7results about "Microscopic probe carrier recording" patented technology

To provide a ferroelectric storage device capable of stabilizing a torque of a ferroelectric recording medium drive unit even when used for a long time and suppressing a decrease in continuity in the ferroelectric recording medium drive unit.SOLUTION: A ferroelectric storage device according to the present invention includes a ferroelectric recording medium, a conductive probe, a probe slider, and a ferroelectric recording medium drive unit. The ferroelectric recording medium drive unit has a bearing sleeve inside a housing and a conductive shaft member inserted into an inner peripheral surface of the bearing sleeve, a gap between the inner peripheral surface of the bearing sleeve and an outer peripheral surface of the shaft member contains lubricating oil that generates pressure by dynamic pressure to support the shaft member in a radial direction in a non-contact manner, the housing has a conductive housing bottom portion that faces the shaft end of the shaft member, a convex or concave spherical surface is included on at least one of the shaft end portions of the shaft member and the bottom portion of the housing, and the lubricating oil contains a conductive powder containing an inorganic material.SELECTED DRAWING: Figure 8

To provide a ferroelectric storage device, a method for reading information in the ferroelectric storage device, and a method for writing and reading information in the ferroelectric storage device that can read information stored in a ferroelectric recording medium at a high speed.SOLUTION: A ferroelectric storage device according to the present invention comprises: a ferroelectric recording medium that has a ferroelectric layer; a conductive probe; a probe slider; a ferroelectric recording medium driving unit; and a recording reproduction signal processing unit that is connected with the conductive probe and performs processing on an information writing signal and an information reading signal. In detecting an electric charge on the ferroelectric layer, the recording reproduction signal processing unit applies positive and negative bias voltages to the conductive probe, and measures a tunnel current flowing between the conductive probe and the ferroelectric layer to detect the electric charge on the ferroelectric layer.SELECTED DRAWING: Figure 10

To provide a ferroelectric storage device that can read information stored in a ferroelectric recording medium at a high speed.SOLUTION: A ferroelectric storage device according to the present invention comprises: a ferroelectric recording medium; a conductive probe that performs writing and reading of information with respect to the ferroelectric recording medium; a probe slider that causes the conductive probe to move in a floating state on a surface of the ferroelectric recording medium; a ferroelectric recording medium driving unit that rotates the ferroelectric recording medium; and a recording reproduction signal processing unit that performs processing on an information writing signal and an information reading signal with the conductive probe. The recording reproduction signal processing unit detects a signal generated due to interatomic force between the conductive probe and the ferroelectric recording medium.SELECTED DRAWING: Figure 8

To provide a ferroelectric storage device capable of controlling a distance between a probe and a recording medium with high accuracy and high speed.SOLUTION: A ferroelectric storage device according to the present invention includes: a ferroelectric recording medium; a conductive probe; a probe slider; a piezoelectric element or an electrostrictive element which is provided on the probe slider and in which the conductive probe is connected so as to face the ferroelectric recording medium; and a control unit that controls a voltage applied to the piezoelectric element or the electrostrictive element to expand and contract the piezoelectric element or the electrostrictive element and adjusts a distance between the ferroelectric recording medium and the conductive probe. The control unit controls the voltage applied to the piezoelectric element or the electrostrictive element based on a read signal from the conductive probe to expand and contract the piezoelectric element or the electrostrictive element.SELECTED DRAWING: Figure 9

To suppress the occurrence of errors at the time of recording or reproducing data by reducing the difference in level of a lubricant on the surface of a magnetic recording medium.SOLUTION: According to an embodiment, there is provided a method of controlling a heat assisted magnetic recording and reproducing device in which a heat assisted magnetic recording head including a main magnetic pole, a near field transducer that generates near field light, a waveguide that propagates light to the near field transducer, and a laser light source that supplies light to the waveguide, and a heat assisted magnetic recording medium including a lubricant layer on a recording surface facing the heat assisted magnetic recording head are mounted, the method including: And performing a smoothing process of a surface of the lubricant layer by operating the thermally assisted magnetic recording head.SELECTED DRAWING: Figure 1

To provide a ferroelectric storage device that can achieve improvement in recording density, reduction in a size per unit storage capacity, and acceleration of a speed required for recording and reproduction of information, and can suppress increase in energy consumption.SOLUTION: A ferroelectric storage device according to the present invention comprises: a ferroelectric recording medium; a conductive probe that performs writing and reading of information with respect to the ferroelectric recording medium; a probe slider that causes the conductive probe to move in a floating state on a surface of the ferroelectric recording medium; a ferroelectric recording medium driving unit that rotates the ferroelectric recording medium; and a recording reproduction signal processing unit that performs processing on an information writing signal and an information reading signal with the conductive probe. The recording reproduction signal processing unit records information on multiple values including three or more values in the one smallest recording area of the ferroelectric recording medium, and performs reading of the recorded information on the multiple values.SELECTED DRAWING: Figure 8

To provide a data management system that can read information stored in a ferroelectric recording medium at high speed with high recording density and can have high expandability.SOLUTION: A data management system according to the present invention is for storing data on a high-speed communication network, including: at least one external storage device having a data management unit including an internal storage device and a ferroelectric recording medium, in which the data management unit stores data on the high-speed communication network in the external storage device, and stores metadata used for reading the stored data in the internal storage device.SELECTED DRAWING: Figure 30