G11B 7/1392
Means for controlling the beam wavefront
Official title: Means for controlling the beam wavefront, e.g. for correction of aberration {(optical systems for aberration correction per se G02B27/00)}
G11B7/1392 (Means for controlling the beam wavefront) appears on 1,303 US grants and 1,427 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,303
- Published applications
- 1,427
- Assignees
- 175
- Inventors
- 1,287
- Latest grant
- 12 May 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 22 | 0 |
| 1998 | 21 | 0 |
| 1999 | 27 | 0 |
| 2000 | 38 | 0 |
| 2001 | 36 | 39 |
| 2002 | 56 | 89 |
| 2003 | 48 | 109 |
| 2004 | 79 | 130 |
| 2005 | 59 | 181 |
| 2006 | 102 | 152 |
| 2007 | 111 | 156 |
| 2008 | 116 | 163 |
| 2009 | 88 | 124 |
| 2010 | 127 | 80 |
| 2011 | 107 | 65 |
| 2012 | 93 | 54 |
| 2013 | 58 | 28 |
| 2014 | 32 | 31 |
| 2015 | 18 | 10 |
| 2016 | 11 | 6 |
| 2017 | 6 | 4 |
| 2018 | 4 | 4 |
| 2019 | 3 | 2 |
| 2020 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Optical disc and optical disc device12 May 2020US 10,650,855 B2Mitsubishi Electric Corporation
- Image display device and light guiding device with diffraction elements18 Feb 2020US 10,566,021 B2Seiko Epson Corporation
- Optical disc and optical disc device13 Aug 2019US 10,381,037 B2Mitsubishi Electric Corporation
- Reproducing device13 Aug 2019US 10,381,039 B2Memory-Tech Holdings Inc.
- Reproducing device29 Jan 2019US 10,192,581 B2Memory-Tech Holdings Inc.
- Optical disc and optical disc device24 Oct 2019US 2019/0325909 A1Mitsubishi Electric Corporation
- Reproducing device2 May 2019US 2019/0130941 A1Memory-Tech Holdings Inc.
- Optical disc and optical disc device20 Sep 2018US 2018/0268857 A1Mitsubishi Electric Corporation
- Reproducing device23 Aug 2018US 2018/0240498 A1Memory-Tech Holdings Inc.
- Image display device and light guiding device31 May 2018US 2018/0151194 A1Seiko Epson Corporation
Most cited
By later US patents
- Multiple data surface optical data storage system118US 5,202,875 AInternational Business Machines Corporation · 1993
- Multiple data surface optical data storage system with transmissive data surfaces96US 5,255,262 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
- Optical recording medium and optical recording/reproducing apparatus91US 5,097,464 AMatsushita Electric Industrial Co., Ltd. · 1992
- Object lens barrel, object lens barrel drive unit and optical information recording and reproducing unit91US 6,603,612 B2Sharp Kabushiki Kaisha · 2003