G11B 5/62
Record carriers characterised by the selection of the material
G11B5/62 (Record carriers characterised by the selection of the material) appears on 7,134 US grants and 4,272 published applications in this corpus.
Search patents in G11B- Granted patents
- 7,134
- Published applications
- 4,272
- Assignees
- 792
- Inventors
- 7,344
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 42 | 0 |
| 1977 | 52 | 0 |
| 1978 | 59 | 0 |
| 1979 | 44 | 0 |
| 1980 | 49 | 0 |
| 1981 | 73 | 0 |
| 1982 | 71 | 0 |
| 1983 | 118 | 0 |
| 1984 | 104 | 0 |
| 1985 | 164 | 0 |
| 1986 | 176 | 0 |
| 1987 | 264 | 0 |
| 1988 | 211 | 0 |
| 1989 | 196 | 0 |
| 1990 | 118 | 0 |
| 1991 | 195 | 0 |
| 1992 | 190 | 0 |
| 1993 | 134 | 0 |
| 1994 | 125 | 0 |
| 1995 | 162 | 0 |
| 1996 | 218 | 0 |
| 1997 | 170 | 0 |
| 1998 | 204 | 0 |
| 1999 | 214 | 0 |
| 2000 | 219 | 0 |
| 2001 | 178 | 100 |
| 2002 | 157 | 231 |
| 2003 | 223 | 297 |
| 2004 | 263 | 324 |
| 2005 | 178 | 312 |
| 2006 | 168 | 254 |
| 2007 | 150 | 220 |
| 2008 | 119 | 194 |
| 2009 | 125 | 213 |
| 2010 | 118 | 222 |
| 2011 | 142 | 166 |
| 2012 | 115 | 154 |
| 2013 | 140 | 126 |
| 2014 | 157 | 135 |
| 2015 | 155 | 138 |
| 2016 | 109 | 93 |
| 2017 | 108 | 120 |
| 2018 | 103 | 133 |
| 2019 | 111 | 113 |
| 2020 | 121 | 123 |
| 2021 | 116 | 157 |
| 2022 | 171 | 99 |
| 2023 | 98 | 106 |
| 2024 | 85 | 102 |
| 2025 | 92 | 69 |
| 2026 | 60 | 71 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G11B 5/73Base layers , i.e. all non-magnetic layers lying under a lowermost magnetic2,875
- G11B 5/68Comprising one or more layers of magnetisable material homogeneously mixed with a2,871
- G11B 5/64Comprising only the magnetic material without bonding agent1,807
- G11B 5/72Protective coatings1,138
- G11B 5/633Of cinematographic films or slides with integral magnetic track62
- G11B 5/627Of leaders for magnetic tapes29
Recent patents
- Dispersed iron oxide magnetic powder slurry and method for producing same6 Oct 2026US 12,753,089 B2Dowa Electronics Materials Co., Ltd.
- High thermal stability lubricants6 Oct 2026US 12,753,360 B2Western Digital Technologies, Inc.
- Servo recording apparatus, servo write head, method of producing a magnetic tape, and magnetic tape6 Oct 2026US 12,755,759 B2Sony Group Corporation
- Waveguide multilayer core structure for use in heat assisted magnetic recording29 Sep 2026US 12,749,503 B1Seagate Technology LLC
- Magnetic recording media with high magnetization absorption layer and gradient segregant structure22 Sep 2026US 12,744,059 B1Western Digital Technologies, Inc.
- Non-aligned exchange-de-coupled dual-layer system for increased areal-density8 Oct 2026US 2026/0311723 A1Seagate Technology LLC
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium1 Oct 2026US 2026/0297447 A1Resonac Corporation
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium1 Oct 2026US 2026/0297452 A1Resonac Corporation
- Magnetic recording and reproducing apparatus1 Oct 2026US 2026/0301767 A1Resonac Hard Disk Corporation
- Hard disk drive (hdd) components formed of an alloy, and related hdds and methods1 Oct 2026US 2026/0301768 A1
Most cited
By later US patents
- Disc substrates for information recording discs and magnetic discs171US 6,214,429 B1Hoya Corporation · 2001
- Magnetic recording medium and method for producing the same168US 5,474,814 AFuji Photo Film Co., Ltd. · 1995
- Magnetic recording medium and method of manufacturing the same168US 8,535,817 B2FUJIFILM Corporation · 2013
- 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