Matches 1 - 18 out of 18


Match Document Document Title
US20090166184 Perpendicular magnetic medium with shields between tracks  
A track shield structure is disclosed that enables higher track density to be achieved in a patterned track medium without increasing adjacent track erasure and side reading. This is accomplished...
US20080292907 PATTERNED PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH EXCHANGE COUPLED RECORDING LAYER STRUCTURE AND MAGNETIC RECORDING SYSTEM USING THE MEDIUM  
A patterned perpendicular magnetic recording medium has discrete magnetic islands, each of which has a recording layer (RL) structure that comprises two exchange-coupled ferromagnetic layers. The...
US20060280975 Magnetic recording disk with patterned nondata islands of alternating polarity  
A magnetic recording disk has patterned nondata regions that are used for read/write head positioning and data synchronization. The nondata regions contain nondata islands of magnetizable material...
US20070026265 Patterned substrate having patterns of protrusions and recesses, method of manufacturing the same, magnetic recording media, and magnetic recording apparatus  
According to one embodiment, a patterned substrate used for a magnetic recording media having discrete tracks includes patterns of protrusions and recesses processed thereon, and a texture...
US20100233517 METHOD FOR MAKING A MASTER DISK FOR NANOIMPRINTING PATTERNED MAGNETIC RECORDING DISKS AND MASTER DISK MADE BY THE METHOD  
A method for making a master disk to be used for nanoimprinting patterned-media magnetic recording disks uses sidewall lithography. In one implementation, the master disk substrate has a first...
US20090311558 MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD  
A magnetic recording medium that includes: a disc-shaped substrate; and plural magnetization retainers arranged on the disc-shaped substrate in plural circulations around a center of the...
US20070072013 Magnetic recording medium and method for production thereof  
Embodiments of the invention provide ways to manufacture an inexpensive high-density magnetic recording medium. A high-density magnetic recording medium is composed of a flat substrate, a...
US20110300410 Bit-Patterned Magnetic Media Formed in Filler Layer Recesses  
A recessed field is formed surrounding resist columns that are in a pattern of bit patterned magnetic media. A filler layer is formed in the recessed field. The resist columns are removed to leave...
US20120075747 SYSTEM, METHOD AND APPARATUS FOR SHAPE-ENGINEERED ISLANDS OF EXCHANGE SPRING OR EXCHANGE COUPLED COMPOSITE, BIT PATTERNED MEDIA  
A hard disk drive has a magnetic media disk comprising a substrate having an axis, and an exchange coupled, bit patterned media on the substrate arranged in a plurality of tracks. Each of the...
US20090154017 SYSTEM, METHOD AND APPARATUS FOR PATTERNED MEDIA WITH REDUCED MAGNETIC TRENCH MATERIAL  
A bit patterned magnetic media design for reducing the amount of magnetic material located in the trenches between topographic features is disclosed. An intermediate non-magnetic layer is...
US20100173177 MOLD STRUCTURE USED TO PRODUCE DISCRETE TRACK MEDIUM, IMPRINTING METHOD, METHOD FOR PRODUCING DISCRETE TRACK MEDIUM, AND DISCRETE TRACK MEDIUM  
To provide a mold structure used to produce a discrete track medium, including in a surface of the mold structure: a plurality of line pattern forming concave portions which are positioned so as...
US20110085267 Media Design for High TPI for Write Fringing Reduction  
A recording media design having discrete track recording structure where the trenches between tracks are filled with a soft magnetic material is provided. The soft magnetic material provides a low...
US20110235215 PATTERNED MAGNETIC RECORDING DISK WITH HIGH BIT-ASPECT-RATIO AND MASTER MOLD FOR NANOIMPRINTING THE DISK  
A method for making a master mold that is used in the nanoimprinting process to make patterned-media disks with patterned data islands uses guided self-assembly of a block copolymer into its...
US20110200846 METHOD OF MANUFACTURING A MAGNETIC RECORDING MEDIUM HAVING A DISCRETE TRACK STRUCTURE  
A method of manufacturing a magnetic recording medium having a discrete track structure enables the discrete track structure to be fabricated in a simple method with good productivity while...
US20100221582 MAGNETIC RECORDING MEDIUM SUBSTRATE AND MAGNETIC RECORDING MEDIUM  
Provided is a magnetic recording medium substrate appropriate for a discrete medium and capable of fabricating a magnetic recording medium to/from which data can be written or read stably. Coaxial...
US20100157772 DATA STORAGE DEVICES AND METHODS  
A data storage device comprises a substrate having oppositely disposed surfaces and a plurality of volumes arranged along tracks between the surfaces; a plurality of micro-holograms each contained...
US20090214898 MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF  
Embodiments of the present invention help to produce discrete track media and bit patterned media having both excellent recording and reproducing performance and reliability. According to one...
US20110122526 MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM, AND INFORMATION STORAGE DEVICE  
A manufacturing method of a magnetic recording medium includes: forming a magnetic film having an artificial lattice structure by laminating plural types of atomic layers alternately on a...

Matches 1 - 18 out of 18