G11B 17/32
Maintaining desired spacing between record carrier and head
Official title: Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing {(damping of vibrations of record carriers on turntables by fluid-dynamic means G11B19/2018)}
G11B17/32 (Maintaining desired spacing between record carrier and head) appears on 303 US grants and 22 published applications in this corpus.
Search patents in G11B- Granted patents
- 303
- Published applications
- 22
- Assignees
- 92
- Inventors
- 528
- Latest grant
- 20 Jun 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 15 | 0 |
| 1978 | 19 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 10 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 10 | 0 |
| 1987 | 19 | 0 |
| 1988 | 17 | 0 |
| 1989 | 14 | 0 |
| 1990 | 13 | 0 |
| 1991 | 19 | 0 |
| 1992 | 16 | 0 |
| 1993 | 8 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 14 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 0 |
| 2002 | 7 | 1 |
| 2003 | 2 | 2 |
| 2004 | 2 | 0 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 4 |
| 2010 | 5 | 1 |
| 2011 | 1 | 3 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 2 | 1 |
| 2015 | 3 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer20 Jun 2023US 11,682,425 B2Hoya Corporation
- Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer8 Jun 2021US 11,031,038 B2Hoya Corporation
- Advanced air bearing slider6 Oct 2020US 10,796,721 B1Seagate Technology LLC
- Baseplate resonant axis optimization5 May 2020US 10,643,655 B2Seagate Technology LLC
- ABS design with soft bumper pads (SBP) for mitigating media damage and thermal erasure in hard disk drives (HDD)13 Feb 2018US 9,892,746 B1Headway Technologies, Inc.
- Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer26 Aug 2021US 2021/0264946 A1Hoya Corporation
- Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer16 Jul 2020US 2020/0227087 A1Hoya Corporation
- Baseplate resonant axis optimization26 Mar 2015US 2015/0085400 A1Seagate Technology LLC
- Controlling head-media spacing using a write coil29 May 2014US 2014/0146647 A1Seagate Technology LLC
- Disk stabilizer to prevent disk sticking and method thereto1 Sep 2011US 2011/0214139 A1NEC Corporation
Most cited
By later US patents
- Method and apparatus for detecting asperities on magnetic disks using thermal proximity imaging84US 5,527,110 AInternational Business Machines Corporation · 1996
- Apparatus for coupling record disk to disk drive81US 4,901,173 A1990
- Apparatus for analyzing the interface between a recording disk and a read-write head76US 4,532,802 AInternational Business Machines Corporation · 1985
- Pressure device for flexible recording media in cartridges using a universal joint mounting74US 4,320,429 ABASF SE · 1982
- Air bearing slider with reduced stiction69US 6,144,528 ARead-Rite Corporation · 2000