G11B 5/59638
Servo formatting apparatuses
Official title: {Servo formatting apparatuses, e.g. servo-writers}
G11B5/59638 (Servo formatting apparatuses) appears on 183 US grants and 139 published applications in this corpus.
Search patents in G11B- Granted patents
- 183
- Published applications
- 139
- Assignees
- 43
- Inventors
- 333
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 5 |
| 2003 | 6 | 1 |
| 2004 | 2 | 1 |
| 2005 | 3 | 7 |
| 2006 | 10 | 5 |
| 2007 | 5 | 7 |
| 2008 | 8 | 17 |
| 2009 | 16 | 16 |
| 2010 | 15 | 13 |
| 2011 | 13 | 8 |
| 2012 | 7 | 2 |
| 2013 | 8 | 9 |
| 2014 | 10 | 3 |
| 2015 | 12 | 6 |
| 2016 | 8 | 9 |
| 2017 | 10 | 3 |
| 2018 | 10 | 4 |
| 2019 | 4 | 3 |
| 2020 | 5 | 6 |
| 2021 | 7 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 3 |
| 2024 | 5 | 3 |
| 2025 | 6 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic recording device and a method for manufacturing the same3 Mar 2026US 12,567,441 B2Kabushiki Kaisha Toshiba
- Method of manufacturing disk device, and disk device25 Nov 2025US 12,482,491 B2Kabushiki Kaisha Toshiba
- Magnetic disk apparatus and method16 Sep 2025US 12,417,785 B1Kabushiki Kaisha Toshiba
- Interleaved servo patterns in a data storage device19 Aug 2025US 12,394,435 B1Western Digital Technologies, Inc.
- Parallel self-servo write circuitry in a data storage device15 Jul 2025US 12,361,970 B1Western Digital Technologies, Inc.
- Laser current calibration under id crash stop compression area for blank disk self-servo write10 Sep 2026US 2026/0268931 A1
- Method of manufacturing disk device, and disk device18 Sep 2025US 2025/0292795 A1Kabushiki Kaisha Toshiba
- Magnetic recording device and a method for manufacturing the same28 Aug 2025US 2025/0273238 A1Kabushiki Kaisha Toshiba
- Magnetic disk device and method of controlling the same19 Sep 2024US 2024/0312479 A1Kabushiki Kaisha Toshiba
- Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tape2 May 2024US 2024/0144968 A1FUJIFILM Corporation
Most cited
By later US patents
- Adjusting track density by changing PES algorithm when servo writing a disk drive from spiral tracks161US 7,068,459 B1Western Digital Technologies, Inc. · 2006
- Method of simultaneously writing servo tracks on a hard disk drive154US 6,687,073 B1Western Digital Technologies, Inc. · 2004
- Method for manufacturing a disk drive having an overwriteable clock track149US 6,388,833 B1Western Digital Technologies, Inc. · 2002
- Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrier141US 6,347,016 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Servo writing a disk drive by overwriting a harmonic frequency fill pattern in the servo burst area139US 7,068,461 B1Western Digital Technologies, Inc. · 2006