G11B 7/13927
During transducing
Official title: {during transducing, e.g. to correct for variation of the spherical aberration due to disc tilt or irregularities in the cover layer thickness}
G11B7/13927 (During transducing) appears on 306 US grants and 346 published applications in this corpus.
Search patents in G11B- Granted patents
- 306
- Published applications
- 346
- Assignees
- 75
- Inventors
- 441
- Latest grant
- 13 Aug 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 8 |
| 2002 | 16 | 28 |
| 2003 | 10 | 29 |
| 2004 | 26 | 39 |
| 2005 | 20 | 51 |
| 2006 | 33 | 38 |
| 2007 | 41 | 42 |
| 2008 | 31 | 36 |
| 2009 | 20 | 20 |
| 2010 | 16 | 16 |
| 2011 | 25 | 11 |
| 2012 | 19 | 6 |
| 2013 | 7 | 6 |
| 2014 | 2 | 1 |
| 2015 | 6 | 5 |
| 2016 | 4 | 6 |
| 2017 | 4 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Reproducing device13 Aug 2019US 10,381,039 B2Memory-Tech Holdings Inc.
- Reproducing device29 Jan 2019US 10,192,581 B2Memory-Tech Holdings Inc.
- Reproducing device22 May 2018US 9,978,416 B2Memory-Tech Holdings Inc.
- Reproducing device31 Oct 2017US 9,805,761 B2Memory-Tech Holdings Inc.
- Recording/reproducing apparatus6 Jun 2017US 9,672,860 B2Kabushiki Kaisha Toshiba
- Reproducing device2 May 2019US 2019/0130941 A1Memory-Tech Holdings Inc.
- Reproducing device23 Aug 2018US 2018/0240498 A1Memory-Tech Holdings Inc.
- Reproducing device18 Jan 2018US 2018/0018998 A1Memory-Tech Holdings Inc.
- Reproducing device29 Jun 2017US 2017/0186462 A1Memory-Tech Holdings Inc.
- Optical disc apparatus and control method thereof29 Sep 2016US 2016/0284376 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Variable mirror and information apparatus comprising variable mirror54US 6,952,304 B2Matsushita Electric Industrial Co., Ltd. · 2005
- Optical disk pickup device with focusing correction by electrostriction42US 5,513,158 ASony Corporation · 1996
- Wave-front aberration compensation unit, wave-front aberration compensation device, and optical pickup39US 6,078,554 APioneer Electronic Corporation · 2000
- Aberration detection device and optical information recording and reproducing apparatus39US 6,430,137 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Optical pick-up device37US 5,712,842 ASony Corporation · 1998