G11B 11/10565
Marks for track change
Official title: {Marks for track change, e.g. prepits, gray codes}
G11B11/10565 (Marks for track change) appears on 117 US grants and 39 published applications in this corpus.
Search patents in G11B- Granted patents
- 117
- Published applications
- 39
- Assignees
- 28
- Inventors
- 176
- Latest grant
- 15 Feb 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 13 | 4 |
| 2002 | 11 | 7 |
| 2003 | 5 | 6 |
| 2004 | 8 | 6 |
| 2005 | 3 | 4 |
| 2006 | 6 | 3 |
| 2007 | 2 | 1 |
| 2008 | 2 | 1 |
| 2009 | 2 | 6 |
| 2010 | 7 | 1 |
| 2011 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof15 Feb 2011US 7,887,939 B2Victor Company of Japan, Ltd.
- Recording medium, information recording and reproducing method, and recording and reproducing apparatus16 Nov 2010US 7,835,258 B2Hitachi, Ltd.
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof4 May 2010US 7,709,107 B2Victor Company of Japan, Ltd.
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof4 May 2010US 7,709,108 B2Victor Company of Japan, Ltd.
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof4 May 2010US 7,709,109 B2Victor Company of Japan, Ltd.
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof1 Jul 2010US 2010/0165809 A1Victor Company of Japan, Ltd.
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof31 Dec 2009US 2009/0323492 A1Victor Company of Japan, Ltd.
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof22 Oct 2009US 2009/0262626 A1Victor Company of Japan, Ltd.
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof22 Oct 2009US 2009/0262627 A1Victor Company of Japan, Ltd.
- Information recording medium, and apparatuses for reproducing, recording, and recording and reproducing thereof, and methods for reproducing, recording, and recording and reproducing thereof27 Aug 2009US 2009/0213714 A1Victor Company of Japan, Ltd.
Most cited
By later US patents
- Optical disk136US 5,383,176 ASharp Kabushiki Kaisha · 1995
- Optical disk recording and reproducing apparatus with data recorded on wobbled grooves and lands112US 5,537,373 AKabushiki Kaisha Kenwood · 1996
- Apparatus and record carrier for optical disc memory with correction pattern and master disc cutting apparatus97US 4,949,331 AHitachi, Ltd. · 1990
- Super resolution information reproduction by tracking address information in normal resolution93US 5,448,552 APioneer Electronic Corporation · 1995
- Optical disk having wobbled information shared between tracks60US 5,805,565 AHitachi, Ltd. · 1998