Magnetic recording medium with laser textured glass or glass-ceramic substrate

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5955154
SERIAL NO

08666373

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SEAGATE TECHNOLOGY LLCSCOTTS VALLEY, CA5006

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Ga-Lane Fremont, CA 502 2347
Xuan, Jialuo Jack Milpitas, CA 32 297

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SHARP KABUSHIKI KAISHA (1)
* 5128914 Optical pickup apparatus utilizing a diffraction device 41 1990
 
WESTERN DIGITAL TECHNOLOGIES, INC. (2)
* 5567484 Process for texturing brittle nonmetallic surfaces 35 1995
* 5595791 Process for texturing brittle glass disks 42 1995
 
SONY CORPORATION (1)
* 5402407 Optical pickup apparatus and method for adjusting optical axis thereof 54 1993
 
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. (1)
* 5202810 Magnetic disk having an improved surface configuration 61 1990
 
WIGGINS TEAPE GROUP LIMITED, THE (1)
* 5352495 Treatment of a surface by laser energy 11 1993
 
KABUSHIKI KAISHA OHARA (1)
* 5391522 Glass-ceramic for magnetic disks and method for manufacturing the same 82 1994
 
CREDIT MANAGERS ASSOCIATION OF CALIFORNIA (1)
* 5120927 High track density media with optical servo tracks and method and apparatus for inscribing the tracks on the media 46 1990
 
CORNING INCORPORATED (1)
* 5273834 Discs for memory storage devices 37 1993
 
KOMAG, INC. (2)
* 5166006 Textured thin-film substrate and method 60 1991
* 5741560 Method for preparing a substrate for a magnetic disk 19 1996
 
SEAGATE TECHNOLOGY LLC (3)
* 5062021 Selectively textured magnetic recording media 156 1990
* 5714207 Method of laser texturing glass or glass-ceramic substrates for magnetic recording media 22 1997
* 5853820 Controlled laser texturing glass-ceramic substrates for magnetic recording media 12 1997
 
ELECTRO SCIENTIFIC INDUSTRIES, INC. (1)
* 5614114 Laser system and method for plating vias 141 1994
 
SHOWA DENKO K.K. (1)
* 5582878 Process for producing magnetic recording medium 17 1996
 
DIAMONDOP, LLC (1)
* 5798164 Zone textured magnetic recording media 16 1995
 
ALLEGRO MICROSYSTEMS, INC. (1)
* 4724219 Radiation melting of semiconductor surface areas through a remote mask 33 1986
 
CANON KABUSHIKI KAISHA (1)
* 5416755 Optical pickup using split beams impinging on different photo-detector areas 26 1994
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ZWIESEL KRISTALLGLAS AG (2)
* 8122740 Method for generating raised or recessed structures on hollow bodies, preferably comprised of glass 1 2009
* 2009/0256,286 METHOD FOR GENERATING RAISED OR RECESSED STRUCTURES ON HOLLOW BODIES, PREFERABLY COMPRISED OF GLASS 1 2009
 
SEAGATE TECHNOLOGY LLC (2)
* 6204474 Apparatus and method for laser texturing a landing zone and a data zone of a magnetic recording medium 3 1999
6589609 Crystal zone texture of glass-ceramic substrates for magnetic recording disks 4 2000
 
WD MEDIA, INC. (1)
6395349 Method of marking disks 58 1999
 
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. (2)
* 6117620 Method of producing a calibration disk 6 1998
* 7554055 Method for making ohmic contact to silicon structures with low thermal loads 1 2005
 
COMMISSARIAT A L'ENERGIE ATOMIQUE (1)
* 2009/0188,899 METHOD AND DEVICE FOR PREVENTIVE TREATMENT OF AN OPTICAL SURFACE DESIGNED TO BE EXPOSED TO A LASER FLUX 1 2007
 
CORNING INCORPORATED (1)
* 6350506 Textured surface and method 4 1999
* Cited By Examiner