G11B 7/08511
With focus pull-in only
Official title: {with focus pull-in only}
G11B7/08511 (With focus pull-in only) appears on 515 US grants and 448 published applications in this corpus.
Search patents in G11B- Granted patents
- 515
- Published applications
- 448
- Assignees
- 131
- Inventors
- 772
- Latest grant
- 12 May 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 7 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 13 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 21 | 0 |
| 1999 | 20 | 0 |
| 2000 | 23 | 0 |
| 2001 | 29 | 16 |
| 2002 | 22 | 43 |
| 2003 | 20 | 31 |
| 2004 | 26 | 36 |
| 2005 | 10 | 38 |
| 2006 | 34 | 41 |
| 2007 | 30 | 41 |
| 2008 | 15 | 43 |
| 2009 | 20 | 41 |
| 2010 | 38 | 39 |
| 2011 | 38 | 33 |
| 2012 | 32 | 13 |
| 2013 | 29 | 6 |
| 2014 | 21 | 18 |
| 2015 | 6 | 4 |
| 2016 | 3 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical disc and optical disc device12 May 2020US 10,650,855 B2Mitsubishi Electric Corporation
- Optical disc and optical disc device13 Aug 2019US 10,381,037 B2Mitsubishi Electric Corporation
- Optical disc and optical disc device19 Jun 2018US 10,002,634 B2Mitsubishi Electric Corporation
- Optical disc and optical disc device22 Aug 2017US 9,741,387 B2Mitsubishi Electric Corporation
- Optical disc device and spherical aberration error signal detection method6 Dec 2016US 9,514,778 B2Sony Corporation
- Read head and methods for reading multilayer optical data storage media7 Nov 2024US 2024/0371068 A1Microsoft Technology Licensing, LLC
- Optical disc and optical disc device24 Oct 2019US 2019/0325909 A1Mitsubishi Electric Corporation
- Optical disc and optical disc device20 Sep 2018US 2018/0268857 A1Mitsubishi Electric Corporation
- Optical disc and optical disc device12 Oct 2017US 2017/0294204 A1Mitsubishi Electric Corporation
- Optical disc device and spherical aberration error signal detection method4 Aug 2016US 2016/0225400 A1Sony Corporation
Most cited
By later US patents
- Multi-layered recording disk and recording/reproducing system using the same155US 5,608,715 APioneer Electronic Corporation · 1997
- Compound objective lens having two focal points144US 5,446,565 AMatsushita Electric Industrial Co., Ltd. · 1995
- Multiple data surface optical data storage system with transmissive data surfaces96US 5,255,262 AInternational Business Machines Corporation · 1993
- Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal84US 5,729,511 ADiscovision Associates · 1998
- Servo control system for information storage device79US 5,875,158 ADiscovision Associates · 1999