G11B 15/04
Preventing, inhibiting, or warning against accidental erasing or double recording
Official title: Preventing, inhibiting, or warning against accidental erasing or double recording (G11B15/05 takes precedence)
G11B15/04 (Preventing, inhibiting, or warning against accidental erasing or double recording) appears on 123 US grants and 40 published applications in this corpus.
Search patents in G11B- Granted patents
- 123
- Published applications
- 40
- Assignees
- 47
- Inventors
- 224
- Latest grant
- 2 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 4 |
| 2003 | 2 | 6 |
| 2004 | 2 | 6 |
| 2005 | 5 | 5 |
| 2006 | 8 | 2 |
| 2007 | 5 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 4 |
| 2012 | 1 | 3 |
| 2013 | 4 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 3 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Automatic implementation of a physical barrier to protect removable storage media access2 Jul 2024US 12,027,182 B2Quantum Corporation
- Noncontact communication medium, magnetic tape cartridge, method for operating noncontact communication medium, and program2 Apr 2024US 11,948,032 B2FUJIFILM Corporation
- Automatic implementation of a physical barrier to protect removable storage media access14 Mar 2023US 11,605,401 B2Quantum Corporation
- System and method for write protecting portions of magnetic tape storage media6 Jul 2021US 11,056,144 B2Oracle International Corporation
- System and method for write protecting portions of magnetic tape storage media16 Apr 2019US 10,262,686 B2Oracle International Corporation
- Automatic implementation of a physical barrier to protect removable storage media access6 Jul 2023US 2023/0215463 A1Quantum Corporation
- Noncontact communication medium, magnetic tape cartridge, method for operating noncontact communication medium, and program16 Mar 2023US 2023/0080645 A1FUJIFILM Corporation
- Automatic implementation of a physical barrier to protect removable storage media access4 Nov 2021US 2021/0343313 A1Quantum Corporation
- System and method for write protecting portions of magnetic tape storage media1 Aug 2019US 2019/0237103 A1Oracle International Corporation
- System and method for write protecting portions of tape storage media29 Dec 2016US 2016/0379678 A1Oracle International Corporation
Most cited
By later US patents
- Apparatus and method for tracking the playing of VCR programs447US 5,488,409 A1996
- Servo method and apparatus for very high track density magnetic recording by adjusting head position based on servo information read from adjacent track102US 5,371,638 ADigital Equipment Corporation · 1994
- Video signal recording apparatus with rerecording inhibit circuit91US 5,510,900 ASony Corporation · 1996
- Linear tape write servo using embedded azimuth servo blocks74US 5,523,904 AQuantum Corporation · 1996
- Dynamic control of magnetic tape drive74US 5,892,633 AExabyte Corporation · 1999