| Patent Number |
Title Of Patent |
Date Issued |
| 7064906 |
Optical pickup device with shielding to limit incident or emitted light |
June 20, 2006 |
| An optical pickup device and optical disc apparatus of the present invention include an optical element that prevents the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element include at least one substrate |
| 6898027 |
Optical element and manufacturing method for same |
May 24, 2005 |
| An optical element and manufacturing method of the present invention prevent the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element is configured from at least one substrate having a plurality of lens su |
| 6522621 |
Disc cassette |
February 18, 2003 |
| A disc cassette comprises a case in which a recording disc is rotatably received. The case has an opening through which the disc is exposed. A bridge defined by the case extends across a mouth portion of the opening. A slide bar is arranged beside the bridge in a manner to move axially |
| 6452887 |
Disk drive |
September 17, 2002 |
| A disk drive including a turntable for holding and rotating a disk, a pickup for reading information carried by a signal and/or recording information carried by a signal to the disk by moving the pickup in a radial direction of the disk that is held and rotated by the turntable, and |
| 6414928 |
Disc tray, disc-tray accommodating apparatus and disc drive apparatus |
July 2, 2002 |
| A disc tray for holding a disc on which an information signal is recorded and which can be loaded into a disc drive apparatus in a state where the disc tray holds the disc, the disc tray having an overall body formed into a thin plate-like shape and including a disc-receiving recess havi |
| 6407982 |
Disk tray, disk storing apparatus and disk drive |
June 18, 2002 |
| A disc tray for holding a disc on which an information signal is recorded and which can be loaded into a disc drive apparatus in a state where the disc tray holds the disc, the disc tray having an overall body formed into a thin plate-like shape and including a disc-receiving recess havi |
| 6345035 |
Disc tray, disc-tray accommodating apparatus and disc drive apparatus |
February 5, 2002 |
| A disc tray for holding a disc on which an information signal is recorded and which can be loaded into a disc drive apparatus in a state where the disc tray holds the disc, the disc tray having an overall body formed into a thin plate-like shape and including a disc-receiving recess havi |
| 6314076 |
Optical pickup device in recording and/reproducing apparatus |
November 6, 2001 |
| An optical pickup device capable of irradiating laser beams on a signal recording surface of magneto-optical disk is provided. The optical pickup device so provided includes a separate optical system whose moveable portion is reduced in weight in order to cope with high-speed access. |
| 6275460 |
Pick-up position adjusting mechanism and tray unlocking mechanism |
August 14, 2001 |
| A disk drive including a turntable for holding and rotating a disk, a pickup for reading information carried by a signal from the disk and/or recording information carried by a signal to the disk by moving the pickup in a radial direction of the disk that is held and rotated by the t |
| 6272092 |
Recording and reproducing apparatus with lock and release mechanism |
August 7, 2001 |
| A recording and reproducing apparatus having a holder for holding an inserted cartridge with a recording medium stored therein in which a recording medium is loaded or unloaded at the recording and reproducing position for recording and/or reproducing information as the holder is ele |
| 6188661 |
Recording and reproducing apparatus having elevation mechanism |
February 13, 2001 |
| An optical pickup device capable of irradiating laser beams on a signal recording surface of a magneto-optical disk is provided. The optical pickup device so provided includes a separate optical system whose moveable portion is reduced in weight in order to cope with high-speed acces |
| 6154431 |
Recording and reproducing apparatus |
November 28, 2000 |
| A recording and reproducing apparatus having a holder for holding an inserted cartridge with a recording medium stored therein in which a recording medium is loaded or unloaded at the recording and reproducing position for recording and/or reproducing information as the holder is ele |
| 6151293 |
Two-layer optical disk unaffected by position deviation |
November 21, 2000 |
| An optical disc and a disc cartridge for accommodating the optical disc, wherein the disc cartridge accommodates a disc non-symmetrical in cross-section relative to the center of thickness of the disc. The disc cartridge includes a main cartridge body portion and an opening/closure m |
| 6046976 |
Disc cartridge with grooves for a recording and reproducing apparatus |
April 4, 2000 |
| A disk cartridge is provided for storing a recording disk in a space formed by fastening an upper half and a lower half. At least either the upper half or the lower half has a pair of groove portions defined on its right and left side surfaces from the front end to the central portion di |
| 6021108 |
Optical pickup device in recording and/reproducing apparatus |
February 1, 2000 |
| An optical pickup device capable of irradiating laser beams on a signal recording surface of a magneto-optical disk is provided. The optical pickup device so provided includes a separate optical system whose moveable portion is reduced in weight in order to cope with high-speed acces |
| 5970045 |
Optical disc and disc cartridge |
October 19, 1999 |
| An optical disc and a disc cartridge for accommodating the optical disc, wherein the disc cartridge accommodates a disc non-symmetrical in cross-section relative to the center of thickness of the disc, in which disc cartridge includes a main cartridge body portion and an opening/clos |
| 5841752 |
Disc drive unit |
November 24, 1998 |
| A disc drive unit for driving a disc recording medium such as a magneto-optical disc accommodated in a disc cassette, comprises a chassis, a cassette holder having a pair of wall sections and moveable up and down between upper and lower positions with respect to the chassis, and the |
| 5815470 |
Disc drive unit |
September 29, 1998 |
| A disc drive unit for a magneto-optical disc accommodated in a disc cassette, comprises a magnetic head for applying a magnetic field to the magneto-optical disc, a magnetic head moving mechanism for moving the magnetic head between a loading and unloading position, an eject mechanism |
| 5623457 |
Photomagnetic disc drive system having a locking mechanism |
April 22, 1997 |
| An apparatus for recording and reproducing information stored on a photomagnetic disc, includes a magnetic head which produces magnetic field. The apparatus comprises a carriage radially movable with respect to the photomagnetic disc. A head supporting mechanism is shiftably disposed |
