G11B 25/046
Using stationary discs, or cards provided with a circular recording area
Official title: {using stationary discs, or cards provided with a circular recording area (driving heads relatively to stationary record carriers for mechanical transducing G11B3/40; automatic feed mechanism producing a transducing traverse of the head across stationary disk tracks G11B21/043)}
G11B25/046 (Using stationary discs, or cards provided with a circular recording area) appears on 49 US grants and 23 published applications in this corpus.
Search patents in G11B- Granted patents
- 49
- Published applications
- 23
- Assignees
- 24
- Inventors
- 82
- Latest grant
- 6 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 7 |
| 2003 | 4 | 2 |
| 2004 | 4 | 1 |
| 2005 | 4 | 3 |
| 2006 | 2 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hard disk drive having dual micro-actuators on carriage arms6 Dec 2022US 11,521,646 B2Kabushiki Kaisha Toshiba
- Hard disk drive having dual micro-actuators on carriage arms20 Apr 2021US 10,984,827 B2Kabushiki Kaisha Toshiba
- Storage card adapter7 May 2019US 10,283,161 B2Facebook, Inc.
- Magnetic card reader24 Apr 2012US 8,162,217 B2Fujitsu Frontech Limited
- Magnetic card reader system16 Aug 2011US 7,997,488 B2CIS Electronica Industria e Comercio Ltda.
- Hard disk drive19 Aug 2021US 2021/0256997 A1Kabushiki Kaisha Toshiba
- Hard disk drive14 Jan 2021US 2021/0012796 A1Kabushiki Kaisha Toshiba
- Storage card adapter6 Dec 2018US 2018/0350402 A1Facebook, Inc.
- Magnetic card reader17 Nov 2011US 2011/0278359 A1Fujitsu Frontech Limited
- Magnetic Card Reader System7 May 2009US 2009/0114724 A1CIS Electronica Industria e Comercio Ltda.
Most cited
By later US patents
- Audio cassette emulator120US 6,941,180 B12005
- Photographic instant camera with magnetic recording capability57US 4,270,854 AAgfa-Gevaert · 1981
- Magnetic card reader and method43US 5,107,099 A1992
- Single motor data storage device utilizing centrifugal force and counteracting spring39US 5,172,282 ASeagate Technology LLC · 1992
- Card drive apparatus and card22US 5,942,744 AMitsubishi Denki Kabushiki Kaisha · 1999