G11B 2220/237
Having exactly two recording layers
Official title: having exactly two recording layers
G11B2220/237 (Having exactly two recording layers) appears on 276 US grants and 320 published applications in this corpus.
Search patents in G11B- Granted patents
- 276
- Published applications
- 320
- Assignees
- 54
- Inventors
- 254
- Latest grant
- 24 May 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 4 |
| 2002 | 9 | 27 |
| 2003 | 18 | 8 |
| 2004 | 9 | 28 |
| 2005 | 9 | 31 |
| 2006 | 22 | 46 |
| 2007 | 24 | 69 |
| 2008 | 41 | 53 |
| 2009 | 30 | 26 |
| 2010 | 32 | 13 |
| 2011 | 23 | 6 |
| 2012 | 18 | 8 |
| 2013 | 9 | 0 |
| 2014 | 3 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Video data organization24 May 2016US 9,349,409 B1Amazon Technologies, Inc.
- Servo information recording method and magnetic storage apparatus15 Jul 2014US 8,780,488 B2Showa Denko K. K.
- Write-once information recording medium, information recording method, information recording device, information reproduction method, information reproduction device and method for manufacturing information recording medium20 May 2014US 8,732,395 B2Panasonic Corporation
- Embedded virtual media1 Apr 2014US 8,687,476 B2Microsoft Corporation
- Recording methods and devices for recording information on dual layer recordable disks10 Sep 2013US 8,531,929 B2Koninklijke Philips N. V.
- Servo information recording method and magnetic storage apparatus15 May 2014US 2014/0133047 A1Showa Denko K. K.
- Information recording medium with prepit and recording/reproducing apparatus and method using the same27 Dec 2012US 2012/0327753 A1Samsung Electronics Co., Ltd.
- Information recording medium, recording/reproducing device, recording/reproducing device control method, recording/reproducing device control program, and computer readable recording medium27 Dec 2012US 2012/0327755 A1Sharp Kabushiki Kaisha
- Method of and apparatus for recording data on write-once disc, method of and apparatus for reproducing data from write-once disc, and write-once disc therefor12 Jul 2012US 2012/0176878 A1Samsung Electronics Co., Ltd.
- Recording methods and devices for recording information on dual layer recordable disks21 Jun 2012US 2012/0155234 A1Koninklijke Philips Electronics N. V.
Most cited
By later US patents
- Method and an apparatus for encoding a bitstream with plural possible searching reproduction paths information253US 5,854,873 AMatsushita Electric Industrial Co., Ltd. · 1998
- Method and an apparatus for interleaving bitstream to record thereof on a recording medium, and reproducing the interleaved bitstream therefrom223US 5,784,528 AMatsushita Electric Industrial Co., Ltd. · 1998
- Information recording disk with management areas182US 5,878,020 AKabushiki Kaisha Toshiba · 1999
- Recording medium with format for preventing unauthorized copying, and reproducing apparatus for same144US 6,072,759 ASony Corporation · 2000
- Information recording medium, method for recording information, and method for reproduction information142US 6,385,389 B1Kabushiki Kaisha Toshiba · 2002