G11B 23/0303
Write protect features with a sliding part
Official title: {Write protect features with a sliding part}
G11B23/0303 (Write protect features with a sliding part) appears on 76 US grants and 16 published applications in this corpus.
Search patents in G11B- Granted patents
- 76
- Published applications
- 16
- Assignees
- 30
- Inventors
- 126
- Latest grant
- 19 May 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 1 |
| 2003 | 2 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 3 |
| 2006 | 1 | 4 |
| 2007 | 4 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Remotely controlling a magnetic tape cartridge19 May 2020US 10,658,000 B2International Business Machines Corporation
- Remotely controlling a magnetic tape cartridge24 Sep 2019US 10,424,331 B1International Business Machines Corporation
- Data storage cartridge with optical waveguide15 Nov 2011US 8,060,893 B2Tandberg Data Holdings S.A.R.L.
- Portable auxiliary storage device11 Oct 2011US 8,037,269 B2Panasonic Corporation
- Rotary information device for removable media24 Feb 2009US 7,496,935 B2International Business Machines Corporation
- Remotely controlling a magnetic tape cartridge5 Dec 2019US 2019/0371361 A1International Business Machines Corporation
- Cartridge system14 Jul 2011US 2011/0170255 A1Buffalo Inc.
- Electronic storage cartridge17 Dec 2009US 2009/0310253 A1ProStor Systems, Inc.
- Portable auxiliary storage device14 May 2009US 2009/0125683 A1Panasonic Corporation
- Disk Cartridge20 Dec 2007US 2007/0291413 A1Matsushita Electric Industrial Co., Ltd.
Most cited
By later US patents
- Data storage case having a write/protect assembly45US 5,041,923 ASony Corporation · 1991
- Disc cartridge having a shutter37US 5,272,693 ASony Corporation · 1993
- Disk cartridge with write protect mechanism32US 5,150,269 ASony Corporation · 1992
- Holographic storage media package30US 5,526,337 ATamarack Storage Devices · 1996
- Self-positioning write protect mechanism for a cartridge28US 4,805,061 AVerbatim Corporation · 1989