G11B 5/70647
With a skin
Official title: {with a skin (G11B5/70657 takes precedence)}
G11B5/70647 (With a skin) appears on 47 US grants and 7 published applications in this corpus.
Search patents in G11B- Granted patents
- 47
- Published applications
- 7
- Assignees
- 31
- Inventors
- 112
- Latest grant
- 5 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 8 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 3 |
| 2022 | 1 | 0 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Tape media having synergistic magnetic recording layer and underlayer5 Sep 2023US 11,749,306 B2International Business Machines Corporation
- Magnetic recording medium having -iron oxide-containing particles7 Feb 2023US 11,574,651 B2Sony Corporation
- E-iron oxide powder, composition including the same, magnetic recording medium, and magnetic recording and reproducing device31 May 2022US 11,348,612 B2FUJIFILM Corporation
- Magnetic recording layer formulation for tape media26 Oct 2021US 11,158,339 B2International Business Machines Corporation
- Tape media having synergistic magnetic recording layer and underlayer19 Oct 2021US 11,152,027 B2International Business Machines Corporation
- Tape media having synergistic magnetic recording layer and underlayer16 Dec 2021US 2021/0390980 A1International Business Machines Corporation
- Magnetic recording layer formulation for tape media25 Feb 2021US 2021/0056990 A1International Business Machines Corporation
- Tape media having synergistic magnetic recording layer and underlayer25 Feb 2021US 2021/0056996 A1International Business Machines Corporation
- E-iron oxide powder, composition including the same, magnetic recording medium, and magnetic recording and reproducing device1 Oct 2020US 2020/0312359 A1FUJIFILM Corporation
- Magnetic recording medium28 Nov 2019US 2019/0362753 A1Sony Corporation
Most cited
By later US patents
- Process for the preparation of magnetic beads of vinylaromatic polymers61US 4,339,337 ARhone-Poulenc Industries · 1982
- Production of iron oxide pigments with improved resistance to oxidation38US 4,082,905 ABayer Aktiengesellschaft · 1978
- Magnetic iron oxides with improved orientability and a process for their production31US 3,931,025 ABayer Aktiengesellschaft · 1976
- Surface treatment method for magnetic particles30US 4,620,987 ARicoh Company, Ltd. · 1986
- Inorganic powders with improved dispersibility26US 4,810,524 ATDK Corporation · 1989