G11B 2220/232
Double-sided discs, i.e. two recording layers accessed from opposite sides
G11B2220/232 (Double-sided discs, i.e. two recording layers accessed from opposite sides) appears on 7 US grants and 9 published applications in this corpus.
Search patents in G11B- Granted patents
- 7
- Published applications
- 9
- Assignees
- 12
- Inventors
- 21
- Latest grant
- 30 Oct 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 2 | 0 |
By publication year.
Recent patents
- Optical disc and method for judging whether optical disc is placed reversely30 Oct 2018US 10,115,426 B1Lite-On Technology Corporation
- Optical disc and method for judging whether optical disc is placed reversely21 Aug 2018US 10,056,104 B1Lite-On Technology Corporation
- Optical disk apparatus, control method, control program and information storage medium12 Apr 2016US 9,311,950 B2Sony Computer Entertainment Inc.
- Disk-shaped recording medium and recording/reproducing device for disk-shaped recording medium10 Mar 2015US 8,976,639 B2Hitachi Consumer Electronics Co., Ltd.
- Single-sided pre-recorded dual-layer DVD disc functioning as a dual-sided pre-recorded DVD25 Dec 2012US 8,339,928 B2Opsec Security Group, Inc.
- Optical disk apparatus, control method, control program and information storage medium14 May 2015US 2015/0131421 A1Sony Computer Entertainment Inc.
- Disk-shaped recording medium and recording/reproducing device for disk-shaped recording medium10 Apr 2014US 2014/0098654 A1Hitachi Consumer Electronics Co., Ltd.
- Method and Apparatus for Capturing Encoded Signals on Label Surface14 Oct 2010US 2010/0260017 A1Quanta Storage Inc.
- Single-sided pre-recorded dual-layer dvd disc functioning as a dual-sided pre-recorded dvd11 Mar 2010US 2010/0061221 A1Opsec Security Group, Inc.
- Disc discrimination method and apparatus26 Mar 2009US 2009/0080305 A1LG Electronics Inc.
Most cited
By later US patents
- Robust data storage techniques for two-sided data storage tape2US 7,595,950 B2Imation Corp. · 2009
- Disc discrimination method and apparatus1US 7,948,838 B2LG Electronics Inc. · 2011
- Disk-shaped recording medium and recording/reproducing device for disk-shaped recording medium1US 8,976,639 B2Hitachi Consumer Electronics Co., Ltd. · 2015