G11B 5/004
Recording on, or reproducing or erasing from, magnetic drums
Official title: Recording on, or reproducing or erasing from, magnetic drums (G11B19/00 takes precedence)
G11B5/004 (Recording on, or reproducing or erasing from, magnetic drums) appears on 19 US grants and 6 published applications in this corpus.
Search patents in G11B- Granted patents
- 19
- Published applications
- 6
- Assignees
- 12
- Inventors
- 39
- Latest grant
- 23 Oct 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus23 Oct 2018US 10,109,302 B1TDK Corporation
- Optical information recording apparatus21 Apr 2009US 7,522,498 B2Sony Corporation
- Optical information recording medium, optical information recording apparatus and method15 Jan 2008US 7,319,656 B2Sony Corporation
- Optical and visual information recording medium, optical and visual information recording apparatus and method22 Jun 2004US 6,754,158 B1Sony Corporation
- Magnetic writing of repetitive information on magnetic wheel and magnization head for media9 Jun 1998US 5,764,429 AEastman Kodak Company
- Sound source processing apparatus using magnetic drum24 Oct 2024US 2024/0355352 A1
- Electronic Storage System Architecture28 Nov 2013US 2013/0314819 A1LSI Corporation
- Optical information recording medium, optical information recording apparatus and method5 Jul 2007US 2007/0153666 A1Sony Corporation
- Electronic apparatus having a cylindrical storage device8 Feb 2007US 2007/0030792 A1
- Optical information recording medium, optical information recording apparatus and method21 Oct 2004US 2004/0208104 A1Sony Corporation
Most cited
By later US patents
- Optical and visual information recording medium, optical and visual information recording apparatus and method26US 6,754,158 B1Sony Corporation · 2004
- Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus20US 10,109,302 B1TDK Corporation · 2018
- Recording and/or reproducing apparatus20US 4,567,535 AVictor Company of Japan, Ltd. · 1986
- Apparatus and method for increasing storage capacity of recording media17US 5,031,168 AInformation Storage, Inc. · 1991
- Magnetoresistive sensor having inter-leaved magnetoresistive elements for detecting encoded magnetic information14US 4,853,631 AThe Superior Electric Company · 1989