Abstract: An antireflective structure having a higher antireflective effect compared with those of conventional antireflective structures is produced by a simple process. The antireflective structure (10) includes a plurality of concavities (2a) each having a plurality of convexities (1a) thereon, and a pitch between the plurality of convexities (1a) and a pitch between the plurality of concavities (2a) are smaller than a wavelength of light incident to the antireflective structure (10).

Abstract: In an optical information storage medium reproduction apparatus reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus requires.

Abstract: A heating cooking device 1 includes: a heating unit 5 which heats an object to be heated C; an electromagnetic wave generation unit 15 which radiates electromagnetic waves E having a frequency of 100 GHz to 120 THz towards the object to be heated C for determining a cooking state of the object to be heated C; an electromagnetic wave detection unit 16 which detects the electromagnetic waves E radiated by the electromagnetic wave generation unit 15; and a CPU 13 which determines a cooking state of the object to be heated C based on a signal output by the electromagnetic wave detection unit 16 which detects the electromagnetic waves E. The heating cooking device 1 detects the electromagnetic waves E, an intensity of which is changed by striking the object to be heated C and determine the cooking state of the object to be heated C.

Abstract: In information recording areas of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed to partially overlap with each other in the radial direction. A first recording and a second recording are selectively performed. In the first recording, a first recording column, a second recording column (the outer adjacent recording column of the first recording column) and a third recording column (the outer adjacent recording column of the second recording column) are formed so that the radial positions of the inner and outer circumferential edges of the first recording column, those of a second recording column, and those of a third recording column satisfy R1in<R2in<R3in<R1out<R2out<R3out. In the second recording, a non-overlapping portion which does not overlap with any of the recording columns in the radial direction is formed on each of the recording columns.

Abstract: In an optical information storage medium reproduction apparatus reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus requires.

Abstract: A magnetic recording element records information by applying a recording magnetic field to a magnetic recording medium having an information recording area to form a plurality of recording columns extending in a first direction. Recording by the magnetic recording element is performed so that a first recording column and a second recording column formed before the first recording column partially overlap each other in a second direction perpendicular to the first direction, and that a recording start position of the first recording column is positioned upstream, relative to the recording direction, of a recording start position of the second recording column.

Abstract: In an optical information storage medium reproduction apparatus for reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power for reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power for reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus requires.

Abstract: Disclosed is a magnetic recording/reproduction device 2 including: a recording/reproduction head 7; and a recording/reproduction head 7 for detecting a leakage magnetic field of each of the plurality of magnetic recording cells 1 so as to reproduce information, the recording/reproduction head 7 carrying out the recording on the magnetic recording medium 4 so that the magnetic recording medium 4 includes continuous recording regions that (i) satisfy Nmin?2 and that (ii) include a continuous recording region that satisfies N?n×Nmin, where N represents a number of magnetic recording cells 1 in a continuous recording region; Nmin represents a minimum value for N; and n represents a positive integer, the continuous recording regions each being a region on a reproduction track in which region magnetic recording cells 1 sharing an identical magnetization direction are sequentially arranged in a circumferential direction of the magnetic recording medium 4.

Abstract: This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method. Information is recorded as marks and spaces coded by RLL(1,7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 ?m. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.

Abstract: This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method. Information is recorded as marks and spaces coded by RLL(1,7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 ?m. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.

Abstract: A reproduction method for reproducing a rewritable and readable optical information storage medium in such a manner that an information recording layer is disclosed. The reproduction method comprising: reading setting information of reproduction laser power for each information recording layer of the rewritable and readable optical information storage medium, the setting information being stored in the rewritable and readable optical information storage medium; and setting, based on the setting information thus read, reproduction laser power for the information recording layer that is closest to a reproduction-laser-incident surface to be not less than 1.0 mW but less than 1.1 mW.

Abstract: A magnetic recording/reproducing apparatus 100 includes: a magnetic head 1; a magnetic recording medium 2; a spindle 3 and a spindle motor 4; a suspension arm 5; a voice coil motor 6; and a control unit 7. The control unit 7 has: a motor driver 8; a head amplifier 9; a read/write channel 10; a laser driver 11; and a controller 12. The controller 12 has: a preliminary recording unit 13; a judgment unit 14; an extraction unit 15; a drive condition determining unit 16; and a preliminary recording terminating unit 17. Based on a reproduction signal evaluation value obtained using these units and a predetermined reference value, a drive condition is determined which is suitable for recording onto the magnetic recording medium 2.

Abstract: A magnetic recording medium includes: tracks each including a magnetic recording section in which information is recorded and a non-magnetic-recording section in which no information is recorded; and nonmagnetic guide sections magnetically separating the tracks from one another. The non-magnetic-recording section is formed integrally with nonmagnetic guide sections. The magnetic recording medium includes at least one pair of a first region in which at least a portion of each of the respective non-magnetic-recording sections of first and second tracks and a portion of a magnetic recording section of a third track coincide with one another at a position along a direction in which the tracks extend; and a second region in which at least a portion of each of the respective non-magnetic-recording sections of the first and third tracks and a portion of a magnetic recording section of the second track coincide with one another at a position along the direction in which the tracks extend.

Abstract: A magnetic recording apparatus includes: a magnetic recording medium having a recording surface on which a plurality of magnetic recording cells magnetically isolated from each other are arranged; a magnetic writing element recording information to the magnetic recording cells under a condition in accordance with setting information; a magnetic reading element reproducing information recorded in the magnetic recording cells; a memory storing the setting information for writing; and a processor for executing a program code.

Abstract: This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method. Information is recorded as marks and spaces coded by RLL(1,7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 ?m. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.

Abstract: In an optical information storage medium reproduction apparatus (10) for reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power for reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power for reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus (10) requires.

Abstract: In an optical information storage medium reproduction apparatus (10) for reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power for reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power for reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus (10) requires.

Abstract: In an optical information storage medium reproduction apparatus (10) for reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power for reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power for reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus (10) requires.

Abstract: In information recording areas of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed to partially overlap with each other in the radial direction. A first recording and a second recording are selectively performed. In the first recording, a first recording column, a second recording column (the outer adjacent recording column of the first recording column) and a third recording column (the outer adjacent recording column of the second recording column) are formed so that the radial positions of the inner and outer circumferential edges of the first recording column, those of a second recording column, and those of a third recording column satisfy R1in<R2in<R3in<R1out<R2out<R3out. In the second recording, a non-overlapping portion which does not overlap with any of the recording columns in the radial direction is formed on each of the recording columns.

Abstract: In an information recording area of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed so as to partially overlap with each other in the radial direction. Each recording column has an overlapping portion which partially overlaps with either of the adjacent recording columns in the radial direction, and a non-overlapping portion which does not overlap with any of the recording columns in the radial direction.