G11B 21/085
With track following of accessed part
Official title: {with track following of accessed part}
G11B21/085 (With track following of accessed part) appears on 345 US grants and 16 published applications in this corpus.
Search patents in G11B- Granted patents
- 345
- Published applications
- 16
- Assignees
- 79
- Inventors
- 507
- Latest grant
- 12 Mar 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 15 | 0 |
| 1985 | 22 | 0 |
| 1986 | 17 | 0 |
| 1987 | 11 | 0 |
| 1988 | 9 | 0 |
| 1989 | 20 | 0 |
| 1990 | 20 | 0 |
| 1991 | 13 | 0 |
| 1992 | 15 | 0 |
| 1993 | 16 | 0 |
| 1994 | 11 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 19 | 0 |
| 1998 | 26 | 0 |
| 1999 | 25 | 0 |
| 2000 | 25 | 0 |
| 2001 | 8 | 4 |
| 2002 | 11 | 5 |
| 2003 | 3 | 2 |
| 2004 | 5 | 0 |
| 2005 | 3 | 2 |
| 2006 | 4 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Magnetic disk recording device having different time interval between first and second pre-heating periods12 Mar 2019US 10,229,707 B2Kabushiki Kaisha Toshiba
- Head position control method, head position control device, and disk device4 Sep 2007US 7,265,934 B2Fujitsu Limited
- Hard disk device27 Feb 2007US 7,184,240 B2Funai Electric Co., Ltd.
- Head actuator26 Dec 2006US 7,154,702 B2Fujitsu Limited
- Head positioner and information recording/replaying apparatus18 Apr 2006US 7,031,099 B2Matsushita Electric Industrial Co., Ltd.
- Disk device and control method4 Oct 2018US 2018/0286440 A1Kabushiki Kaisha Toshiba
- Head position control method, head position control device, and disk device28 Dec 2006US 2006/0291101 A1Fujitsu Limited
- Hard disk device2 Feb 2006US 2006/0023330 A1Funai Electric Co., Ltd.
- Position control of optical head in a recording device7 Jul 2005US 2005/0146997 A1Deutsche Thomson-Brandt GmbH
- Non-consecutive transitional mechanism for seek operations when transitioning from a seek control to a track following control3 Mar 2005US 2005/0046984 A1Seagate Technology LLC
Most cited
By later US patents
- Digital servo control system for use in disk drives144US 6,347,018 B1Rodime PLC · 2002
- Method and apparatus for adaptive control135US 5,369,345 ASeagate Technology LLC · 1994
- Leading surface slider microactuator116US 5,898,541 ASeagate Technology LLC · 1999
- Gimbal suspension for supporting a head in a disc drive assembly86US 5,856,896 ASeagate Technology LLC · 1999
- Utilization of stored run-out information in a track following servo system85US 4,135,217 AXerox Corporation · 1979