G11B 25/04
Apparatus characterised by the shape of record carrier employed but not specific
Official title: using flat record carriers, e.g. disc, card
G11B25/04 (Apparatus characterised by the shape of record carrier employed but not specific) appears on 2,513 US grants and 1,391 published applications in this corpus.
Search patents in G11B- Granted patents
- 2,513
- Published applications
- 1,391
- Assignees
- 428
- Inventors
- 3,776
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 9 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 16 | 0 |
| 1986 | 21 | 0 |
| 1987 | 28 | 0 |
| 1988 | 30 | 0 |
| 1989 | 36 | 0 |
| 1990 | 38 | 0 |
| 1991 | 37 | 0 |
| 1992 | 52 | 0 |
| 1993 | 64 | 0 |
| 1994 | 65 | 0 |
| 1995 | 78 | 0 |
| 1996 | 80 | 0 |
| 1997 | 90 | 0 |
| 1998 | 102 | 0 |
| 1999 | 116 | 0 |
| 2000 | 104 | 0 |
| 2001 | 112 | 52 |
| 2002 | 94 | 98 |
| 2003 | 100 | 110 |
| 2004 | 98 | 109 |
| 2005 | 96 | 123 |
| 2006 | 88 | 102 |
| 2007 | 62 | 69 |
| 2008 | 76 | 90 |
| 2009 | 69 | 63 |
| 2010 | 61 | 38 |
| 2011 | 57 | 49 |
| 2012 | 57 | 53 |
| 2013 | 71 | 61 |
| 2014 | 71 | 32 |
| 2015 | 44 | 30 |
| 2016 | 45 | 24 |
| 2017 | 46 | 38 |
| 2018 | 30 | 34 |
| 2019 | 45 | 37 |
| 2020 | 44 | 33 |
| 2021 | 32 | 26 |
| 2022 | 28 | 25 |
| 2023 | 21 | 19 |
| 2024 | 19 | 30 |
| 2025 | 24 | 25 |
| 2026 | 17 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical signal transmission in a hard disk drive25 Aug 2026US 12,718,840 B2Seagate Technology LLC
- Disk device18 Aug 2026US 12,711,996 B2Kabushiki Kaisha Toshiba
- Disk device with constrained layer configurations between inner and outer covers18 Aug 2026US 12,711,997 B2Kabushiki Kaisha Toshiba
- Active humidity control using heat-responsive water-releasing substances in data storage devices18 Aug 2026US 12,711,998 B2Western Digital Technologies, Inc.
- Disk device with exposed inner surface regions for improved cover coupling4 Aug 2026US 12,700,427 B2Kabushiki Kaisha Toshiba
- Ultrasonic motor rotary actuator for hard disk drive24 Sep 2026US 2026/0290395 A1Seagate Technology LLC
- Disk device10 Sep 2026US 2026/0268942 A1Kabushiki Kaisha Toshiba
- Cationic Multimetallic Transition Metal Complexes Salts As Oxygen Releaser In Hard Disk Drives6 Aug 2026US 2026/0229257 A1Western Digital Technologies, Inc.
- Disk device16 Jul 2026US 2026/0204284 A1Kabushiki Kaisha Toshiba
- Recessed base for a magnetic storage device16 Jul 2026US 2026/0204295 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Disk drive apparatus using dynamic loading/unloading217US 4,933,785 APrairietek Corporation · 1990
- Methods and systems for establishing retrograde carotid arterial blood flow206US 8,157,760 B2Silk Road Medical, Inc. · 2012
- Hot-swappable multi-cartridge docking module190US 5,483,419 APont Peripherals Corporation · 1996
- Architecture for 21/2 inch diameter single disk drive185US 5,025,335 AConner Peripherals, Inc. · 1991
- Disc player and disc loading device185US 5,355,357 ASony Corporation · 1994