G11B 7/125
Optical beam sources therefor
Official title: Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
G11B7/125 (Optical beam sources therefor) appears on 4,200 US grants and 3,757 published applications in this corpus.
Search patents in G11B- Granted patents
- 4,200
- Published applications
- 3,757
- Assignees
- 522
- Inventors
- 4,980
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 18 | 0 |
| 1986 | 16 | 0 |
| 1987 | 23 | 0 |
| 1988 | 19 | 0 |
| 1989 | 31 | 0 |
| 1990 | 26 | 0 |
| 1991 | 41 | 0 |
| 1992 | 51 | 0 |
| 1993 | 63 | 0 |
| 1994 | 54 | 0 |
| 1995 | 56 | 0 |
| 1996 | 110 | 0 |
| 1997 | 103 | 0 |
| 1998 | 130 | 0 |
| 1999 | 104 | 0 |
| 2000 | 129 | 0 |
| 2001 | 126 | 100 |
| 2002 | 176 | 295 |
| 2003 | 167 | 261 |
| 2004 | 188 | 320 |
| 2005 | 155 | 497 |
| 2006 | 272 | 443 |
| 2007 | 292 | 364 |
| 2008 | 256 | 390 |
| 2009 | 256 | 309 |
| 2010 | 300 | 268 |
| 2011 | 314 | 155 |
| 2012 | 217 | 96 |
| 2013 | 142 | 72 |
| 2014 | 69 | 39 |
| 2015 | 36 | 30 |
| 2016 | 29 | 23 |
| 2017 | 32 | 13 |
| 2018 | 37 | 14 |
| 2019 | 23 | 11 |
| 2020 | 16 | 11 |
| 2021 | 13 | 16 |
| 2022 | 16 | 4 |
| 2023 | 5 | 9 |
| 2024 | 17 | 10 |
| 2025 | 12 | 5 |
| 2026 | 7 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Phase-modulated optical data storage8 Sep 2026US 12,731,610 B2Microsoft Technology Licensing, LLC
- Reading voxels in an optical storage medium using off-axis lighting28 Jul 2026US 12,694,901 B1Microsoft Technology Licensing, LLC
- Laser diode for heat-assisted magnetic recording, and related apparatuses, devices, systems, and methods23 Jun 2026US 12,664,999 B1Seagate Technology LLC
- Laser power monitoring in hard disk drives16 Jun 2026US 12,658,210 B1Avago Technologies International Sales Pte. Limited
- Data recording on ceramic material12 May 2026US 12,626,722 B2Ceramic Data Solutions GmbH
- Compact Writing and Reading Head for Hyper Speed Data Recording on Ceramic Material28 May 2026US 2026/0148751 A1Ceramic Data Solutions GmbH
- Systems for and methods for mode hop detection in heat assisted magnetic recording12 Mar 2026US 2026/0073943 A1Avago Technologies International Sales Pte. Limited
- Positive laser bias electrical control architecture for dark laser heating in heat assisted magnetic recording3 Jul 2025US 2025/0218462 A1Western Digital Technologies, Inc.
- Hybrid Digital and Analog Data Storage17 Apr 2025US 2025/0124952 A1Ceramic Data Solutions GmbH
- Method for encoding information by valley polarization in a material13 Mar 2025US 2025/0085575 A1Forschungsverbund Berlin E.V.
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