G11B 7/13925
Active
Official title: {active, e.g. controlled by electrical or mechanical means}
G11B7/13925 (Active) appears on 708 US grants and 838 published applications in this corpus.
Search patents in G11B- Granted patents
- 708
- Published applications
- 838
- Assignees
- 116
- Inventors
- 886
- Latest grant
- 13 Aug 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 14 | 0 |
| 2001 | 11 | 13 |
| 2002 | 22 | 49 |
| 2003 | 21 | 52 |
| 2004 | 43 | 61 |
| 2005 | 31 | 103 |
| 2006 | 55 | 92 |
| 2007 | 65 | 109 |
| 2008 | 68 | 114 |
| 2009 | 51 | 82 |
| 2010 | 81 | 51 |
| 2011 | 77 | 39 |
| 2012 | 56 | 28 |
| 2013 | 32 | 17 |
| 2014 | 9 | 10 |
| 2015 | 12 | 8 |
| 2016 | 8 | 6 |
| 2017 | 5 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
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
- 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
- Method of and apparatus for optically writing, reading and erasing a multi-plane record carrier, and record carrier suitable for said method and apparatus61US 5,408,453 AU. S. Philips Corporation · 1995