G11B 7/242
Of recording layers
Official title: of recording layers
G11B7/242 (Of recording layers) appears on 3,265 US grants and 2,399 published applications in this corpus.
Search patents in G11B- Granted patents
- 3,265
- Published applications
- 2,399
- Assignees
- 590
- Inventors
- 4,502
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 15 | 0 |
| 1981 | 30 | 0 |
| 1982 | 24 | 0 |
| 1983 | 28 | 0 |
| 1984 | 25 | 0 |
| 1985 | 36 | 0 |
| 1986 | 40 | 0 |
| 1987 | 69 | 0 |
| 1988 | 80 | 0 |
| 1989 | 90 | 0 |
| 1990 | 95 | 0 |
| 1991 | 113 | 0 |
| 1992 | 103 | 0 |
| 1993 | 134 | 0 |
| 1994 | 101 | 0 |
| 1995 | 95 | 0 |
| 1996 | 84 | 0 |
| 1997 | 84 | 0 |
| 1998 | 87 | 0 |
| 1999 | 106 | 0 |
| 2000 | 97 | 0 |
| 2001 | 113 | 57 |
| 2002 | 102 | 172 |
| 2003 | 125 | 215 |
| 2004 | 129 | 227 |
| 2005 | 115 | 268 |
| 2006 | 139 | 267 |
| 2007 | 95 | 201 |
| 2008 | 128 | 177 |
| 2009 | 99 | 184 |
| 2010 | 98 | 159 |
| 2011 | 110 | 95 |
| 2012 | 118 | 60 |
| 2013 | 94 | 54 |
| 2014 | 84 | 80 |
| 2015 | 44 | 21 |
| 2016 | 19 | 16 |
| 2017 | 16 | 14 |
| 2018 | 14 | 17 |
| 2019 | 10 | 14 |
| 2020 | 7 | 11 |
| 2021 | 12 | 19 |
| 2022 | 9 | 16 |
| 2023 | 14 | 13 |
| 2024 | 8 | 20 |
| 2025 | 8 | 17 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compound, polymerizable composition, polymer, holographic recording medium, optical material, and optical component25 Aug 2026US 12,717,227 B2Mitsubishi Chemical Corporation
- Writing and reading fluorescent optical storage media using Bessel beams18 Aug 2026US 12,711,988 B1Seagate Technology LLC
- Data recording on ceramic material12 May 2026US 12,626,722 B2Ceramic Data Solutions GmbH
- Method for long-term storage of information and storage medium therefor7 Apr 2026US 12,594,629 B2Ceramic Data Solutions GmbH
- Contact lens with improved tear film optical quality27 Jan 2026US 12,534,623 B2Johnson & Johnson Vision Care, Inc.
- Drawing apparatus and method of forming drawn object18 Jun 2026US 2026/0166890 A1Sony Group Corporation
- Compact Writing and Reading Head for Hyper Speed Data Recording on Ceramic Material28 May 2026US 2026/0148751 A1Ceramic Data Solutions GmbH
- Specific Benzopyrylium Salts as Dyestuffs for Photopolymer Compositions26 Mar 2026US 2026/0085188 A1Covestro Deutschland AG
- Holographic photopolymer material, holographic photosensitive film, holographic optical element, and display device22 Jan 2026US 2026/0022199 A1
- 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
Most cited
By later US patents
- Process of aligning and realigning liquid crystal media259US 4,974,941 AHercules Incorporated · 1990
- Grooved optical data storage device including a chalcogenide memory layer258US 4,719,594 AEnergy Conversion Devices, Inc. · 1988
- Hybridization of polynucleotides conjugated with chromophores and fluorophores to generate donor-to-donor energy transfer system232US 5,849,489 ANanogen, Inc. · 1998
- Hybridization of polynucleotides conjugated with chromophores and fluorophores to generate donor-to donor energy transfer system227US 5,565,322 ANanogen, Inc. · 1996
- Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium220US 6,280,684 B1Ricoh Company, Ltd. · 2001