G11B 5/00821
Using stationary heads
Official title: {using stationary heads}
G11B5/00821 (Using stationary heads) appears on 530 US grants and 436 published applications in this corpus.
Search patents in G11B- Granted patents
- 530
- Published applications
- 436
- Assignees
- 73
- Inventors
- 447
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 4 | 3 |
| 2005 | 3 | 9 |
| 2006 | 5 | 8 |
| 2007 | 9 | 19 |
| 2008 | 14 | 31 |
| 2009 | 12 | 23 |
| 2010 | 22 | 21 |
| 2011 | 24 | 19 |
| 2012 | 25 | 29 |
| 2013 | 25 | 19 |
| 2014 | 37 | 40 |
| 2015 | 49 | 40 |
| 2016 | 48 | 46 |
| 2017 | 33 | 20 |
| 2018 | 36 | 26 |
| 2019 | 28 | 25 |
| 2020 | 33 | 10 |
| 2021 | 15 | 7 |
| 2022 | 7 | 0 |
| 2023 | 6 | 15 |
| 2024 | 19 | 17 |
| 2025 | 9 | 4 |
| 2026 | 9 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multichannel linear magnetic tape drive having dual tilting actuators4 Aug 2026US 12,700,426 B1Western Digital Technologies, Inc.
- Simultaneously writing data to two sets of channels in a tape media to increase channel transfer rate14 Jul 2026US 12,682,922 B2International Business Machines Corporation
- Non-contact tape head16 Jun 2026US 12,658,208 B2Western Digital Technologies, Inc.
- Magnetic tape apparatus having characterized head tilt angle3 Mar 2026US 12,567,440 B2FUJIFILM Corporation
- Servo reproduction apparatus, servo reproduction head, reproduction head, and method of producing a magnetic tape24 Feb 2026US 12,562,188 B2Sony Group Corporation
- Non-Contact Tape Head11 Jun 2026US 2026/0162676 A1Western Digital Technologies, Inc.
- Simultaneously writing data to two sets of channels in a tape media to increase channel transfer rate21 May 2026US 2026/0141918 A1International Business Machines Corporation
- Low crosstalk piggy-back tape head1 Jan 2026US 2026/0004806 A1International Business Machines Corporation
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus13 Nov 2025US 2025/0349318 A1FUJIFILM Corporation
- Magnetic tape reuse across products8 May 2025US 2025/0149060 A1International Business Machines Corporation
Most cited
By later US patents
- Magnetic tape device and head tracking servo method108US 9,972,351 B1FUJIFILM Corporation · 2018
- Electrostatic protection for a shielded MR sensor98US 5,539,598 AInternational Business Machines Corporation · 1996
- Multi-channel magnetic tape head module including flex circuit95US 5,862,014 AQuantum Corporation · 1999
- High moment side shield design for area density improvement of perpendicular magnetic recording (PMR) writer83US 9,361,912 B1Headway Technologies, Inc. · 2016
- Dynamic control of magnetic tape drive74US 5,892,633 AExabyte Corporation · 1999