G11B 11/10508
By modulating only the magnetic field at the transducer
Official title: {by modulating only the magnetic field at the transducer}
G11B11/10508 (By modulating only the magnetic field at the transducer) appears on 183 US grants and 32 published applications in this corpus.
Search patents in G11B- Granted patents
- 183
- Published applications
- 32
- Assignees
- 43
- Inventors
- 276
- Latest grant
- 18 Nov 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 11 | 0 |
| 1993 | 8 | 0 |
| 1994 | 21 | 0 |
| 1995 | 14 | 0 |
| 1996 | 17 | 0 |
| 1997 | 14 | 0 |
| 1998 | 11 | 0 |
| 1999 | 11 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 6 |
| 2002 | 7 | 8 |
| 2003 | 8 | 5 |
| 2004 | 9 | 4 |
| 2005 | 6 | 4 |
| 2006 | 3 | 3 |
| 2007 | 2 | 1 |
| 2008 | 7 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical recording medium and disc cartridge18 Nov 2008US 7,454,771 B2Sony Corporation
- Enhanced data storage and retrieval devices and systems and methods for utilizing same5 Aug 2008US 7,408,729 B2GR Intellectual Reserve, LLC
- Optical disk apparatus and method for recording data by utilizing an overwrite technique or a two-path write technique10 Jun 2008US 7,385,882 B2Sony Corporation
- Stray field equalization for improved domain expansion reading10 Jun 2008US 7,385,883 B2Koninklijke Philips Electronics N. V.
- Magnetic recording medium, magnetic recording device, and method of manufacturing magnetic recording medium15 Apr 2008US 7,357,996 B2Sharp Kabushiki Kaisha
- Optical recording medium and disc cartridge24 Apr 2008US 2008/0098416 A1Sony Corporation
- Control means and method of controlling a current thorugh a coil8 Mar 2007US 2007/0053132 A1Koninklijke Philips Electronics N. V.
- Optical information processing apparatus29 Jun 2006US 2006/0140066 A1Fujitsu Limited
- Enhanced data storage and retrieval devices and systems and methods for utilizing same22 Jun 2006US 2006/0132952 A1GR Intellectual Reserve, LLC
- Thin-film coil, coil driving circuit and magnetic head6 Apr 2006US 2006/0072385 A1Fujitsu Limited
Most cited
By later US patents
- Method of and apparatus for correcting edge interval of pit in optical recording/read-out apparatus87US 5,418,770 AHitachi, Ltd. · 1995
- High density recording by a conductive probe contact with phase change recording layer81US 6,101,164 AMatsushita Electric Industrial Co., Ltd. · 2000
- Recording method using trial write test pattern70US 5,732,061 AHitachi, Ltd. · 1998
- Magnetooptical recording medium on which high-density information can be recorded and method of reproducing the recorded information53US 6,027,825 ACanon Kabushiki Kaisha · 2000
- Method of controlling recording of optical records49US 5,590,111 AHitachi, Ltd. · 1996