G11B 19/24
Arrangements for providing constant relative speed between record carrier and head
G11B19/24 (Arrangements for providing constant relative speed between record carrier and head) appears on 346 US grants and 79 published applications in this corpus.
Search patents in G11B- Granted patents
- 346
- Published applications
- 79
- Assignees
- 94
- Inventors
- 456
- Latest grant
- 22 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 6 | 0 |
| 1983 | 11 | 0 |
| 1984 | 5 | 0 |
| 1985 | 11 | 0 |
| 1986 | 7 | 0 |
| 1987 | 13 | 0 |
| 1988 | 8 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 10 | 0 |
| 1992 | 10 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 10 | 0 |
| 1996 | 18 | 0 |
| 1997 | 21 | 0 |
| 1998 | 26 | 0 |
| 1999 | 23 | 0 |
| 2000 | 19 | 0 |
| 2001 | 21 | 9 |
| 2002 | 12 | 23 |
| 2003 | 18 | 6 |
| 2004 | 11 | 8 |
| 2005 | 6 | 12 |
| 2006 | 19 | 5 |
| 2007 | 2 | 4 |
| 2008 | 2 | 2 |
| 2009 | 1 | 0 |
| 2010 | 2 | 0 |
| 2011 | 2 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 2 |
| 2015 | 3 | 1 |
| 2016 | 2 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 3 |
| 2020 | 3 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Phonograph playing vehicle22 Dec 2020US 10,872,621 B2
- Amplifier selection device, amplifier selection method, and computer-readable storage medium having power source capacity display function30 Jun 2020US 10,699,743 B2Fanuc Corporation
- Amplifier selection device, amplifier selection method, and computer-readable storage medium having power source capacity display function26 May 2020US 10,665,262 B2Fanuc Corporation
- Record player12 Sep 2017US 9,761,250 B1Ya Horng Electronic Co., Ltd.
- Data storage device compensating for fabrication tolerances when measuring spindle motor current19 Jul 2016US 9,396,751 B1Western Digital Technologies, Inc.
- Phonograph Playing Vehicle8 Aug 2019US 2019/0244633 A1
- Amplifier selection device, amplifier selection method, and computer-readable storage medium having power source capacity display function21 Mar 2019US 2019/0088282 A1Fanuc Corporation
- Amplifier selection device, amplifier selection method, and computer-readable storage medium having power source capacity display function21 Mar 2019US 2019/0088283 A1Fanuc Corporation
- Hydrodynamic bearing device, spindle motor having the same, and recording disk driving device12 Nov 2015US 2015/0323002 A1Samsung Electro-Mechanics Co., Ltd.
- Recording head with dual coil/dual shield arrangement and high frequency oscillator13 Nov 2014US 2014/0334030 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Optical reproducing method215US 6,549,497 B2Hitachi, Ltd. · 2003
- Data recording/reproducing method and apparatus using a recording medium having clock marks recorded in a wobbled track for read/write synchronization143US 5,377,178 AHitachi, Ltd. · 1994
- Computing apparatus configured for partitioned processing115US 5,768,613 AAdvanced Micro Devices, Inc. · 1998
- Method to improve the jitter of high frequency phase locked loops used in read channels108US 6,111,712 ACirrus Logic, Inc. · 2000
- Recording system for recording only those types of information which are specified by the record carrier105US 5,060,219 AU. S. Philips Corporation · 1991