G11B 7/1378
Separate aberration correction lenses
Official title: Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
G11B7/1378 (Separate aberration correction lenses) appears on 534 US grants and 503 published applications in this corpus.
Search patents in G11B- Granted patents
- 534
- Published applications
- 503
- Assignees
- 149
- Inventors
- 778
- Latest grant
- 29 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 12 | 0 |
| 1998 | 20 | 0 |
| 1999 | 14 | 0 |
| 2000 | 16 | 0 |
| 2001 | 7 | 6 |
| 2002 | 12 | 35 |
| 2003 | 14 | 40 |
| 2004 | 30 | 55 |
| 2005 | 32 | 69 |
| 2006 | 39 | 49 |
| 2007 | 40 | 52 |
| 2008 | 49 | 57 |
| 2009 | 26 | 48 |
| 2010 | 51 | 34 |
| 2011 | 46 | 11 |
| 2012 | 39 | 24 |
| 2013 | 23 | 11 |
| 2014 | 3 | 5 |
| 2015 | 2 | 0 |
| 2016 | 4 | 3 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical information processing device29 Dec 2020US 10,878,847 B2Panasonic Intellectual Property Management Co., Ltd.
- Holographic data storage system11 Apr 2017US 9,620,164 B2LG Electronics Inc.
- Optical disc device and spherical aberration error signal detection method6 Dec 2016US 9,514,778 B2Sony Corporation
- Optical information processing apparatus and optical information processing method, and adjustment device, adjustment method, and adjustment program for optical information processing apparatus27 Sep 2016US 9,454,987 B2Mitsubishi Electric Corporation
- System and method for dual-beam recording and readout of multilayered optical data storage media21 Jun 2016US 9,373,351 B2General Electric Comany
- Optical system for holographic storage and design method for fresnel lens and meta lens thereof16 Feb 2023US 2023/0047873 A1Amethystum Storage Technology Co., Ltd.
- Holographic storage optical system and beam calibrating method thereof22 Dec 2022US 2022/0404766 A1Amethystum Storage Technology Co., Ltd.
- Optical disk, method of manufacturing same, optical information device, and information processing method21 Oct 2021US 2021/0327466 A1Panasonic Intellectual Property Management Co., Ltd.
- Optical information processing device7 Nov 2019US 2019/0341072 A1Panasonic Intellectual Property Management Co., Ltd.
- Optical disc device and spherical aberration error signal detection method4 Aug 2016US 2016/0225400 A1Sony Corporation
Most cited
By later US patents
- Variable focal length lens panel and fabricating the same124US 6,191,881 B1Citizen Watch Co., Ltd. · 2001
- Multiple data surface optical data storage system118US 5,202,875 AInternational Business Machines Corporation · 1993
- Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses95US 5,235,581 AMatsushita Electric Industrial Co., Ltd. · 1993
- Apparatus for adjustable correction of spherical aberration58US 5,157,555 AGeneral Electric Company · 1992
- Compact optical head54US 5,331,622 AApplied Magnetics Corporation · 1994