Abstract: Correction of recording power is appropriately performed to an optical disk. The recording power correction method includes a step of temporarily stopping data recording into an optical disk, reproducing a result of the relevant data recording, and specifying a detection pattern including a predetermined code in a reproduction signal; a step of detecting a signal state in the reproduction signal corresponding to the detection pattern; and a determination step of determining at least a correction direction of recording power in the data recording based on the detected signal state and a reference state specified from the detection pattern. Processing is performed on the basis of the detection pattern in this way, thereby the method can cope with even a recording and reproduction system for optical disk employing the PRML signal processing method.

Abstract: An optical information recording medium is provided having a superior jitter property even when an organic substance is used for a recording layer. The optical information recording medium has a substrate having a penetrating hole in a central portion thereof and a spiral pre-groove provided in one surface of the substrate, a reflection layer provided on the surface of the substrate in which the pre-groove is provided, a recording layer which is provided on the reflection layer and which is composed of an organic substance including a dye, and a light transmissive cover layer provided on the recording layer. In the optical information recording medium, the cover layer has an elastic modulus of 40 MPa or less at 25° C. in an interface region facing the recording layer.

Abstract: An optical information recording medium comprises at least a substrate on which a groove is formed in a recording area, a recording layer comprising an organic dye, and a reflective layer. The recording area has a preformat area and a data area, and the groove in the preformat area is narrower or shallower than that in the data area.

Abstract: A micro-cantilever of a simple structure and capable of obtaining a larger displacement at a low voltage including a plate-like piezoelectric substrate having electrode films as an upper electrode and a lower electrode formed on both surfaces thereof, a plate-like resilient member in close contact with the piezoelectric substrate on the side of the lower electrode and a support for supporting a driving member in a cantilever manner, in which a thin-walled portion is formed to the vicinity of a base portion of the driving member supported by the support.

Abstract: An optical information recording medium includes a disk-like substrate having a hole in a central portion thereof, and a light-reflective layer, a dye recording layer containing an organic dye, an intermediate layer composed of an inorganic substance, and a light-transmissive layer composed of a resin disposed in that order on one principal surface of the substrate, in which information is recorded/reproduced by irradiation of laser light from the light-transmissive layer side. In the optical information recording medium, the light-transmissive layer covers a surface of the intermediate layer from an inner peripheral edge of the intermediate layer to an outer peripheral edge of the intermediate layer, and a vicinity of an outer peripheral edge of the light-transmissive layer is in contact with the substrate in an annular region extending around an outer peripheral side of the substrate.

Abstract: Dielectric ceramics represented as: CaxZrO3+aMn+bLi+cB+dSi and comprising: based on 100 mol of CaxZrO3 (where 1.00?x?1.10), 0.5?a?4.0 mol, and 6.0?b+c+d?15.0 mol, in which 0.15?b/(c+d)?0.55, and 0.20?d/c?3.30 or multi-layer ceramic capacitor using the same.

Abstract: An optical information recording medium having a disk-shaped substrate formed with spiral grooves on one main surface, and having an optical reflection layer formed with grooves at the surface corresponding to the grooves of the substrate for reflecting a laser beam, an optical recording layer, a protective layer, and an optical transparency layer in this order on the main surface thereof. The optical information recording medium has a main information area and a sub-information area to the inner circumferential side thereof, in which the track pitch TrB of the grooves in the sub-information area is about 0.32 ?m or less, and the depth D of the grooves and the half-band width W of the grooves satisfy a relation represented by: W?2D+70, whereby the difference between the reflectivity at the land surface and the reflectivity at the groove surface in the sub-information area can be restricted to less than 30%, thereby preventing occurrence of mis-decipherment for BCA marks.

Abstract: A multi-layer ceramic capacitor has a temperature characteristic satisfying an X8R property and has a high specific resistance under a high temperature circumstance, in which the dielectric ceramic composition forming the dielectric ceramics is expressed by a formula: BaTiO3+aMgO +bMOx+cReO3/2+dSiO2, wherein MgO represents MgO conversion, MOx represents oxide conversion for 1 atom in 1 molecule of at least one metal selected from V, Cr, and Mn, ReO3/2 represents oxide conversion for 1 atom in 1 molecule of at least one rare earth metal selected from Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Y, and SiO2 represents SiO2 conversion, and wherein 0.4?a?3.0 mol, 0.05?b?0.4 mol, 6.0?c?16.5 mol, 3.0?d?5.0 mol, 2.0?c/d?3.3, based on 100 mol of BaTiO3.

Abstract: A transformer for use in a power supply has a primary winding, a secondary winding, a bobbin on which the primary and secondary windings are separately wound, and a core subassembly mounted in the bobbin. An opening is formed in the cylindrical portion of the bobbin, and an inside core in the magnetic core insertion hole and an outside core located outside the hole are adhesively bonded together via a spacer through the opening in the cylindrical portion.

Abstract: One inventive aspect relates to a high-frequency magnetic thin film capable of working in a GHz-level band, and an electronic device comprising the film. The film comprises a magnetic layer and an insulating layer that are laminated alternately. The magnetic layer includes a first magnetic layer and a second magnetic layer. The first magnetic layer has a higher anisotropic magnetic field than the second magnetic layer, and the second magnetic layer has a higher saturation magnetization than the first magnetic layer.

Abstract: One inventive aspect relates to a method which easily distinguishes copycat products that are difficult to distinguish by identifying only a media ID. A media ID and other attribute data are read out of a reference optical recording medium, and then a media ID and other attribute data are read out of an optical recording medium that is a target for separation. They are compared with each other in a data record processing section to determine whether data is data matched or not matched, and the result is displayed on a display section.

Abstract: An optical phase modulation circuit includes an optical phase modulation element, an optical bandpass filter, and an optical directional coupler, wherein control light with a wavelength of ?C is coupled with probe light with a wavelength of ?P using the optical directional coupler and input to the optical phase modulation element, the probe light that has been phase modulated by the optical phase modulation element is extracted through the optical band pass filter, and the phase of the probe light is modulated in response to the intensity of the control light.

Abstract: An inductor 10 has a magnetic body 11 of a rectangular solid shape and a coil 12 embedded in the magnetic body 11. The coil 12 integrally has a part constituted by a helically wound coil wire, two leader parts 12a provided at the two ends of the wound part, and terminal parts 13 connected to the ends of the leader parts and wider than the leader parts 12a, where the boundary between each leader part 12a and each terminal part 13 is positioned in the magnetic body 11, and the end of each terminal part 13 is exposed from the corresponding side face of the magnetic body 11 and folded in an L shape along the side face and bottom face.

Abstract: A wire wound electronic part includes a ferrite core comprising ferrite having a columnar wire wound core and flanges formed at both ends thereof, a coil conductor wound around the wire wound core of the ferrite core, and at least a pair of terminal electrodes having a Cu conduction layer disposed to the outer surface of the flange, in which both ends of the coil conductor wound around the wire wound core are conductively connected to the terminal electrodes. The terminal electrode is formed by coating an electrode paste containing a Cu powder and a glass frit to the outer surface of the ferrite core, and then applying a heat treatment to the ferrite core. There is a reaction layer of a portion of the ferrite core and the glass frit at a boundary between the ferrite core and the Cu conduction layer. The terminal electrodes has the peel strength identical with that of an existent Ag terminal electrode, without forming a plate layer.

Abstract: A piezoelectric drive unit and a piezoelectric drive element are provided, which are compact and lightweight, and able to be stably displaced and positioned, in addition, efficiently driven even at low voltage. One end of a rod is fixed to an approximate center of a main surface of a piezoelectric drive element (drive element). The drive element is in a configuration where two element structures are incorporated by dividedly forming part of internal electrodes being alternately layered with a plurality of pieces of piezoelectrics, and has two regions divided with the center of the element as an origin. When signal are inputted into the internal electrodes via terminal electrodes such that a phase is shifted by 90 degrees between the two regions, the rod is rotated. When a tip of the rod is biased to be disposed by a spring such that it is pressed to a side face of a shaft for guiding a sliding frame of a lens, the lens slides along the shaft with rotation of the rod.

Abstract: A polishing pad includes a polishing layer having abrasive grains dispersed in a resin and is characterized in that the resin is a resin containing ionic groups in the range of 20 to 1500 eq/ton.

Abstract: An optical information recording reproduction device is disclosed, in which aberration detection is stably performed, so that an excellent record grade can be achieved. An RF signal is subjected to differential operation along a time axis of the signal, the RF signal being obtained from reflected light including primary light situated in the periphery of a primary dark ring enclosing zero-order light in a central portion of a beam spot formed on a pit; pulse signal waveforms are represented in an absolute value form, the pulse signal waveforms being generated in correspondence with front and rear ends of the beam spot on the time axis; the pulse signal waveforms represented in the absolute value form are stored into a storage medium; the stored, two pulse signal waveforms are combined to generate a beam profile of the beam spot formed on an optical recording medium; and a beam spot diameter, spherical aberration, and coma aberration of a record laser beam are adjusted based on the beam profile.

Abstract: One inventive aspect relates to an optical information recording medium which has a high gloss and ensures, even after printing, a gloss substantially equal to that before the printing, and which can increase quality of a printed image. The optical information recording medium has an ink absorbing layer made of a porous film, which is formed on an outermost layer on a surface thereof on the side opposed to a recording/reproducing surface of the optical information recording medium. The optical information recording medium has a surface gloss of the ink absorbing layer is about 25 or more in terms of 60° specular gloss before printing and has a level after the printing which is equal to or higher than a level before the printing.

Abstract: A recording condition on a media is optimized by introducing a new evaluation index. An apparatus for optical information recording and reproducing includes: a measurement means for recording codes including a specific code in a medium for optical information recording and reproducing, reproducing the codes from the medium for optical information recording and reproducing, and measuring, from a reproduced signal of the codes, a peak value of amplitude of a reproduced signal related to the specific code, the peak value being a maximum value or a minimum value of the amplitude of the reproduced signal related to the specific code; a statistic calculation means for calculating preset statistic by using a plurality of peak values at the same or different recording places, the plurality of peak value having been obtained by the measurement means; and a condition decision means for deciding at least one of a recording laser power condition and a recording pulse condition by using the statistic.

Abstract: Components having different heights are installed in a multilayer substrate using a metal core layer formed by bonding a plurality of metal layers. The metal core layer includes through-holes and a spot-faced portion. Passive components and an active component are disposed in the through-holes and the spot-faced portion, respectively. These components are connected to conductive patterns formed on wiring layers, with connecting vias therebetween. Contact faces of each component with the connecting vias are controlled so as to be disposed at the same level with the metal layers.