G11B 2020/1242
The area forming one or more zones, wherein each zone is shaped
Official title: {the area forming one or more zones, wherein each zone is shaped like an annulus or a circular sector}
G11B2020/1242 (The area forming one or more zones, wherein each zone is shaped) appears on 213 US grants and 228 published applications in this corpus.
Search patents in G11B- Granted patents
- 213
- Published applications
- 228
- Assignees
- 61
- Inventors
- 279
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 6 |
| 2002 | 4 | 12 |
| 2003 | 8 | 8 |
| 2004 | 12 | 17 |
| 2005 | 4 | 14 |
| 2006 | 17 | 19 |
| 2007 | 33 | 68 |
| 2008 | 35 | 20 |
| 2009 | 11 | 15 |
| 2010 | 11 | 6 |
| 2011 | 12 | 7 |
| 2012 | 10 | 9 |
| 2013 | 5 | 1 |
| 2014 | 3 | 1 |
| 2015 | 3 | 4 |
| 2016 | 12 | 7 |
| 2017 | 5 | 7 |
| 2018 | 4 | 3 |
| 2019 | 5 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Hard disk drive with dynamically designated media zones for archiving and performance16 Sep 2025US 12,417,787 B1Seagate Technology LLC
- Data storage device with write caching for maximizing disk access during laser diode steady state11 Feb 2025US 12,223,983 B1Western Digital Technologies, Inc.
- Dynamic track interference write counting for magnetic disks23 May 2023US 11,657,847 B1Western Digital Technologies, Inc.
- Partial updates for shingled magnetic recording devices16 Feb 2021US 10,923,152 B2Amazon Technologies, Inc.
- Method and apparatus for caching data in an solid state disk (SSD) of a hybrid drive that includes the SSD and a hard disk drive (HDD)1 Sep 2020US 10,761,737 B2Marvell Asia Pte Ltd
- Multi-speed hard disk drive4 Aug 2022US 2022/0246177 A1Seagate Technology LLC
- Partial updates for shingled magnetic recording devices27 Feb 2020US 2020/0066303 A1Amazon Technologies, Inc.
- Dynamic hybrid shingled magnetic recording8 Aug 2019US 2019/0244638 A1Western Digital Technologies, Inc.
- Disc drive throughput balancing4 Jul 2019US 2019/0205041 A1Seagate Technology LLC
- Method and apparatus for caching data in an solid state disk (ssd) of a hybrid drive that includes the ssd and a hard disk drive (hdd)27 Dec 2018US 2018/0373442 A1Marvell World Trade Ltd.
Most cited
By later US patents
- Rewritable optical disk with spare area and optical disk processing apparatus141US 6,469,978 B1Mitsubishi Denki Kabushiki Kaisha · 2002
- Disk drive write verifying unformatted data sectors137US 8,004,785 B1Western Digital Technologies, Inc. · 2011
- Disk drive executing log structured writes to physical zones based on power mode131US 8,576,511 B1Western Digital Technologies, Inc. · 2013
- Method, apparatus, medium for storing and controlling accessibility to a removable medium104US 6,286,087 B1Fujitsu Limited · 2001
- Magneto-optical disk having write-once identification marks and method for recording thereof79US 6,266,299 B1Matsushita Electric Industrial Co., Ltd. · 2001