G11B 5/64
Comprising only the magnetic material without bonding agent
Official title: comprising only the magnetic material without bonding agent
G11B5/64 (Comprising only the magnetic material without bonding agent) appears on 1,807 US grants and 1,626 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,807
- Published applications
- 1,626
- Assignees
- 292
- Inventors
- 2,218
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 16 | 0 |
| 1984 | 8 | 0 |
| 1985 | 26 | 0 |
| 1986 | 24 | 0 |
| 1987 | 33 | 0 |
| 1988 | 26 | 0 |
| 1989 | 32 | 0 |
| 1990 | 14 | 0 |
| 1991 | 24 | 0 |
| 1992 | 19 | 0 |
| 1993 | 21 | 0 |
| 1994 | 14 | 0 |
| 1995 | 19 | 0 |
| 1996 | 34 | 0 |
| 1997 | 30 | 0 |
| 1998 | 57 | 0 |
| 1999 | 47 | 0 |
| 2000 | 36 | 0 |
| 2001 | 38 | 26 |
| 2002 | 43 | 89 |
| 2003 | 85 | 105 |
| 2004 | 95 | 140 |
| 2005 | 75 | 140 |
| 2006 | 71 | 121 |
| 2007 | 70 | 100 |
| 2008 | 49 | 108 |
| 2009 | 66 | 104 |
| 2010 | 58 | 125 |
| 2011 | 84 | 67 |
| 2012 | 57 | 69 |
| 2013 | 67 | 58 |
| 2014 | 79 | 57 |
| 2015 | 71 | 59 |
| 2016 | 48 | 38 |
| 2017 | 41 | 28 |
| 2018 | 38 | 28 |
| 2019 | 24 | 23 |
| 2020 | 29 | 18 |
| 2021 | 25 | 28 |
| 2022 | 24 | 20 |
| 2023 | 23 | 24 |
| 2024 | 20 | 24 |
| 2025 | 22 | 15 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic recording media with high magnetization absorption layer and gradient segregant structure22 Sep 2026US 12,744,059 B1Western Digital Technologies, Inc.
- Magnetic layer of a magnetic recording disk, and related magnetic recording disks28 Jul 2026US 12,694,900 B2Seagate Technology LLC
- Tri-level magnetic recording of bits21 Apr 2026US 12,609,135 B1Seagate Technology LLC
- Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium and glass spacer for magnetic recording and reproducing apparatus17 Mar 2026US 12,579,997 B2Hoya Corporation
- Magnetic recording disk with high internal stress to reduce disk deflections from shock forces and methods for use with the disk17 Feb 2026US 12,555,601 B2Western Digital Technologies, Inc.
- Non-aligned exchange-de-coupled dual-layer system for increased areal-density8 Oct 2026US 2026/0311723 A1Seagate Technology LLC
- Magnetic recording and reproducing apparatus1 Oct 2026US 2026/0301767 A1Resonac Hard Disk Corporation
- Magnetic recording media with high magnetization absorption layer and gradient segregant structure24 Sep 2026US 2026/0290393 A1Western Digital Technologies, Inc.
- Magnetic recording medium with magnetic capping layer containing carbon and a magnetic recording apparatus for use therewith20 Aug 2026US 2026/0245586 A1Western Digital Technologies, Inc.
- Magnetic recording medium with amorphous metallic alloy overcoat and magnetic recording apparatus for use therewith6 Aug 2026US 2026/0229251 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrier141US 6,347,016 B1Matsushita Electric Industrial Co., Ltd. · 2002
- Magnetic recording medium138US 4,425,404 AMatsushita Electric Industrial Co., Ltd. · 1984
- Manufacture method of high coercivity FePt-Si3N4 granular composite thin films127US 6,183,606 B2National Science Council of Republic of China · 2001
- Magnetic recording media and magnetic recording read-back system which uses such media113US 5,851,643 AHitachi, Ltd. · 1998
- Perpendicular magnetic discrete track recording disk111US 7,147,790 B2Komag, Inc. · 2006