G11B 7/004
Recording, reproducing or erasing methods
Official title: Recording, reproducing or erasing methods; Read, write or erase circuits therefor {(magneto-optical systems G11B11/105)}
G11B7/004 (Recording, reproducing or erasing methods) appears on 7,246 US grants and 5,827 published applications in this corpus.
Search patents in G11B- Granted patents
- 7,246
- Published applications
- 5,827
- Assignees
- 829
- Inventors
- 6,926
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 11 | 0 |
| 1978 | 10 | 0 |
| 1979 | 11 | 0 |
| 1980 | 16 | 0 |
| 1981 | 20 | 0 |
| 1982 | 24 | 0 |
| 1983 | 17 | 0 |
| 1984 | 22 | 0 |
| 1985 | 30 | 0 |
| 1986 | 38 | 0 |
| 1987 | 68 | 0 |
| 1988 | 52 | 0 |
| 1989 | 101 | 0 |
| 1990 | 74 | 0 |
| 1991 | 102 | 0 |
| 1992 | 105 | 0 |
| 1993 | 119 | 0 |
| 1994 | 152 | 0 |
| 1995 | 167 | 0 |
| 1996 | 187 | 0 |
| 1997 | 234 | 0 |
| 1998 | 286 | 0 |
| 1999 | 232 | 0 |
| 2000 | 253 | 0 |
| 2001 | 260 | 148 |
| 2002 | 263 | 447 |
| 2003 | 281 | 404 |
| 2004 | 259 | 569 |
| 2005 | 247 | 669 |
| 2006 | 466 | 666 |
| 2007 | 405 | 627 |
| 2008 | 437 | 644 |
| 2009 | 415 | 464 |
| 2010 | 444 | 342 |
| 2011 | 414 | 185 |
| 2012 | 331 | 120 |
| 2013 | 200 | 93 |
| 2014 | 133 | 109 |
| 2015 | 64 | 55 |
| 2016 | 50 | 61 |
| 2017 | 44 | 42 |
| 2018 | 47 | 31 |
| 2019 | 24 | 18 |
| 2020 | 16 | 12 |
| 2021 | 15 | 31 |
| 2022 | 29 | 13 |
| 2023 | 11 | 23 |
| 2024 | 16 | 32 |
| 2025 | 19 | 15 |
| 2026 | 10 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magneto-optical Kerr effect reader for hard disk drives29 Sep 2026US 12,749,505 B1Seagate Technology LLC
- Phase-modulated optical data storage8 Sep 2026US 12,731,610 B2Microsoft Technology Licensing, LLC
- Non-volatile data storage medium and system25 Aug 2026US 12,718,843 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Writing and reading fluorescent optical storage media using Bessel beams18 Aug 2026US 12,711,988 B1Seagate Technology LLC
- Reduction of intersymbol interference by matching a voxel lattice constant and a point spread function shadow in optical systems14 Jul 2026US 12,682,929 B1Microsoft Technology Licensing, LLC
- Multi-beam writing apparatus and multi-beam writing method17 Sep 2026US 2026/0279395 A1NuFlare Technology, Inc.
- Super-resolution three-dimensional optical storage focusing servo device and method thereof23 Jul 2026US 2026/0212888 A1Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
- High-bandwidth memory-based holography processing apparatus and method18 Jun 2026US 2026/0171118 A1Electronics and Telecommunications Research Institute
- 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
Most cited
By later US patents
- Methods and apparatus for forward-directed optical scanning instruments1,184US 6,485,413 B1The General Hospital Corporation · 2002
- Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope1,079US 6,134,003 AMassachusetts Institute of Technology · 2000
- Fiber optic needle probes for optical coherence tomography imaging722US 6,564,087 B1Massachusetts Institute of Technology · 2003
- Fiber optic imaging endoscope interferometer with at least one faraday rotator710US 6,501,551 B1Massachusetts Institute of Technology · 2002
- Grating based phase control optical delay line535US 6,111,645 AMassachusetts Institute of Technology · 2000