G11B 7/24021
Provided with a special shape or structure for centering or eccentricity prevention
Official title: provided with a special shape or structure for centering or eccentricity prevention, e.g. alignment
G11B7/24021 (Provided with a special shape or structure for centering or eccentricity prevention) appears on 9 US grants and 2 published applications in this corpus.
Search patents in G11B- Granted patents
- 9
- Published applications
- 2
- Assignees
- 7
- Inventors
- 26
- Latest grant
- 14 Dec 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical recording medium and method of manufacturing the same14 Dec 2010US 7,852,537 B2Kabushiki Kaisha Toshiba
- Optical disc manufacturing method28 Dec 1993US 5,273,598 AHitachi Maxell, Ltd.
- Optical disk31 Dec 1991US 5,077,120 APioneer Electronic Corporation
- Method of manufacturing an optically readable disc record and disc record manufactured in accordance with the method3 Jan 1989US 4,795,511 AU. S. Philips Corporation
- Optical recording disc1 Dec 1987US 4,710,913 AHitachi Maxell, Ltd.
Most cited
By later US patents
- Method of fabrication of a protected optical disk and a disk obtained by said method30US 4,564,932 AThomson-CSF · 1986
- Optical recording disc29US 4,710,913 AHitachi Maxell, Ltd. · 1987
- Optical disk28US 5,077,120 APioneer Electronic Corporation · 1991
- Optical disc23US 4,503,531 APioneer Electronic Corporation · 1985
- Method of manufacturing an optically readable disc record and disc record manufactured in accordance with the method12US 4,795,511 AU. S. Philips Corporation · 1989