G11B 7/24076
Cross sectional shape in the radial direction of a disc
Official title: Cross sectional shape in the radial direction of a disc, e.g. asymmetrical cross sectional shape
G11B7/24076 (Cross sectional shape in the radial direction of a disc) appears on 117 US grants and 90 published applications in this corpus.
Search patents in G11B- Granted patents
- 117
- Published applications
- 90
- Assignees
- 41
- Inventors
- 202
- Latest grant
- 12 Feb 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 4 |
| 2002 | 3 | 9 |
| 2003 | 2 | 8 |
| 2004 | 10 | 6 |
| 2005 | 5 | 16 |
| 2006 | 12 | 11 |
| 2007 | 8 | 8 |
| 2008 | 9 | 11 |
| 2009 | 11 | 3 |
| 2010 | 2 | 3 |
| 2011 | 4 | 3 |
| 2012 | 5 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical recording medium having a plurality of recording layers capable of suppressing off-track12 Feb 2019US 10,204,652 B2Sony Corporation
- Optical recording medium having a plurality of recording layers capable of suppressing off-track6 Mar 2018US 9,911,451 B2Sony Corporation
- Anti-piracy feature for optical discs7 Mar 2017US 9,589,590 B2Microsoft Technology Licensing, LLC
- Optical information recording medium14 Jul 2015US 9,082,430 B2Sony Corporation
- Write-once type information storage medium (disk structure of recording type information storage medium having structure in which recording layer formed on transparent susbstrate is defined as inside), and information reproducing method or information recording method as well as storage medium manufacturing6 May 2014US 8,717,858 B2Kabushiki Kaisha Toshiba
- Optical recording medium12 Jul 2018US 2018/0197572 A1Sony Corporation
- Optical recording medium12 Jan 2017US 2017/0011767 A1Sony Corporation
- Anti-piracy feature for optical discs31 Mar 2016US 2016/0093324 A1Microsoft Corporation
- Optical information recording medium5 Feb 2015US 2015/0036473 A1Sony Corporation
- Write-once type information storage medium (disk structure of recording type information storage medium having structure in which recording layer formed on transparent susbstrate is defined as inside), and information reproducing method or information recording method as well as storage medium manufacturing2 Oct 2014US 2014/0293767 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Magneto-optical disk having lands and grooves for recording information54US 5,430,706 ATDK Corporation · 1995
- Optical disk having narrow and wide guide grooves45US 4,947,384 APioneer Electronic Corporation · 1990
- Optical record carrier and apparatus for reading it43US 4,310,916 AU. S. Philips Corporation · 1982
- Record carrier containing information in an optically readable radiation reflecting information structure41US 4,209,804 AU. S. Philips Corporation · 1980
- Optical disc-like recoding medium and manufacturing method thereof39US 5,204,852 AVictor Company of Japan, Ltd. · 1993