G11B 20/00108
Wherein original, non-rewritable record carriers are recognised by trying to erase recorded
Official title: {wherein original, non-rewritable record carriers are recognised by trying to erase recorded data}
G11B20/00108 (Wherein original, non-rewritable record carriers are recognised by trying to erase recorded) appears on 9 US grants and 6 published applications in this corpus.
Search patents in G11B- Granted patents
- 9
- Published applications
- 6
- Assignees
- 7
- Inventors
- 19
- Latest grant
- 10 Sep 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus and method for recording and erasing user data on a recordable optical disc10 Sep 2019US 10,410,671 B2Panasonic Intellectual Property Management Co., Ltd.
- Limited use memory device with associated information23 Feb 2010US 7,668,069 B2Searete LLC
- Recording method, recording apparatus, reproducing method and reproducing apparatus3 Feb 2009US 7,486,599 B2Sony Corporation
- Recording medium, recording-medium management method, and recording-medium management system10 Apr 2007US 7,203,969 B2Kabushiki Kaisha Toshiba
- Recording method, recording apparatus, reproducing method and reproducing apparatus6 Feb 2007US 7,173,889 B2Sony Corporation
- Information recording apparatus and data erasure method28 Feb 2019US 2019/0066726 A1Panasonic Intellectual Property Management Co., Ltd.
- Non-authentic disc deactivation method21 Nov 2013US 2013/0312121 A1
- Recording method, recording apparatus, reproducing method and reproducing apparatus10 May 2007US 2007/0107064 A1Sony Corporation
- Limited use memory device with associated information9 Nov 2006US 2006/0253692 A1Searete LLC, a limited liability corporation of the State of Delaware
- Recording medium, recording-medium management method, and recording-medium management system3 Jun 2004US 2004/0107355 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Method and apparatus for preventing copying of an optical disk85US 4,975,898 ASony Corporation · 1990
- Information recording medium and method for recording and reproducing information to a medium to prevent unauthorized copying51US 5,886,979 AFujitsu Limited · 1999
- Method for protecting data recorded on a partial read-only memory (ROM) medium from unauthorized copying19US 5,654,950 ANEC Corporation · 1997
- Recording medium, recording-medium management method, and recording-medium management system7US 7,203,969 B2Kabushiki Kaisha Toshiba · 2007
- Method for protecting data recorded on a partial read-only memory (ROM) medium from unauthorized copying4US 5,790,499 ANEC Corporation · 1998