US Patent No: 5,955,154
Number of patents in Portfolio can not be more than 2000
Magnetic recording medium with laser textured glass or glass-ceramic substrate
Stats
-
Sep 21, 1999
Issued date -
Jun 27, 1996
filing date -
08/666,373
serial no -
Expired
status
Importance
Loading Importance Indicators...
Abstract
A magnetic recording medium is formed with a laser textured glass or glass-ceramic substrate. The use of a pulsed, focused laser light beam, such as a CO.sub.2 derived laser light beam, enables the formation of an accurately textured landing zone on a glass or glass-ceramic substrate which is substantially replicated on subsequently applied layers.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 5,062,021 Selectively textured magnetic recording media | 146 | 1990 | |
| 5,714,207 Method of laser texturing glass or glass-ceramic substrates for magnetic recording media | 21 | 1997 | |
| 5,853,820 Controlled laser texturing glass-ceramic substrates for magnetic recording media | 11 | 1997 | |
|
|
|||
| 4,307,408 Recording apparatus using coherent light | 25 | 1979 | |
| 5,416,755 Optical pickup using split beams impinging on different photo-detector areas | 26 | 1994 | |
|
|
|||
| 5,567,484 Process for texturing brittle nonmetallic surfaces | 35 | 1995 | |
| 5,595,791 Process for texturing brittle glass disks | 42 | 1995 | |
|
|
|||
| 5,166,006 Textured thin-film substrate and method | 60 | 1991 | |
| 5,741,560 Method for preparing a substrate for a magnetic disk | 19 | 1996 | |
|
|
|||
| 4,724,219 Radiation melting of semiconductor surface areas through a remote mask | 32 | 1986 | |
|
|
|||
| 5,273,834 Discs for memory storage devices | 35 | 1993 | |
|
|
|||
| 5,120,927 High track density media with optical servo tracks and method and apparatus for inscribing the tracks on the media | 45 | 1990 | |
|
|
|||
| 5,614,114 Laser system and method for plating vias | 138 | 1994 | |
|
|
|||
| 5,202,810 Magnetic disk having an improved surface configuration | 61 | 1990 | |
|
|
|||
| 5,391,522 Glass-ceramic for magnetic disks and method for manufacturing the same | 81 | 1994 | |
|
|
|||
| 5,128,914 Optical pickup apparatus utilizing a diffraction device | 41 | 1990 | |
|
|
|||
| 5,582,878 Process for producing magnetic recording medium | 17 | 1996 | |
|
|
|||
| 5,402,407 Optical pickup apparatus and method for adjusting optical axis thereof | 50 | 1993 | |
|
|
|||
| 5,352,495 Treatment of a surface by laser energy | 8 | 1993 | |
|
|
|||
| 5,798,164 Zone textured magnetic recording media | 16 | 1995 | |