G11B 20/0092
Involving measures which are linked to media defects or read/write errors
Official title: {involving measures which are linked to media defects or read/write errors}
G11B20/0092 (Involving measures which are linked to media defects or read/write errors) appears on 279 US grants and 280 published applications in this corpus.
Search patents in G11B- Granted patents
- 279
- Published applications
- 280
- Assignees
- 111
- Inventors
- 395
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 12 | 0 |
| 2001 | 17 | 3 |
| 2002 | 9 | 22 |
| 2003 | 14 | 27 |
| 2004 | 14 | 22 |
| 2005 | 9 | 34 |
| 2006 | 19 | 24 |
| 2007 | 16 | 33 |
| 2008 | 16 | 48 |
| 2009 | 23 | 20 |
| 2010 | 26 | 11 |
| 2011 | 15 | 7 |
| 2012 | 16 | 9 |
| 2013 | 8 | 5 |
| 2014 | 9 | 3 |
| 2015 | 4 | 2 |
| 2016 | 8 | 1 |
| 2017 | 1 | 2 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Simple nonautonomous peering media clone detection25 Nov 2025US 12,481,729 B2Warner Bros. Entertainment Inc.
- Magnetic disk device21 Jan 2025US 12,205,617 B2Kabushiki Kaisha Toshiba
- Noncontact communication medium, magnetic tape cartridge, method for operating noncontact communication medium, and program10 Oct 2023US 11,783,859 B2FUJIFILM Corporation
- Method and apparatus for delivering encoded content21 Jun 2022US 11,366,878 B2
- Magnetic disk device configured to write parity data that is based on data being written to a parity sector when no error is detected in writing the data being written10 Dec 2019US 10,504,550 B2Kabushiki Kaisha Toshiba
- Read after write in a multiple revolution hard disk drive29 Jan 2026US 2026/0031106 A1Seagate Technology LLC
- Magnetic disk device5 Sep 2024US 2024/0296869 A1Kabushiki Kaisha Toshiba
- Simple nonautonomous peering media clone detection2 May 2024US 2024/0143728 A1Warner Bros. Entertainment Inc.
- Noncontact communication medium, magnetic tape cartridge, method for operating noncontact communication medium, and program16 Mar 2023US 2023/0084471 A1FUJIFILM Corporation
- Magnetic disk device configured to write parity data that is based on data being written to a parity sector when noo error is detected in writing the data being written12 Sep 2019US 2019/0279678 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Copyprotecting system for software protection235US 4,584,641 A1986
- Hardware key-on-disk system for copy-protecting magnetic storage media230US 4,577,289 AInternational Business Machines Corporation · 1986
- Method for utilizing medium nonuniformities to minimize unauthorized duplication of digital information183US 5,412,718 AInstitute of Systems Science · 1995
- Computer program protection method180US 4,462,078 A1984
- Optical disk having electronic watermark, reproducing apparatus thereof and copy protecting method using the same136US 6,490,683 B1Kabushiki Kaisha Toshiba · 2002