G11B 23/037
Single reels or spools
G11B23/037 (Single reels or spools) appears on 257 US grants and 132 published applications in this corpus.
Search patents in G11B- Granted patents
- 257
- Published applications
- 132
- Assignees
- 68
- Inventors
- 358
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 11 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 7 |
| 2002 | 10 | 7 |
| 2003 | 6 | 11 |
| 2004 | 12 | 8 |
| 2005 | 4 | 6 |
| 2006 | 9 | 8 |
| 2007 | 8 | 12 |
| 2008 | 8 | 6 |
| 2009 | 2 | 9 |
| 2010 | 4 | 0 |
| 2011 | 3 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 5 |
| 2014 | 1 | 5 |
| 2015 | 2 | 5 |
| 2016 | 4 | 1 |
| 2017 | 3 | 2 |
| 2018 | 3 | 1 |
| 2019 | 2 | 0 |
| 2020 | 1 | 3 |
| 2021 | 2 | 3 |
| 2022 | 4 | 5 |
| 2023 | 5 | 11 |
| 2024 | 7 | 3 |
| 2025 | 4 | 4 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic recording tape medium with conductive particle configuration and cartridge8 Sep 2026US 12,731,609 B2Sony Group Corporation
- Providing a stiffener in a tape reel hub to reduce tape dimensional stability errors19 May 2026US 12,633,311 B2International Business Machines Corporation
- Magnetic tape control system and magnetic tape control device3 Feb 2026US 12,542,152 B2FUJIFILM Corporation
- Magnetic recording medium and cartridge16 Sep 2025US 12,417,784 B2Sony Group Corporation
- Magnetic tape apparatus, magnetic tape, and magnetic tape cartridge29 Jul 2025US 12,374,368 B2FUJIFILM Corporation
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus27 Aug 2026US 2026/0253611 A1FUJIFILM Corporation
- Magnetic recording medium13 Aug 2026US 2026/0237402 A1Sony Group Corporation
- Magnetic recording medium and cartridge30 Jul 2026US 2026/0221156 A1Sony Group Corporation
- Magnetic recording medium and cartridge30 Jul 2026US 2026/0221157 A1Sony Group Corporation
- Magnetic recording medium and cartridge23 Jul 2026US 2026/0212886 A1Sony Group Corporation
Most cited
By later US patents
- Variable directional microphone system40US 4,399,327 AVictor Company of Japan, Ltd. · 1983
- Component reel with latching detents to lock flanges to hub39US 5,114,089 A1992
- Reel of magnetic tape cartridge33US 6,568,619 B1Fuji Photo Film Co., Ltd. · 2003
- Convertible reel assembly32US 4,726,534 AAdvantek, Inc. · 1988
- Reel of plastics material for magnetic tape25US 4,723,731 AGefitec S.A. · 1988