| Patent Number |
Title Of Patent |
Date Issued |
| 7203951 |
Optical head device for an optical disk apparatus reading and writing information on an optical |
April 10, 2007 |
| An optical head device for an optical disk apparatus for optically reading and writing information by irradiating a light spot onto an information recording surface of an optical recording medium, which is capable of moving an objective lens to a predetermined position even when part of |
| 6463019 |
Optical pickup |
October 8, 2002 |
| An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils b |
| 6288984 |
Optical pickup |
September 11, 2001 |
| An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils b |
| 6285517 |
Objective lens driving device |
September 4, 2001 |
| An objective lens driver in which a movable portion 1 with an objective lens 11 is supported on a fixed portion by two groups of elastic supporting members each being horizontally bent which are disposed on both sides of the objective lens 11 such that each group of elastic supporting |
| 6163416 |
Objective lens driving device and manufacturing method thereof |
December 19, 2000 |
| An objective lens driver in which a movable portion 1 with an objective lens 11 is supported on a fixed portion by two groups of elastic supporting members each being horizontally bent which are disposed on both sides of the objective lens 11 such that each group of elastic supporting |
| 6160771 |
Objective lens drive device and method of manufacturing the same |
December 12, 2000 |
| An objective lens drive device has a movable section which has an objective lens and is supported by wires extended from a stationary section, and the wires which are positioned by guide holes formed in the movable section or stationary section. In the device, the wires are fixedly posit |
| 5877904 |
Optical pickup |
March 2, 1999 |
| An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils b |
| 5724337 |
Optical pickup with a compact design |
March 3, 1998 |
| An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils b |
