G11B 21/022
Programmed access in sequence to indexed parts of operating record carriers
Official title: {Programmed access in sequence to indexed parts of operating record carriers}
G11B21/022 (Programmed access in sequence to indexed parts of operating record carriers) appears on 113 US grants and 44 published applications in this corpus.
Search patents in G11B- Granted patents
- 113
- Published applications
- 44
- Assignees
- 55
- Inventors
- 207
- Latest grant
- 9 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 11 | 0 |
| 2000 | 8 | 0 |
| 2001 | 15 | 14 |
| 2002 | 12 | 8 |
| 2003 | 7 | 1 |
| 2004 | 11 | 6 |
| 2005 | 2 | 0 |
| 2006 | 3 | 3 |
| 2007 | 3 | 0 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 2 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Current sensing circuit and hard disk drive including same9 Jul 2024US 12,033,663 B2STMicroelectronics S,r.l.
- Mount plate with suspension circuit indentations27 Feb 2024US 11,915,721 B2Magnecomp Corporation
- Head assembly with suspension system for a tape embedded drive19 Jul 2022US 11,393,498 B2Western Digital Technologies, Inc.
- Head assembly with suspension system for a tape embedded drive27 Apr 2021US 10,991,390 B2Western Digital Technologies, Inc.
- Magnet for motor of magnetic storage device9 Feb 2021US 10,916,269 B2Western Digital Technologies, Inc.
- Current sensing circuit and hard disk drive including same1 Feb 2024US 2024/0038268 A1STMicroelectronics S,r.l.
- Mount Plate With Suspension Circuit Indentations24 Aug 2023US 2023/0267962 A1Magnecomp Corporation
- Head assembly with suspension system for a tape embedded drive12 Aug 2021US 2021/0249042 A1Western Digital Technologies, Inc.
- Magnet for motor of magnetic storage device20 Aug 2020US 2020/0265868 A1Western Digital Technologies, Inc.
- Tape embedded drive13 Aug 2020US 2020/0258544 A1Western Digital Technologies, Inc.
Most cited
By later US patents
- Slider with temperature responsive transducer positioning229US 5,991,113 ASeagate Technology LLC · 1999
- Suspension for disc drive71US 6,731,472 B2Hitachi, Ltd. · 2004
- Data disc optical reader containing a device for automatic data access68US 4,106,058 AThomson-Brandt · 1978
- Method and apparatus for positioning a magnetoresistive head using thermal response to servo information on the record medium51US 5,739,972 A1998
- Method and apparatus for positioning a dual element magnetoresistive head47US 6,154,335 AInternational Business Machines Corporation · 2000