G11B 5/708
Characterised by addition of non-magnetic particles to the layer
Official title: characterised by addition of non-magnetic particles to the layer
G11B5/708 (Characterised by addition of non-magnetic particles to the layer) appears on 420 US grants and 228 published applications in this corpus.
Search patents in G11B- Granted patents
- 420
- Published applications
- 228
- Assignees
- 56
- Inventors
- 583
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 13 | 0 |
| 1984 | 10 | 0 |
| 1985 | 11 | 0 |
| 1986 | 20 | 0 |
| 1987 | 24 | 0 |
| 1988 | 20 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 17 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 6 |
| 2002 | 6 | 6 |
| 2003 | 5 | 11 |
| 2004 | 11 | 10 |
| 2005 | 3 | 12 |
| 2006 | 4 | 4 |
| 2007 | 2 | 7 |
| 2008 | 2 | 0 |
| 2009 | 3 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 3 |
| 2014 | 0 | 3 |
| 2015 | 2 | 1 |
| 2016 | 2 | 4 |
| 2017 | 4 | 17 |
| 2018 | 7 | 16 |
| 2019 | 16 | 22 |
| 2020 | 25 | 21 |
| 2021 | 16 | 30 |
| 2022 | 40 | 3 |
| 2023 | 4 | 13 |
| 2024 | 7 | 17 |
| 2025 | 15 | 4 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic recording tape medium with conductive particle configuration and cartridge8 Sep 2026US 12,731,609 B2Sony Group Corporation
- Magnetic recording medium1 Sep 2026US 12,725,634 B2Sony Group Corporation
- Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium30 Jun 2026US 12,668,755 B2Resonac Corporation
- Magnetic recording medium including fatty ester and fatty acid ester7 Apr 2026US 12,597,441 B2Sony Group Corporation
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus25 Nov 2025US 12,482,493 B2FUJIFILM Corporation
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus10 Sep 2026US 2026/0268935 A1FUJIFILM 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 medium30 Jul 2026US 2026/0221154 A1Sony Group Corporation
- Magnetic recording medium and cartridge30 Jul 2026US 2026/0221156 A1Sony Group Corporation
Most cited
By later US patents
- Magnetic recording medium and method of manufacturing the same168US 8,535,817 B2FUJIFILM Corporation · 2013
- Longitudinal magnetic coated recording medium113US 4,746,569 AFujitsu Limited · 1988
- Composite magnetic recording media113US 9,105,294 B2Sony Corporation · 2015
- Magnetic recording medium110US 6,686,022 B2Fuji Photo Film Co., Ltd. · 2004
- Magnetic tape device and head tracking servo method109US 10,008,230 B1FUJIFILM Corporation · 2018