G11B 7/24035
Recording layers
Official title: Recording layers (substrates also used as recording layers G11B7/24047)
G11B7/24035 (Recording layers) appears on 1,606 US grants and 2,200 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,606
- Published applications
- 2,200
- Assignees
- 326
- Inventors
- 2,247
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 13 | 0 |
| 1996 | 9 | 0 |
| 1997 | 16 | 0 |
| 1998 | 23 | 0 |
| 1999 | 16 | 0 |
| 2000 | 24 | 0 |
| 2001 | 27 | 6 |
| 2002 | 26 | 65 |
| 2003 | 40 | 80 |
| 2004 | 49 | 147 |
| 2005 | 46 | 213 |
| 2006 | 84 | 263 |
| 2007 | 96 | 269 |
| 2008 | 143 | 262 |
| 2009 | 111 | 203 |
| 2010 | 162 | 174 |
| 2011 | 175 | 128 |
| 2012 | 154 | 94 |
| 2013 | 128 | 67 |
| 2014 | 94 | 59 |
| 2015 | 37 | 29 |
| 2016 | 19 | 17 |
| 2017 | 16 | 13 |
| 2018 | 15 | 16 |
| 2019 | 10 | 11 |
| 2020 | 6 | 14 |
| 2021 | 7 | 13 |
| 2022 | 9 | 7 |
| 2023 | 13 | 8 |
| 2024 | 9 | 19 |
| 2025 | 8 | 19 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Non-volatile data storage medium and system25 Aug 2026US 12,718,843 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Hologram recording medium and optical element comprising the same18 Nov 2025US 12,473,382 B2LG Chem.Ltd.
- Photopolymer compositions for thermostable photopolymers in the visible spectral range2 Sep 2025US 12,406,696 B2Covestro Deutschland AG
- Holographic storage19 Aug 2025US 12,394,438 B2Microsoft Technology Licensing, LLC
- Multidimensional optical storage media having light confinement layers and reading methodology therefor12 Aug 2025US 12,387,753 B1Seagate Technology LLC
- Photopolymer film, composition for forming photopolymer film, hologram recording medium and optical element16 Jul 2026US 2026/0202793 A1LG Chem.Ltd.
- Optical recording medium manufacturing method, and transfer apparatus for optical recording medium14 May 2026US 2026/0134884 A1Sony Group Corporation
- Security tag29 Jan 2026US 2026/0028465 A1Murata Manufacturing Co., Ltd.
- Photosensitive composition for hologram recording, hologram recording medium, polymer, large capacity memory, optical element, ar light guide plate, and ar glasses22 Jan 2026US 2026/0023321 A1Mitsubishi Chemical Corporation
- Optical information storage medium6 Nov 2025US 2025/0342857 A1
Most cited
By later US patents
- 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
- Multilayer information disc192US 4,450,553 AU. S. Philips Corporation · 1984
- Mark forming apparatus, method of forming laser mark on optical disk, reproducing apparatus, optical disk and method of producing optical disk167US 5,761,301 AMatsushita Electric Industrial Co., Ltd. · 1998
- Multi-layered recording disk and recording/reproducing system using the same155US 5,608,715 APioneer Electronic Corporation · 1997
- Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system144US 6,938,162 B1Matsushita Electric Industrial Co., Ltd. · 2005