G11B 11/10573
Control of relative positioning of the magnetic and optical transducers
Official title: {Control of relative positioning of the magnetic and optical transducers, e.g. to move simultaneously}
G11B11/10573 (Control of relative positioning of the magnetic and optical transducers) appears on 43 US grants and 10 published applications in this corpus.
Search patents in G11B- Granted patents
- 43
- Published applications
- 10
- Assignees
- 16
- Inventors
- 53
- Latest grant
- 17 Apr 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 3 |
| 2002 | 2 | 1 |
| 2003 | 5 | 3 |
| 2004 | 3 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical disk recording/reproducing device17 Apr 2007US 7,206,262 B2Matsushita Electric Industrial Co., Ltd.
- Magnetic recording medium having magnetic decoupling ability28 Nov 2006US 7,142,384 B2Fujitsu Limited
- Magneto-optical recording apparatus capable of adjusting the magnetic head19 Jul 2005US 6,920,087 B2Sanyo Electric Co., Ltd.
- Magneto-optic disk device and method of positioning magnetic head of the device30 Nov 2004US 6,826,130 B2Sanyo Electric Co., Ltd.
- Magneto-optical recording device having optical and magnetic heads moving independently27 Jan 2004US 6,683,824 B2Fujitsu Limited
- Magneto-optical device12 Jan 2006US 2006/0007790 A1Koninklijke Philips Electronics N. V.
- Optical disk recording/reproducing device25 Nov 2004US 2004/0233796 A1Matsushita Electric Industrial Co., Ltd.
- Magnetic recording method, magnetic recording device, and magnetic recording medium15 Jul 2004US 2004/0136107 A1Fujitsu Limited
- Magneto-optical disk apparatus11 Dec 2003US 2003/0227832 A1Sanyo Electric Co., Ltd.
- Magneto-optic disk device and method of positioning magnetic head of the device17 Jul 2003US 2003/0133365 A1Sanyo Electric Co., Ltd.
Most cited
By later US patents
- Method for reading magnetic super resolution type magneto-optical recording medium35US 6,188,649 B1Matsushita Electric Industrial Co., Ltd. · 2001
- Shutter operating mechanism for magneto-optical disk drive32US 5,768,241 AAsahi Kogaku Kogyo Kabushiki Kaisha · 1998
- Magneto-optical recording medium and apparatus22US 5,193,080 AMatsushita Electric Industrial Co., Ltd. · 1993
- Magneto-optical disk recording and reading apparatus and method wherein the recording head is controlled in the radial direction of the disk to a desired position15US 5,495,455 ASony Corporation · 1996
- Control system for the magnetic head of a magneto-optical disc apparatus13US 5,179,544 AU. S. Philips Corporation · 1993