G11B 7/2407
Tracks or pits
Official title: Tracks or pits; Shape, structure or physical properties thereof (layout of tracks or pits used as the identification information G11B7/007)
G11B7/2407 (Tracks or pits) appears on 2,109 US grants and 1,691 published applications in this corpus.
Search patents in G11B- Granted patents
- 2,109
- Published applications
- 1,691
- Assignees
- 287
- Inventors
- 2,170
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 18 | 0 |
| 1986 | 12 | 0 |
| 1987 | 19 | 0 |
| 1988 | 24 | 0 |
| 1989 | 30 | 0 |
| 1990 | 36 | 0 |
| 1991 | 33 | 0 |
| 1992 | 25 | 0 |
| 1993 | 35 | 0 |
| 1994 | 30 | 0 |
| 1995 | 34 | 0 |
| 1996 | 45 | 0 |
| 1997 | 62 | 0 |
| 1998 | 74 | 0 |
| 1999 | 65 | 0 |
| 2000 | 73 | 0 |
| 2001 | 81 | 53 |
| 2002 | 85 | 135 |
| 2003 | 98 | 145 |
| 2004 | 112 | 180 |
| 2005 | 64 | 215 |
| 2006 | 161 | 185 |
| 2007 | 120 | 169 |
| 2008 | 151 | 195 |
| 2009 | 129 | 97 |
| 2010 | 111 | 68 |
| 2011 | 86 | 41 |
| 2012 | 60 | 36 |
| 2013 | 50 | 40 |
| 2014 | 67 | 67 |
| 2015 | 21 | 13 |
| 2016 | 13 | 19 |
| 2017 | 12 | 9 |
| 2018 | 12 | 10 |
| 2019 | 8 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 3 |
| 2022 | 2 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nanostructuring from optical recording media9 Dec 2025US 12,494,227 B2The Board of Regents of the Nevada System of Higher Education On Behalf of the University of Nevada, Las Vegas
- Phase-modulated optical data storage10 Dec 2024US 12,165,682 B2Microsoft Technology Licensing, LLC
- Optical device and method for detection target substance analysis4 Jul 2023US 11,692,924 B2JVCKENWOOD Corporation
- Method for playing back information recording medium13 Jun 2023US 11,676,634 B2Memory-Tech Holdings Inc.
- Recording apparatus, recording method, reproduction apparatus, reproduction method, recording medium, encoding apparatus, and decoding apparatus6 Dec 2022US 11,521,651 B2Sony Corporation
- Nanostructuring from optical recording media28 May 2026US 2026/0148752 A1Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada
- Nanostructuring from Optical Recording Media25 Sep 2025US 2025/0299696 A1Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada
- Phase-modulated optical data storage13 Mar 2025US 2025/0087240 A1Microsoft Technology Licensing, LLC
- Recording medium, method for recording information, and method for reading information13 Feb 2025US 2025/0054515 A1Panasonic Intellectual Property Management Co., Ltd.
- Recording medium, method for recording information, and method for reading information6 Feb 2025US 2025/0046341 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Multimedia optical disk, reproduction apparatus and method for achieving variable scene development based on interactive control381US 5,907,658 AMatsushita Electric Industrial Co., Ltd. · 1999
- Multimedia optical disc for storing audio data and sub-picture data in a plurality of channels as well as moving picture data and apparatus and method for reproducing the multimedia optical disc261US 6,088,507 AMatsushita Electric Industrial Co., Ltd. · 2000
- Method of recording or reproducing data on or from high density multi-layer recording medium using variable light intensity218US 7,009,927 B2Samsung Electronics Co., Ltd. · 2006
- Optical reproducing method215US 6,549,497 B2Hitachi, Ltd. · 2003
- Optical recording medium having a plurality of discrete phase change data recording points198US 5,591,501 AEnergy Conversion Devices, Inc. · 1997