G11B 21/086
On tapes
Official title: {on tapes}
G11B21/086 (On tapes) appears on 50 US grants and 5 published applications in this corpus.
Search patents in G11B- Granted patents
- 50
- Published applications
- 5
- Assignees
- 23
- Inventors
- 101
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Repositioning operation on a tape medium based on dataset information1 Jul 2025US 12,347,469 B1International Business Machines Corporation
- Servo pattern for skew based tape dimensional stability compensation29 Oct 2024US 12,131,761 B2International Business Machines Corporation
- Seek time to the beginning position of data on tape media21 May 2024US 11,990,154 B1Western Digital Technologies, Inc.
- Servo pattern for skew based tape dimensional stability compensation20 Jun 2023US 11,682,423 B2International Business Machines Corporation
- Tape head pitch spacing24 Jan 2023US 11,562,768 B1International Business Machines Corporation
- Servo pattern for skew based tape dimensional stability compensation10 Aug 2023US 2023/0253011 A1International Business Machines Corporation
- Servo pattern for skew based tape dimensional stability compensation7 Apr 2022US 2022/0108718 A1International Business Machines Corporation
- Method and device for verifying a servo pattern in tape media18 Sep 2014US 2014/0269242 A1Oracle International Corporation
- Detection of a lower limit of tape head travel in a single reel tape drive13 May 2004US 2004/0090697 A1Quantum Corporation
- Integrated optical tracking system for magnetic media22 Nov 2001US 2001/0043426 A1Storage Technology Corporation
Most cited
By later US patents
- Pivoting lever cam guide tape head positioner62US 6,075,678 AQuantum Corporation · 2000
- Device for reading data from or writing data to magnetic storage media and a method of positioning a tape head relative to the magnetic storage media57US 5,982,711 AHewlett-Packard Company · 1999
- Positioning systems including reliable track crossing detection for high speed relative motions46US 5,038,333 AInternational Business Machines Corporation · 1991
- Head-tape alignment apparatus with a tape edge find operation39US 4,802,030 AHewlett-Packard Company · 1989
- Optical position sensing device and method for sub-micron measurement29US 5,844,814 AInternational Business Machines Corporation · 1998