Abstract: A disc cartridge includes a disc-shaped recording medium accommodated in a cartridge main body having a lower shell and an upper shell overlapping each other, a disc access opening formed from one outside edge part of the lower shell to a central portion thereof to expose a belt-shaped region of the disc-shaped recording medium accommodated in the cartridge main body from the central region thereof to at least the outside edge part region thereof, and a reinforcing member formed independently of the upper shell and fixed to the inner surface of the upper shell so as to cross a portion located at the outside edge part of the lower shell in the disc access opening at the position where the reinforcing member does not overlap the disc-shaped recording medium accommodated in the cartridge main body in the thickness direction thereof.

Abstract: A piezoelectric ceramic and a piezoelectric device capable of being fired at a low temperature and improving piezoelectric properties are provided. The piezoelectric ceramic and the piezoelectric device includes Pba[(Znb/3Nb2/3)xTiyZrz]O3 (where 0.94?a?1.02, 1<b?3, x+y+z=1, 0.05?x<0.125, 0.275<y?0.5, 0.375<z?0.6) or (Pbe·fMef)[(Zng/3Nb2/3)uTivZrw]O3 (where 0.96?e?1.03, 0.01?f?0.1, 1<g?3, u+v+w=1, 0.05?u<0.125, 0.275<v?0.5, 0.375<w?0.6, and Me indicates Sr, Ba or Ca). When an excessive amount of Zn is included, the firing temperature can be lower, and the piezoelectric properties can be improved.

Abstract: Provided is a thin-film piezoelectric element which reduces the influence of an oxide film left on the electrode film on the degradation of element characteristics, and a method of making the thin-film piezoelectric element. The thin-film piezoelectric element has ZrO2 as the main component of the outermost layer of the oxide film which covers the laminate. Young's modulus of the ZrO2 is 190 GPa, giving a significantly low value compared with Young's modulus of MgO, 245 GPa. Consequently, the influence of the oxide film on the reduction in the displacement magnitude of the piezoelectric film is smaller than the influence of the MgO thin film left in the conventional thin-film piezoelectric element. As a result, the thin-film piezoelectric element decreases the influence of the oxide film on the degradation of element characteristics compared with the conventional thin-film piezoelectric element.

Abstract: A dielectric ceramic composition comprising a main component including 53.00 to 80.00 mol % magnesium oxide converted to MgO, 19.60 to 47.00 mol % titanium oxide converted to TiO2 and 0.05 to 0.85 mol % manganese oxide converted to MnO. This dielectric ceramic composition may comprises 0.00 to 0.20 mol % of at least any one of vanadium oxide, yttrium oxide, ytterbium oxide or holmium oxide converted to V2O5, Y2O3, Yb2O3 and Ho2O3 respectively.

Abstract: A Head Arm Assembly includes a head slider having at least one head element, an arm member for supporting the head slider at one end section, an actuator, mounted to the other end section of the arm member for rotationally moving the arm member in a direction substantially parallel with a recording medium surface around a horizontal rotation axis of the arm member, a load generation unit for generating a load for energizing the head slider in a direction toward the recording medium surface by rotationally moving the arm member in a direction substantially orthogonal to the recording medium surface around a vertical rotation axis, and a limiter unit for restraining the arm member from rotationally moving more than a predetermined limit around the vertical rotation axis in a direction away from the recording medium surface.

Abstract: A solar cell comprises a substrate, and a metal electrode layer, a p-i-n junction, and a transparent electrode layer which are successively laminated on the substrate. The p-i-n junction comprises an n layer, an i layer, and a p layer which are laminated in this order. The i layer is made of an amorphous iron silicide film containing hydrogen in accordance with the present invention, and is formed on the n layer by supplying an iron vapor into a plasma of a material gas in which a silane type gas and a hydrogen gas are mixed. In the i layer, dangling bonds of silicon atoms and/or iron atoms are terminated with hydrogen, whereby a number of trap levels which may occur in the amorphous iron silicide film are eliminated.

Abstract: The present invention provides an electrode for an electric double layer capacitor which is considerably excellent in adhesive property between an electrode layer and an etched aluminum foil current collector. An electrode for a capacitor, which comprises a current collector, an undercoat layer on the current collector, and an electrode layer on the undercoat layer, wherein the current collector is made of an aluminum foil; the undercoat layer comprises at least electrically conductive particles (P) and a binder (B) in a weight ratio P/B of 0.25 to 2.33, and the binder (B) comprises a fluorine-containing polymer as a main component; and the electrode layer comprises at least a carbon material and a binder.

Abstract: A surface acoustic wave device is provided with an input signal electrode 15 and an output signal electrode 16 to and from which an electric signal is inputted or outputted; a first surface acoustic wave resonator 18 including an input terminal 18a connected to the input signal electrode 15 and having a plurality of comb electrodes, an output terminal 18b connected to the output signal electrode 16 and having a plurality of comb electrodes, a common terminal 18c which has a plurality of comb electrodes and which forms interdigital transducers A and B together with the comb electrodes of the input terminal 18a and the comb electrodes of the output terminal 18b; and a second surface acoustic wave resonator 19 connected between the common terminal 18c of the first surface acoustic wave resonator 18 and a pair of grounding terminals 17.

Abstract: A high recording density magnetic recording medium and a manufacturing method therefor are provided. The dilution stability during preparation of magnetic paint is improved and, thereby, even when the magnetic paint concentration is lowered, no problem occurs with the surface roughness and the output of the thin magnetic layer. The magnetic recording medium includes at least a magnetic layer on one surface of a non-magnetic support, wherein the magnetic layer contains a magnetic powder, a vinyl chloride resin having a degree of polymerization of at least 270 and an aliphatic polyester polyurethane resin to serve as binder resins, an aromatic compound having a substituent R (where R is —COOH, —(COOH)2, —OPO(OH)2, —PO(OH)2, or —SO3H), and a phosphoric acid ester. The ratio of binder resins in the magnetic paint is set at 2.0 percent by weight or less relative to a total sum of the binder resins and a solvent.

Abstract: The present invention provides a method of producing an electrode for an electric double layer capacitor, which yields the electrode with an electrode layer having a higher density by calendering treatment. A method of producing an electrode for a capacitor, which comprises at least a current collector and an electrode layer on the current collector, the method comprising the steps of: applying an electrode layer coating material which comprises at least a carbon material, a binder and a solvent, onto the current collector to form an electrode coating layer; drying the electrode coating layer on the current collector to set the amount of the solvent remaining in the electrode coating layer within a range of 5 to 35% by weight of the layer; and subjecting the electrode coating layer after the drying to calendering treatment to yield an electrode layer.

Abstract: When a space region shorter than the radius of a beam spot is formed, pre-heating with an assist pulse is not performed, and an off pulse pattern is fixed at a base power level. When a space region longer than the radius of the beam spot and shorter than the diameter of the beam spot is formed, an assist pulse is applied to the end of the space region to be formed. The length of the assist pulse is made greater, the longer the space region to be formed. Further, when a space region longer than the diameter of the beam spot is formed, an assist pulse is applied to the end of the space region to be formed, and the length of the assist pulse is kept constant regardless of the length of the space region to be formed.

Abstract: A multilayer capacitor includes: a dielectric element; a plurality of first internal electrodes and a plurality of second internal electrodes alternately arranged in the dielectric element while being separated from each other by dielectric layers; a first outer columnar electrode extending from a surface of the dielectric element to reach the first internal electrode on an outermost layer; a second outer columnar electrode extending from the surface of the dielectric element to reach the second internal electrode on an outermost layer; a first inner columnar electrode connected to all the first internal electrodes and having a cross-sectional area larger than a cross-sectional area of each of the first and second outer columnar electrodes; a second inner columnar electrode connected to all the second internal electrodes and having a cross-sectional area larger than a cross-sectional area of each of the first and second outer columnar electrodes; first external electrodes arranged in an island form on the sur

Abstract: A speaker has a vibration device disposed under a floor approximately in the shape of a board, which can vibrate in the direction of thickness. The floor can vibrate at least around the vibration device. Since the vibration device vibrates the floor, sound is emitted from a floor surface, and hence the sound is transmitted to a wide area above the floor surface.

Abstract: An optical recoding medium including a plurality of information layers laminated on a substrate 11 through an intermediate layer 12, at least one of the information layers other than the most distant information layer from a light incidence plane of a laser beam having a fourth dielectric film 31, a reflection film 32, a third dielectric film 33, a recording film 34, a second dielectric film 35, a first dielectric film 36 and a radiation film 37, and the fourth dielectric film 31 and the third dielectric film 33 containing zirconium oxide as a main component

Abstract: A torque sensor includes a substantially tubular giant magnetostrictive member, a shaft passing through the inner bore of the giant magnetostrictive member and capable of transmitting torque to the giant magnetostrictive member, and a detection coil for detecting changes in the magnetic permeability or remnant magnetization of the giant magnetostrictive member. Torque changes of the shaft are detected as changes in the magnetic permeability or remnant magnetization of the giant magnetostrictive member, based on the deformation of the giant magnetostrictive member. The torque sensor enables a reduction in the number of components and costs, as well as detection of torque changes with high sensitivity.

Abstract: A tape reel includes: a hub in the shape of a bottomed-cylinder with a disc-like lower flange integrally formed at a lower end thereof and an opening formed at an upper end thereof; and an upper flange that is disc-like, has a center hole formed therein, and has a ring-shaped protrusion formed so as to protrude at a rim of the center hole, the protrusion being fitted into and fixed at the opening of the hub. The hub includes a plurality of reinforcing ribs that are respectively formed in an up-down direction on an inner circumferential surface of the hub.

Abstract: The present invention provides a method of producing an electrode for electric double layer capacitor, which yields the electrode having excellent electrode characteristics with good production suitability, using a coating material exhibiting a good dispersion state. A method of producing an electrode for a capacitor, the method comprising the steps of: applying an undercoat layer coating material which comprises at least electrically conductive particles, a binder and a solvent onto the current collector to form the undercoat layer; and applying an electrode layer coating material which comprises at least a carbon material, a binder and a solvent onto the undercoat layer to form the electrode layer. In the preparation of the undercoat layer coating material and/or in the preparation of the electrode layer coating material, dispersing treatment is conducted with ceramic beads as a dispersing medium.

Abstract: The invention provides an electrode forming method with steps of arraying chip-style electronic components on an arraying flat bed thereby positioning and aligning the components, lowering a film coated with an adhesive in relative manner together with an adhering top plate parallel to the arraying flat bed thereby adhering ends of the positioned and aligned chip-style electronic components to the adhesive, then lowering the first film to which the chip-style electronic components are adhered in relative manner together with a coating top plate parallel to a coating flat bed provided with a conductive paste layer of a constant thickness thereby pressing the other ends of the chip-style electronic components to the coating flat bed and coating the ends of the electronic components with the conductive paste.

Abstract: A thin-film magnetic head is formed on a support and is provided with a reproducing head part, a recording head part, and a heater for generating heat upon energization. A medium-opposing surface S of the magnetic head is polished while energizing the heater or recording head part.

Abstract: Provided are a thin film magnetic head and a method of manufacturing the same, which can prevent an output decrease without impairment of productivity and other characteristics, while adapting to an increase in a recording density. In the thin film magnetic head, an MR film is sandwiched in between first and second gap films having electrical insulating properties, which are sandwiched in between first and second shield layers. The first shield layer has an inner layer and an outer layer laminated in order from the MR film, and the second shield layer has an inner layer and an outer layer laminated in order from the MR film. The respective inner layers of the first and second shield layers have hardness higher than that of the respective outer layers thereof so as to prevent the first and second shield layers from deforming.