G11B 2220/25
Characterised in that the disc is based on a specific recording technology
Official title: characterised in that the disc is based on a specific recording technology
G11B2220/25 (Characterised in that the disc is based on a specific recording technology) appears on 10,900 US grants and 10,499 published applications in this corpus.
Search patents in G11B- Granted patents
- 10,900
- Published applications
- 10,499
- Assignees
- 1,177
- Inventors
- 11,130
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 25 | 0 |
| 1986 | 17 | 0 |
| 1987 | 32 | 0 |
| 1988 | 44 | 0 |
| 1989 | 68 | 0 |
| 1990 | 60 | 0 |
| 1991 | 51 | 0 |
| 1992 | 80 | 0 |
| 1993 | 95 | 0 |
| 1994 | 104 | 0 |
| 1995 | 140 | 0 |
| 1996 | 149 | 0 |
| 1997 | 186 | 0 |
| 1998 | 301 | 0 |
| 1999 | 276 | 0 |
| 2000 | 322 | 0 |
| 2001 | 348 | 301 |
| 2002 | 401 | 782 |
| 2003 | 434 | 718 |
| 2004 | 422 | 978 |
| 2005 | 343 | 1018 |
| 2006 | 619 | 1073 |
| 2007 | 619 | 1267 |
| 2008 | 671 | 1000 |
| 2009 | 712 | 828 |
| 2010 | 827 | 720 |
| 2011 | 918 | 610 |
| 2012 | 800 | 399 |
| 2013 | 659 | 241 |
| 2014 | 446 | 155 |
| 2015 | 209 | 86 |
| 2016 | 121 | 55 |
| 2017 | 70 | 54 |
| 2018 | 56 | 36 |
| 2019 | 61 | 33 |
| 2020 | 44 | 29 |
| 2021 | 26 | 14 |
| 2022 | 23 | 22 |
| 2023 | 21 | 33 |
| 2024 | 27 | 27 |
| 2025 | 28 | 16 |
| 2026 | 17 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Switch device and hard disk device1 Sep 2026US 12,726,194 B2Rohm Co., Ltd.
- Optical signal transmission in a hard disk drive25 Aug 2026US 12,718,840 B2Seagate Technology LLC
- Increased VCM current resolution during track follow to decrease NRRO11 Aug 2026US 12,706,116 B2Western Digital Technologies, Inc.
- Disk device with exposed inner surface regions for improved cover coupling4 Aug 2026US 12,700,427 B2Kabushiki Kaisha Toshiba
- Near field transducers having magnetic inlays for improved heat-assisted magnetic recording28 Jul 2026US 12,694,897 B1Seagate Technology LLC
- Reproduction device, reproduction method, and recording medium17 Sep 2026US 2026/0281411 A1Saturn Licensing LLC
- Reproduction device, reproduction method, and recording medium27 Aug 2026US 2026/0254918 A1Saturn Licensing LLC
- Air bearing design for high oxygen partial pressure for heat-assisted magnetic recording30 Jul 2026US 2026/0221152 A1Western Digital Technologies, Inc.
- Disk device16 Jul 2026US 2026/0204284 A1Kabushiki Kaisha Toshiba
- Magnetic disk device25 Dec 2025US 2025/0391426 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Multimedia time warping system1,079US 6,233,389 B1TiVo Inc. · 2001
- Video communications system having a remotely controlled central source of video and audio data1,037US 4,949,187 A1990
- Integration of music from a personal library with real-time information1,026US 6,192,340 B12001
- Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels1,021US 5,943,422 AIntertrust Technologies Corporation · 1999
- Network apparatus and method for preview of music products and compilation of market data981US 5,963,916 AIntouch Group, Inc. · 1999