G11B 5/2652
With more than one gap simultaneously operative
Official title: {with more than one gap simultaneously operative (with controlled single gap G11B5/245)}
G11B5/2652 (With more than one gap simultaneously operative) appears on 149 US grants and 75 published applications in this corpus.
Search patents in G11B- Granted patents
- 149
- Published applications
- 75
- Assignees
- 54
- Inventors
- 256
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 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 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 4 |
| 2003 | 5 | 6 |
| 2004 | 10 | 5 |
| 2005 | 6 | 10 |
| 2006 | 6 | 3 |
| 2007 | 4 | 2 |
| 2008 | 2 | 0 |
| 2009 | 3 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 4 |
| 2013 | 3 | 2 |
| 2014 | 5 | 3 |
| 2015 | 3 | 1 |
| 2016 | 6 | 10 |
| 2017 | 8 | 0 |
| 2018 | 4 | 6 |
| 2019 | 5 | 1 |
| 2020 | 2 | 4 |
| 2021 | 3 | 2 |
| 2022 | 2 | 2 |
| 2023 | 4 | 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.
- Data storage system and magnetic tape recording media with features for correcting the combined effects of tape skew and tape dimensional stability10 Oct 2023US 11,783,857 B2International Business Machines Corporation
- Tape head design having a null shield for same gap verify20 Jun 2023US 11,682,421 B2Western 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
- Large angle azimuth recording and head configurations50US 6,947,247 B2Advanced Research Corporation · 2005
- Servo mark verify head35US 7,072,133 B1Imation Corp. · 2006