G11B 5/00817
On longitudinal tracks only
Official title: {on longitudinal tracks only, e.g. for serpentine format recording}
G11B5/00817 (On longitudinal tracks only) appears on 901 US grants and 655 published applications in this corpus.
Search patents in G11B- Granted patents
- 901
- Published applications
- 655
- Assignees
- 109
- Inventors
- 747
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 12 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 12 | 0 |
| 1995 | 9 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 16 | 0 |
| 1999 | 29 | 0 |
| 2000 | 25 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 2 |
| 2003 | 5 | 4 |
| 2004 | 7 | 11 |
| 2005 | 4 | 11 |
| 2006 | 8 | 18 |
| 2007 | 17 | 24 |
| 2008 | 19 | 37 |
| 2009 | 14 | 25 |
| 2010 | 27 | 26 |
| 2011 | 29 | 21 |
| 2012 | 31 | 35 |
| 2013 | 30 | 24 |
| 2014 | 45 | 47 |
| 2015 | 64 | 60 |
| 2016 | 67 | 57 |
| 2017 | 50 | 32 |
| 2018 | 49 | 41 |
| 2019 | 48 | 39 |
| 2020 | 59 | 34 |
| 2021 | 47 | 38 |
| 2022 | 28 | 11 |
| 2023 | 16 | 22 |
| 2024 | 27 | 24 |
| 2025 | 16 | 5 |
| 2026 | 12 | 5 |
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, magnetic tape cartridge, and magnetic tape apparatus28 Apr 2026US 12,614,563 B2FUJIFILM Corporation
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus28 Apr 2026US 12,614,564 B2FUJIFILM 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
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus14 May 2026US 2026/0134883 A1FUJIFILM Corporation
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus26 Mar 2026US 2026/0088048 A1FUJIFILM Corporation
- Low crosstalk piggy-back tape head1 Jan 2026US 2026/0004806 A1International Business Machines Corporation
Most cited
By later US patents
- Magnetic tape device, magnetic reproducing method, and head tracking servo method122US 10,134,433 B2FUJIFILM Corporation · 2018
- Magnetic tape device and head tracking servo method108US 9,972,351 B1FUJIFILM Corporation · 2018
- Servo method and apparatus for very high track density magnetic recording by adjusting head position based on servo information read from adjacent track102US 5,371,638 ADigital Equipment Corporation · 1994
- 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