G11B 23/30
Record carriers not specific to the method of recording or reproducing: with
Official title: with provision for auxiliary signals
G11B23/30 (Record carriers not specific to the method of recording or reproducing: with) appears on 439 US grants and 248 published applications in this corpus.
Search patents in G11B- Granted patents
- 439
- Published applications
- 248
- Assignees
- 153
- Inventors
- 693
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 9 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 12 | 0 |
| 1996 | 13 | 0 |
| 1997 | 11 | 0 |
| 1998 | 24 | 0 |
| 1999 | 20 | 0 |
| 2000 | 31 | 0 |
| 2001 | 26 | 4 |
| 2002 | 23 | 28 |
| 2003 | 20 | 21 |
| 2004 | 13 | 17 |
| 2005 | 9 | 34 |
| 2006 | 11 | 28 |
| 2007 | 14 | 17 |
| 2008 | 14 | 20 |
| 2009 | 16 | 13 |
| 2010 | 14 | 8 |
| 2011 | 16 | 4 |
| 2012 | 8 | 5 |
| 2013 | 3 | 5 |
| 2014 | 3 | 2 |
| 2015 | 2 | 0 |
| 2016 | 2 | 1 |
| 2017 | 2 | 2 |
| 2018 | 4 | 2 |
| 2019 | 3 | 0 |
| 2020 | 0 | 1 |
| 2021 | 4 | 12 |
| 2022 | 5 | 7 |
| 2023 | 10 | 14 |
| 2024 | 8 | 2 |
| 2025 | 4 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic tape drive, magnetic tape cartridge, and information management method26 May 2026US 12,640,167 B2FUJIFILM Corporation
- Magnetic tape control system and magnetic tape control device3 Feb 2026US 12,542,152 B2FUJIFILM Corporation
- Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive6 Jan 2026US 12,518,779 B2FUJIFILM Corporation
- Noncontact communication device, magnetic tape drive, noncontact communication system, method for operating noncontact communication device, and program25 Nov 2025US 12,482,496 B2FUJIFILM Corporation
- Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive8 Apr 2025US 12,272,390 B2FUJIFILM Corporation
- Magnetic tape drive, magnetic tape cartridge, and information management method14 Aug 2025US 2025/0259649 A1FUJIFILM Corporation
- Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive14 Nov 2024US 2024/0379118 A1FUJIFILM Corporation
- Magnetic recording medium and cartridge16 May 2024US 2024/0161778 A1Sony Group Corporation
- Magnetic recording medium26 Oct 2023US 2023/0343365 A1Sony Group Corporation
- Magnetic tape cartridge, magnetic tape drive, magnetic tape system, and method of operating magnetic tape drive29 Jun 2023US 2023/0206948 A1FUJIFILM Corporation
Most cited
By later US patents
- Apparatus and method for tracking the playing of VCR programs447US 5,488,409 A1996
- Personal music device with a graphical display for contextual information262US 6,421,305 B1Sony Corporation · 2002
- Method for selectively playing back programs recorded on a video tape191US 5,621,579 AIndex Systems, Inc. · 1997
- Combination of VCR index and EPG181US 6,147,715 AIndex Systems, Inc. · 2000
- Presentation of media content from multiple media sources179US 7,178,106 B2Sonic Solutions, a California corporation · 2007