G11B 2020/1257
Count key data [ckd] format
Official title: {Count Key Data [CKD] format}
G11B2020/1257 (Count key data [ckd] format) appears on 16 US grants and 3 published applications in this corpus.
Search patents in G11B- Granted patents
- 16
- Published applications
- 3
- Assignees
- 5
- Inventors
- 24
- Latest grant
- 30 May 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
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| 1985 | 1 | 0 |
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| 1987 | 1 | 0 |
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| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
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| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Shingled magnetic recording data store30 May 2017US 9,666,228 B2Seagate Technology LLC
- Shingled magnetic recording data store7 Jun 2016US 9,361,937 B2Seagate Technology LLC
- Method of writing data and channel adapter20 Jan 2009US 7,480,850 B2Fujitsu Limited
- System and method for emulating disk tracks to maintain data format compatibility31 Dec 1996US 5,590,311 AFujitsu Limited
- Banded magnetic recording disk with equally-angularly-spaced servo sector11 Jun 1996US 5,526,211 AInternational Business Machines Corporation
Most cited
By later US patents
- Sectored servo independent of data architecture93US 5,210,660 AInternational Business Machines Corporation · 1993
- Managing data storage space on large capacity record media73US 4,939,598 AInternational Business Machines Corporation · 1990
- Apparatus for controlling reading and writing in a disk drive66US 5,285,327 AInternational Business Machines Corporation · 1994
- Logical data tracks extending among a plurality of zones of physical tracks of one or more disk devices51US 5,202,799 AIBM Corporation · 1993
- Method and apparatus with improved error correction and error information availability36US 4,833,679 AInternational Business Machines Corporation · 1989