G11B 5/712
Characterised by the surface treatment or coating of magnetic particles
Official title: characterised by the surface treatment or coating of magnetic particles
G11B5/712 (Characterised by the surface treatment or coating of magnetic particles) appears on 287 US grants and 176 published applications in this corpus.
Search patents in G11B- Granted patents
- 287
- Published applications
- 176
- Assignees
- 100
- Inventors
- 566
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 15 | 0 |
| 1988 | 9 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 8 | 0 |
| 1993 | 12 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 11 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 5 |
| 2003 | 4 | 10 |
| 2004 | 5 | 8 |
| 2005 | 6 | 11 |
| 2006 | 5 | 7 |
| 2007 | 5 | 9 |
| 2008 | 6 | 4 |
| 2009 | 1 | 16 |
| 2010 | 5 | 5 |
| 2011 | 3 | 4 |
| 2012 | 5 | 2 |
| 2013 | 4 | 6 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 1 |
| 2017 | 2 | 10 |
| 2018 | 4 | 14 |
| 2019 | 12 | 22 |
| 2020 | 17 | 12 |
| 2021 | 15 | 15 |
| 2022 | 19 | 5 |
| 2023 | 9 | 3 |
| 2024 | 3 | 0 |
| 2025 | 2 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic recording medium with platinum-doped co-bn capping layer and magnetic recording apparatus for use therewith30 Jun 2026US 12,670,930 B2Western Digital Technologies, Inc.
- Process for forming underlayer for tape media3 Mar 2026US 12,567,442 B2International Business Machines Corporation
- Magnetic tape cartridge and magnetic recording and reproducing device4 Feb 2025US 12,217,777 B2FUJIFILM Corporation
- Magnetic recording and reproducing device7 Jan 2025US 12,190,918 B2FUJIFILM Corporation
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus30 Jul 2024US 12,051,448 B2FUJIFILM Corporation
- Magnetic recording medium30 Jul 2026US 2026/0221154 A1Sony Group Corporation
- Magnetic recording medium and cartridge23 Jul 2026US 2026/0212886 A1Sony Group Corporation
- Magnetic recording medium with platinum-doped co-bn capping layer and magnetic recording apparatus for use therewith11 Dec 2025US 2025/0378850 A1Western Digital Technologies, Inc.
- Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus9 Nov 2023US 2023/0360671 A1FUJIFILM Corporation
- Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device14 Sep 2023US 2023/0290376 A1FUJIFILM Corporation
Most cited
By later US patents
- Carbon nanoencapsulates118US 5,547,748 ASRI International · 1996
- Magnetic tape having controlled surface properties of the magnetic layer and method of manufacturing the same108US 10,026,434 B2FUJIFILM Corporation · 2018
- Magnetic tape and magnetic tape device108US 9,779,772 B1FUJIFILM Corporation · 2017
- Encapsulated magnetic particles pigments and carbon black, compositions and methods related thereto77US 5,543,219 AA. B. Dick Company · 1996
- Encapsulated nanometer magnetic particles67US 6,045,925 AKansas State University Research Foundation · 2000