Abstract: Described are adhesive compositions that contain adhesive polymer and carbon nanotubes; devices (e.g., electronic devices and electronic device enclosures) and compositions that include one of these adhesive compositions; and uses of such adhesive compositions as part of an electronic device.

Abstract: An apparatus includes a recording head for reading and writing data on a data storage medium. The recording head includes a reader having a first media-confronting surface. The recording head also includes a main write pole having a second media-confronting surface that protrudes in front of the first media-confronting surface.

Abstract: An anti-reflection storage medium. The anti-reflection storage medium includes a storage layer and a protective overcoat disposed over the storage later. The protective overcoat has a first refractive index value that is matched to a second refractive index value of the storage layer to reduce reflection of incident light applied to the storage medium when data is written to the storage layer of the storage medium.

Abstract: Apparatus and method for heat assisted magnetic recording (HAMR). In some embodiments, a write element has a magnetic write coil that writes a magnetic pattern to a recording layer of a data recording surface. A light delivery mechanism imparts heat in the form of electromagnetic energy to the data recording layer during operation of the write element. A radiation detector detects radiation power emitting from the recording layer responsive to the operation of the light delivery mechanism. A control circuit determines a direct temperature of the recording layer responsive to the detected radiation power, and as necessary, adjusts a power input to the light delivery mechanism responsive to the determined temperature. The radiation detector may be an infrared photodetector with a graphene-based detection layer. The photodetector may be disposed between a write pole and a return pole of the write element.

Abstract: Described are filters useful in a hard disk drive of a comparable electronic device that requires a highly contaminant-free environment for operation, particularly to these devices in combination with the filter, wherein the filter contains graphene.

Abstract: An apparatus comprises magnetic recording disk surfaces and magnetic recording heads comprising a leading and a following head. A controller moves the heads so that the leading head, at a passive fly height, follows a first track of a first disk surface containing a passive thermal asperity (PTA), and the following head, at a passive fly height, follows a first track of a second disk surface. The PTAs on tracks of the second disk surface define virtual PTAs on corresponding tracks of the first disk surface. The controller moves the heads away from the respective first tracks and to neighboring tracks to avoid the PTA and virtual PTAs. The controller is configured to move the heads back to the respective first tracks so that a write or read operation can be performed by the leading head.

Abstract: An anti-reflection storage medium. The anti-reflection storage medium includes a storage layer and a protective overcoat disposed over the storage later. The protective overcoat has a first refractive index value that is matched to a second refractive index value of the storage layer to reduce reflection of incident light applied to the storage medium when data is written to the storage layer of the storage medium.

Abstract: The present invention provides a method for increasing storage capacity of a disc drive by physically skewing a transducer in relation to a slider supporting the transducer. The physical skew angle of the transducer is configured to provide a predetermined zero skew position on the medium, which is capable of providing an increased storage capacity to the medium. To ascertain this zero skew position, a storage density or storage capacity of the medium may be ascertained for each of various zero skew positions on the medium. A desired storage density or capacity level is selected according to storage capacity requirements and the corresponding zero skew position is ascertained. The corresponding zero skew position may be implemented by physically skewing a transducer relative to a slider.

Abstract: The present invention provides a method for increasing storage capacity of a disc drive by physically skewing a transducer in relation to a slider supporting the transducer. The physical skew angle of the transducer is configured to provide a predetermined zero skew position on the medium, which is capable of providing an increased storage capacity to the medium. To ascertain this zero skew position, a storage density or storage capacity of the medium may be ascertained for each of various zero skew positions on the medium. A desired storage density or capacity level is selected according to storage capacity requirements and the corresponding zero skew position is ascertained. The corresponding zero skew position may be implemented by physically skewing a transducer relative to a slider.