G11B 7/0052
Involving reflectivity, absorption or colour changes
Official title: {involving reflectivity, absorption or colour changes}
G11B7/0052 (Involving reflectivity, absorption or colour changes) appears on 200 US grants and 121 published applications in this corpus.
Search patents in G11B- Granted patents
- 200
- Published applications
- 121
- Assignees
- 94
- Inventors
- 439
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 13 | 0 |
| 1998 | 14 | 0 |
| 1999 | 13 | 0 |
| 2000 | 12 | 0 |
| 2001 | 10 | 9 |
| 2002 | 12 | 18 |
| 2003 | 15 | 7 |
| 2004 | 6 | 16 |
| 2005 | 7 | 13 |
| 2006 | 11 | 13 |
| 2007 | 4 | 7 |
| 2008 | 6 | 5 |
| 2009 | 2 | 2 |
| 2010 | 5 | 4 |
| 2011 | 3 | 3 |
| 2012 | 2 | 0 |
| 2013 | 3 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 3 | 5 |
| 2017 | 6 | 4 |
| 2018 | 4 | 4 |
| 2019 | 4 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 3 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical storage medium24 Oct 2023US 11,798,589 B2Case Western Reserve University
- Optical information storage medium28 Dec 2021US 11,211,091 B2Case Western Reserve University
- High density optical disk processing apparatus, method, and computer-readable medium10 Sep 2019US 10,410,667 B2Sony Corporation
- Reproducing device13 Aug 2019US 10,381,039 B2Memory-Tech Holdings Inc.
- Optical information storage medium12 Mar 2019US 10,229,709 B2Case Western Reserve University
- Optical information storage medium6 Nov 2025US 2025/0342857 A1
- Compound, optical absorbing material, non-linear optical absorbing material, recording medium, information recording method, and information reading method31 Oct 2024US 2024/0363144 A1Panasonic Intellectual Property Management Co., Ltd.
- Improvements in optical data storage8 Aug 2024US 2024/0265941 A1University of South Australia
- Optical storage medium15 Feb 2024US 2024/0055020 A1Case Western Reserve University
- Optical storage medium29 Dec 2022US 2022/0415351 A1Case Western Reserve University
Most cited
By later US patents
- Methods for electronic fluorescent perturbation for analysis and electronic perturbation catalysis for synthesis192US 6,048,690 ANanogen, Inc. · 2000
- Deoxyribonucleic acid(DNA) optical storage using non-radiative energy transfer between a donor group, an acceptor group and a quencher group164US 5,787,032 ANanogen, Inc. · 1998
- Optical recording medium, data recording method for rewritable-type phase change type optical disc, data erase method for rewritable compact disc, data erase method for rewritable phase change type recording medium, read only data erase method, and recording/readout apparatus121US 6,671,249 B2Mitsubishi Chemical Corporation · 2003
- Optical information recording medium comprising a first layer having a phase that is reversibly changeable and a second information layer having a phase that is reversibly changeable101US 6,456,584 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Multilayer optical record94US 4,097,895 ARCA Corporation · 1978