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Class Information
Number: 428/848.9
Name: Stock material or miscellaneous articles > Magnetic recording component or stock > Magnetic recording media substrate > Circular shape (e.g., disk, etc.) > Magneto-optic media disc
Description: Subject matter in which the disk substrate has identified utility as a magneto-optic disk substrate.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7179551 |
Poly(arylene ether) data storage media |
Feb. 20, 2007 |
| 6623828 |
Optical disk employing integral substrate, and method for manufacturing the same |
Sep. 23, 2003 |
| 6620480 |
Pre-engraved substrate for magnetic, magneto-optical, or phase transition optical disc |
Sep. 16, 2003 |
| 6187431 |
Magnetic recording medium |
Feb. 13, 2001 |
| 6180201 |
Rewritable optical data storage disk having enhanced flatness |
Jan. 30, 2001 |
| 6150000 |
Magneto-optical disk and superdensity disk employing integral substrate, and method for manufacturing the same |
Nov. 21, 2000 |
| 6055215 |
Magneto-optical recording medium having a plurality of ferromagnectic thin layers |
Apr. 25, 2000 |
| 5972461 |
Rewritable optical data storage disk having enhanced flatness |
Oct. 26, 1999 |
| 5871881 |
Multilayer optical information medium |
Feb. 16, 1999 |
| 5763037 |
Base for optical recording medium and stamper for manufacturing base of optical recording medium |
Jun. 9, 1998 |
| 5725931 |
Constrained layer damper with slit(s) and/or cutout(s) |
Mar. 10, 1998 |
| 5707728 |
Magneto-optical recording medium |
Jan. 13, 1998 |
| 5673251 |
Two substrates bonding type optical disk and method of producing the same |
Sep. 30, 1997 |
| 5662979 |
Substrate for optical disc |
Sep. 2, 1997 |
| 5620766 |
Magneto-optical disk |
Apr. 15, 1997 |
| 5589244 |
Magneto-optical disc |
Dec. 31, 1996 |
| 5540967 |
Optical disc |
Jul. 30, 1996 |
| 5527594 |
Optical tape |
Jun. 18, 1996 |
| 5487926 |
Optical disk |
Jan. 30, 1996 |
| 5458940 |
Optical disk with vibration dampening |
Oct. 17, 1995 |
| 5459019 |
Optical tape |
Oct. 17, 1995 |
| 5378517 |
Optical disc having signal recording layer on each side and method for producing same |
Jan. 3, 1995 |
| 5342682 |
Method of molding optical recording drums |
Aug. 30, 1994 |
| 5340698 |
Optical disk |
Aug. 23, 1994 |
| 5318653 |
Optical disc and method and apparatus for making same |
Jun. 7, 1994 |
| 5292550 |
Manufacturing method of substrate means for optical recording disk and apparatus therefor |
Mar. 8, 1994 |
| 5202880 |
Double-sided magneto-optical media for a multi-disk storage device |
Apr. 13, 1993 |
| 5199024 |
Optical data storage medium having embedded tracking information |
Mar. 30, 1993 |
| 5197060 |
Dual substrate optical recording medium |
Mar. 23, 1993 |
| 5110707 |
Method of producing an optical or magneto-optical recording card and transfer type optical or magneto-optical recording medium |
May. 5, 1992 |
| 5095478 |
Optical data storage medium having interference and flattening layers each having specific thickness for improved information reading and tracking reliability |
Mar. 10, 1992 |
| 5089358 |
Optical recording medium |
Feb. 18, 1992 |
| 5080945 |
Large-capacity-memory disk |
Jan. 14, 1992 |
| 4985885 |
Optical memory device |
Jan. 15, 1991 |
| 4977019 |
Magnetooptical recording medium bonded with a flexible foam adhesive |
Dec. 11, 1990 |
| 4877666 |
Magneto-optic substrates |
Oct. 31, 1989 |
| 4876133 |
Optical data recording system and method of production of recording medium |
Oct. 24, 1989 |
| 4870429 |
Optical foam-spacer disk assembly |
Sep. 26, 1989 |
| 4821050 |
Optical information recording medium |
Apr. 11, 1989 |
| 4800112 |
Optical recording medium |
Jan. 24, 1989 |
| 4751124 |
Information recording medium |
Jun. 14, 1988 |
| 4610903 |
Magneto-optical disk memory |
Sep. 9, 1986 |
| 4596740 |
Recording carrier comprising a magnetooptic recording medium layer consisting of rare earth-transition metal amorphous layer formed on a plastic substrate |
Jun. 24, 1986 |
| 4489139 |
Magneto-optic memory medium |
Dec. 18, 1984 |
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