G11B 20/00594
Wherein the shape of recording marks is altered
Official title: {wherein the shape of recording marks is altered, e.g. the depth, width, or length of pits}
G11B20/00594 (Wherein the shape of recording marks is altered) appears on 129 US grants and 119 published applications in this corpus.
Search patents in G11B- Granted patents
- 129
- Published applications
- 119
- Assignees
- 30
- Inventors
- 142
- Latest grant
- 20 Oct 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 4 |
| 2002 | 2 | 6 |
| 2003 | 3 | 4 |
| 2004 | 6 | 13 |
| 2005 | 6 | 14 |
| 2006 | 24 | 23 |
| 2007 | 10 | 11 |
| 2008 | 14 | 23 |
| 2009 | 22 | 12 |
| 2010 | 3 | 3 |
| 2011 | 6 | 3 |
| 2012 | 5 | 0 |
| 2013 | 3 | 1 |
| 2014 | 2 | 1 |
| 2015 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Information recording device, information recording medium and information recording method20 Oct 2015US 9,165,595 B2Sharp Kabushiki Kaisha
- DVD replications system and method7 Jul 2015US 9,076,483 B2Thomson Licensing
- Counterfeit prevention for optical media18 Nov 2014US 8,893,308 B2Microsoft Corporation
- Information recording medium, method and apparatus for recording and reproducing information17 Jun 2014US 8,755,262 B2JVC KENWOOD Corporation
- Optical disk device, optical disk control method, and integrated circuit31 Dec 2013US 8,619,527 B2Panasonic Corporation
- Information recording device, information recording medium and information recording method19 Feb 2015US 2015/0049597 A1Sharp Kabushiki Kaisha
- Counterfeit prevention for optical media19 Jun 2014US 2014/0173763 A1Microsoft Corporation
- Information Recording Medium, Method and Apparatus for Recording and Reproducing Information2 May 2013US 2013/0107682 A1Victor Company of Japan, Ltd.
- Optical disk device, optical disk control method, and integrated circuit8 Dec 2011US 2011/0299371 A1Panasonic Corporation
- Information recording medium, and recording method and reproducing method thereof23 Jun 2011US 2011/0149699 A1Victor Company of Japan, Ltd.
Most cited
By later US patents
- Method and apparatus for preventing illegal copy or illegal installation of information of optical recording medium105US 5,881,038 AMatsushita Electric Industrial Co., Ltd. · 1999
- Recording and reproducing apparatus101US 5,473,584 AMatsushita Electric Industrial Co., Ltd. · 1995
- Optical disc and a recording and/or reproducing apparatus having copy-protection function98US 5,570,339 AVictor Company of Japan, Ltd. · 1996
- Optical disc, device for checking optical disc and device for recording information on optical disc89US 5,696,757 AVictor Company of Japan, Ltd. · 1997
- Method and apparatus for preventing illegal copy or illegal installation of information of optical recording medium89US 5,805,551 AMatsushita Electric Industrial Co., Ltd. · 1998