G11B 5/2654
For recording or erasing
Official title: {for recording or erasing}
G11B5/2654 (For recording or erasing) appears on 87 US grants and 31 published applications in this corpus.
Search patents in G11B- Granted patents
- 87
- Published applications
- 31
- Assignees
- 42
- Inventors
- 160
- Latest grant
- 21 Oct 2025
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 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 4 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 3 |
| 2006 | 3 | 3 |
| 2007 | 1 | 1 |
| 2008 | 2 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 2 | 1 |
| 2014 | 4 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 0 |
| 2020 | 1 | 3 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 2 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Reduction of high tape contact pressure points against head assembly21 Oct 2025US 12,451,157 B2Western Digital Technologies, Inc.
- Fast partial erasure for drive sanitization29 Oct 2024US 12,131,758 B2Seagate Technology LLC
- Reduction of high tape contact pressure points against head assembly9 Jul 2024US 12,033,674 B2Western Digital Technologies, Inc.
- Tape head design having an antiferromagnetic coupling (AFC) null shield for same gap verify9 May 2023US 11,646,054 B2Western Digital Technologies, Inc.
- Three terminal magnetic recording head7 Mar 2023US 11,600,293 B1Western Digital Technologies, Inc.
- Reduction Of High Tape Contact Pressure Points Against Head Assembly12 Feb 2026US 2026/0045273 A1Western Digital Technologies, Inc.
- Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof9 Jan 2025US 2025/0014594 A1Western Digital Technologies, Inc.
- Reduction of high tape contact pressure points against head assembly26 Sep 2024US 2024/0321295 A1Western Digital Technologies, Inc.
- Fast partial erasure for drive sanitization14 Mar 2024US 2024/0087598 A1Seagate Technology LLC
- Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof29 Feb 2024US 2024/0071413 A1Western Digital 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
- Recording and reproducing apparatus101US 5,473,584 AMatsushita Electric Industrial Co., Ltd. · 1995
- Recording and reproducing apparatus53US 5,959,948 AMatsushita Electric Industrial Co., Ltd. · 1999
- Servo mark verify head35US 7,072,133 B1Imation Corp. · 2006
- Non-magnetic part in magnetic head assembly34US 4,667,259 AHitachi Metals, Ltd. · 1987