22 Apr 2014US 8,701,273 B2Headway Technologies, Inc.
- Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof9 Jan 2025US 2025/0014594 A1Western Digital Technologies, Inc.
- Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof29 Feb 2024US 2024/0071413 A1Western Digital Technologies, Inc.
- Narrow band dwell monitoring22 Nov 2018US 2018/0336921 A1Seagate Technology LLC
- Method of manufacturing magnetic head for perpendicular magnetic recording having a return path section31 Oct 2013US 2013/0283601 A1Headway Technologies, Inc.
- Write Head Having Recessed Magnetic Material In Gap Region7 Jun 2012US 2012/0137507 A1Headway Technologies, Inc.
Most cited
By later US patents
- Write head for improved manufacturability larger write field and reduced adjacent track erasure151US 7,349,179 B1Western Digital (Fremont), LLC · 2008
- Servo mark verify head35US 7,072,133 B1Imation Corp. · 2006
- Three pole single element magnetic read/write head21US 4,644,432 AInternational Business Machines Corporation · 1987
- Magnetic erasing head with gaps utilizing high flux density and high permeability19US 4,180,835 ASony Corporation · 1979
- Magnetic transducer assembly with improved crosstalk reduction12US 4,758,917 AAmpex Corporation · 1988