G11B 23/08728
Reels or cores
Official title: {Reels or cores; positioning of the reels in the cassette}
G11B23/08728 (Reels or cores) appears on 172 US grants and 45 published applications in this corpus.
Search patents in G11B- Granted patents
- 172
- Published applications
- 45
- Assignees
- 46
- Inventors
- 229
- Latest grant
- 2 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 12 | 0 |
| 1993 | 13 | 0 |
| 1994 | 11 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 5 | 5 |
| 2003 | 4 | 8 |
| 2004 | 7 | 6 |
| 2005 | 4 | 4 |
| 2006 | 5 | 2 |
| 2007 | 4 | 4 |
| 2008 | 4 | 5 |
| 2009 | 1 | 3 |
| 2010 | 1 | 0 |
| 2011 | 4 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 3 | 3 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Tape assemblies having flangeless reel configurations and single flange reel configurations for magnetic recording devices2 Jul 2024US 12,027,181 B2Western Digital Technologies, Inc.
- Hub, information processing apparatus, and program5 Mar 2024US 11,922,971 B2FUJIFILM Corporation
- Tape reel in which a bending elastic modulus of a first flange is smaller than that of a second flange, and tape cartridge24 Oct 2023US 11,798,592 B1FUJIFILM Corporation
- Magnetic tape cartridge and magnetic tape device12 Sep 2023US 11,756,584 B2FUJIFILM Corporation
- Tape assemblies having movable reel configurations for magnetic recording devices24 Jan 2023US 11,562,769 B1Western Digital Technologies, Inc.
- Tape cartridge, method of producing tape cartridge, and tape reel23 May 2024US 2024/0170020 A1Sony Group Corporation
- Tape Assemblies Having Flangeless Reel Configurations and Single Flange Reel Configurations For Magnetic Recording Devices30 Nov 2023US 2023/0386517 A1Western Digital Technologies, Inc.
- Tape reel and tape cartridge5 Oct 2023US 2023/0317113 A1FUJIFILM Corporation
- Hub, information processing apparatus, and program2 Feb 2023US 2023/0034328 A1FUJIFILM Corporation
- Magnetic tape cartridge and magnetic tape device30 Jun 2022US 2022/0208226 A1FUJIFILM Corporation
Most cited
By later US patents
- Tape cassette34US 4,012,011 AOlympus Optical Co., Ltd. · 1977
- Reel of magnetic tape cartridge33US 6,568,619 B1Fuji Photo Film Co., Ltd. · 2003
- Tape reel assembly for electrically encoding tape relative position information31US 5,243,485 ACapital Cities/ABC Video Enterprises · 1993
- Coined reel leaf spring for a video tape cassette28US 4,662,579 AShape Corp. · 1987
- Magnetic recording tape cassette25US 4,368,860 AHitachi Maxell, Ltd. · 1983