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7362693 Near-field optical storage medium and optical data storage system therefor  
An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for...
7362692 Method and system of mass producing double-sided optical discs  
Double-sided optical discs, such as a DVD-18 disc, are mass produced with data tracks on each layer. The tracks on one side of the discs are oriented along one spiral while the tracks on the other...
7327648 Player with rotational control for double-sided optical discs  
A double-sided optical disc, such as a DVD-18 disc, is formed with data tracks on each layer. The tracks on one side are oriented along one spiral while the tracks on the other side are oriented...
7294446 Digital analog recording using near field optical imaging  
A data storage device and method of making the storage device wherein a digital and analog image may be stored thereon. The storage device includes a photosensitive layer capable of retaining an...
7272104 Optical recording medium having dual information surfaces  
An optical recording medium is provided which includes a first substrate having a first information surface, a semitransparent reflection film formed on the first information surface of the first...
7179551 Poly(arylene ether) data storage media  
A storage media comprises: a substrate comprising a plastic resin portion, wherein to plastic resin portion comprises poly(arylene ether) and a styrene material selected from the group consisting...
7151734 Player with two read heads for double-sided optical discs  
A double-sided optical disc, such as a DVD-18 disc, is formed with data tracks on each layer. The tracks on one side are oriented along one spiral while the tracks on the other side are oriented...
7114947 Optical disk mold tooling for reduced edge wedge  
An optical disk exhibiting no detrimental thickness increase (edge wedge effect) that arises at the outer diameter of an optical disk substrate during an injection molding manufacturing process,...
7087290 Data storage media utilizing a substrate including a plastic resin layer, and method thereof  
In one embodiment, a data storage media comprises: a substrate comprising at least one plastic portion, an edge lift height of less than about 8μ, and an axial displacement peak of less than about...
7054259 Near-field optical storage medium and optical data storage system therefor  
An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for...
7034971 Fabrication of sandwiched construction media  
In one embodiment, holographic data storage medium includes a first thermoplastic substrate portion having a thickness less than approximately 2 millimeters and a second thermoplastic substrate...
6961950 Variable thickness stamper for creation of flat molded substrates  
The invention is directed toward techniques for creating molded substrates for use in various different data storage media. The molded substrates have improved thickness profiles that can improve...
6952391 Optical recording medium having dual information surfaces  
A reproduction apparatus is provided for reproducing information stored on an optical medium. The apparatus includes a light source for illuminating the optical medium, the optical medium having at...
6947366 Optical recording medium having dual information surfaces  
A reproduction apparatus is provided for reproducing information stored on an optical medium. The apparatus includes a light source for illuminating the optical medium, the optical medium having at...
EP1045379B1 Optical disc  
6934238 Optical recording medium having dual information surfaces  
A reproduction apparatus is provided for reproducing information stored on an optical medium. The apparatus includes a light source for illuminating the optical medium, the optical medium having at...
6934237 Optical recording medium having dual information surfaces  
A reproduction apparatus is provided for reproducing information stored on an optical medium. The apparatus includes a light source for illuminating the optical medium, the optical medium having at...
6926198 Wheel calculator  
A wheel chart having at least one rigid disk formed by a compact disk which, in addition to having a mirrored or reflective layer capable of carrying reproducible information, has legible matter on...
6899937 Optical disc  
An optical disc includes a substrate having micro-embossments, in which flat portions referred to as lands, and track guides, referred to as hills, and which protrude from the surfaces of the flat...
6885625 Near-field optical storage medium and optical data storage system therefor  
An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for...
6850345 Sandwich holographic disk construction with thin molded substrates  
In one embodiment, holographic data storage medium includes a first thermoplastic substrate portion having a thickness less than approximately 2 millimeters and a second thermoplastic substrate...
6821460 Two-sided replication of data storage media  
The invention is directed towards techniques for creating optical data storage disks. In one embodiment, the invention provides a simultaneous two-sided rolling bead process. For example, a method...
6798732 Near-field optical storage medium and optical data storage system therefor  
An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for...
6752952 Embossing methods  
In one embodiment, the method far embossing a substrate, includes: heating a first substrate to a temperature above a glass transition temperature; preheating and maintaining a mold at a mold...
6752611 Optical disk mold tooling for reduced edge wedge  
An optical disk exhibiting no detrimental thickness increase (edge wedge effect) that arises at the outer diameter of an optical disk substrate during an injection molding manufacturing process,...
6737144 Optical recording medium having dual information surfaces  
The optical recording medium of this invention includes: a first substrate having a first information surface; a semitransparent reflection film formed on the first information surface of the first...
6715200 Methods for making data storage media  
Methods for forming data storage media and the media formed thereby are disclosed herein. In one embodiment, the method for forming a data storage media, comprises: injection molding a substrate...
6712264 Wheel calculator  
A wheel chart having at least one rigid disk formed by a compact disk which, in addition to having a mirrored or reflective layer capable of carrying reproducible information, has legible matter on...
6678238 Mold for manufacturing double-sided disk shaped articles for storing data  
A mold and a process for use in producing data storage articles such as single substrate double-sided disks. In one configuration, a mold for manufacturing a substrate includes a stamper, at least...
6621787 Optical storage medium having protective layer thicker than wavelength of useable light source  
An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for...
6611365 Thermoplastic substrates for holographic data storage media  
In one embodiment, holographic data storage medium includes a first thermoplastic substrate portion having a thickness less than approximately 2 millimeters and a second thermoplastic substrate...
6582630 Method of fabricating and integrating an optical assembly into a flying head  
Several embodiments of a method for manufacturing an optical assembly for use in an optical flying head are provided. The optical assembly may include a solid immersion lens and a magnetic coil....
6544716 Multilayer optical medium for near-field optical recording and reading  
An electro-optical storage system based on an optical head and a multilayer storage medium in a near-field configuration. The heat generated by absorption of a read/write beam adversely affects the...
6490242 Disk cartridge with dual housing structure  
A data storage disk cartridge having a dual housing structure includes an inner housing that contains a disk, and an outer housing that contains the inner housing. The inner housing is at least...
6489002 Optical recording medium having dual information surfaces  
The optical recording medium of this invention includes: a first substrate having a first information surface; a semitransparent reflection film formed on the first information surface of the first...
6460762 Wheel calculator  
A wheel chart having at least one rigid disk formed by a compact disk which, in addition to having a mirrored or reflective layer capable of carrying reproducible information, has legible matter on...
6449221 Storage media for optical storage systems  
Magneto-optical storage media designed for optical storage systems such as disk drives with optical flying heads. Dielectric layers are designed and implemented to maximize optical coupling between...
6382955 Disc molding apparatus for hubless optical disc having low radial runout  
A disc molding apparatus for forming an optical disc. The apparatus has a disc substrate cavity and a sprue mechanism in fluid communication with the cavity. A removable stamper located on one side...
EP1202267A1 Method and apparatus for reading and writing magneto-optical media  
A method and apparatus for reading from and writing to a magneto-optical disc. The apparatus comprises a first objective lens (414) situated between a first side of the magneto-optical disc (420)...
EP1202266A1 Magneto-optical disk  
A magneto-optical disc is described. The magneto-optical disc comprises a substrate and a magneto-optical recording layer applied over the substrate. The magneto-optical disc further comprises an...
6324130 Disc drive suspension and head  
A magneto-optical (MO) disc drive including a novel suspension, slider body, airbearing surface, and magnetic head. The MO disc drive includes a fine-focus actuator block including an objective...
6319583 Lubricated and overcoated magneto-optical media with improved tribological performance  
Magneto-optical information storage media having improved tribological properties when used in high-density storage devices employing very small head flying heights are formed by providing by a...
6298018 Optical recording and reproducing method optical recording and reproducing device, and optical recording medium  
An optical disk is provided with a recording layer, and with an optical coupling layer on a light-incident side of the recording layer. An optical recording and reproducing device and method...
6280812 Optical recording medium having dual information surfaces  
The optical recording medium of this invention includes: a first substrate having a first information surface; a semitransparent reflection film formed on the first information surface of the first...
6270696 Method of fabricating and integrating an optical assembly into a flying head  
Several embodiments of a method for manufacturing an optical assembly for use in an optical flying head are provided. The optical assembly may include a solid immersion lens and a magnetic coil....
6243350 Optical storage systems with flying optical heads for near-field recording and reading  
Optical storage systems based on air-bearing-suspended optical heads in a near-field configuration. Such a system comprises an optical head for reading and writing data and a head positioning...
6238763 Rewritable optical data storage disk having enhanced flatness  
A rewritable optical recording disk has an increased thickness that is greater than or equal to approximately 1.5 mm. In particular, the disk may have a substrate with a thickness that is greater...
6226233 Magneto-optical system utilizing MSR media  
A system for maximum magneto-optical data storage system is provided. The system utilizes double-sided first surface magnetically-induced super resolution storage media to provide the ability to...
6180201 Rewritable optical data storage disk having enhanced flatness  
A rewritable optical recording disk has a substrate with an increased thickness that is greater than or equal to approximately 1.5 mm and less than or equal to approximately 2.5 mm. The increased...
6154441 Method for centering a hub in an optical disc, and an optical storage system using such disc  
Optical storage system including a disc drive and an optical media having a low radial total indicated runout and method of manufacturing such media. The optical media includes a disc substrate...
Matches 1 - 50 out of 80 1 2 >