Abstract: The invention provides a method of fabricating a thermoelectric device, whereby a grooved block composed of n-type thermoelectric semiconductor and a grooved block composed of p-type thermoelectric semiconductor, provided with a plurality of grooves formed therein, respectively, at a same pitch and parallel with each other, are formed such that a depthwise portion of respective grooved blocks is left intact, and then, an integrated block is formed by fitting and adhering together the grooved blocks composed of the n-type and p-type thermoelectric semiconductors, respectively, filling up gaps in fitting parts with adhesive insulation members. After removing portions of the integrated block, other than the fitting parts where the n-type and p-type thermoelectric semiconductors are fitted to each other, n-type and p-type thermoelectric semiconductor pieces are exposed, and by forming electrodes for connecting the pieces to each other alternately and in series, the thermoelectric device is completed.

Abstract: The invention provides a method of fabricating a thermoelectric device, whereby a grooved block composed of n-type thermoelectric semiconductor and a grooved block composed of p-type thermoelectric semiconductor, provided with a plurality of grooves formed therein, respectively, at a same pitch and parallel with each other, are formed such that a depthwise portion of respective grooved blocks is left intact, and then, an integrated block is formed by fitting and adhering together the grooved blocks composed of the n-type and p-type thermoelectric semiconductors, respectively, filling up gaps in fitting parts with adhesive insulation members. After removing portions of the integrated block, other than the fitting parts where the n-type and p-type thermoelectric semiconductors are fitted to each other, n-type and p-type thermoelectric semiconductor pieces are exposed, and by forming electrodes for connecting the pieces to each other alternately and in series, the thermoelectric device is completed.

Abstract: Each of the n-type and p-type thermoelectric semiconductors (8, 9) are regularly arranged so that both end faces thereof form approximately flush interconnection end faces (3a, 3b) and are joined together through insulation, and interconnection electrodes (7) for alternately electrically connecting the n-type and p-type thermoelectric semiconductors (8, 9) are formed on both interconnection end faces (3a, 3b) to electrically connect the n-type and p-type thermoelectric semiconductors in series, thus obtaining a thermoelectric device block (3). A pair of connecting electrodes (6a, 6b) is formed to be electrically connected to the respective thermoelectric semiconductors corresponding to one end and the other end of a set of thermoelectric semiconductors connected in series in the thermoelectric device block (3).

Abstract: The invention provides a method of fabricating a thermoelectric device, whereby a grooved block (11) composed of n-type thermoelectric semiconductor and a grooved block (21) composed of p-type thermoelectric semiconductor, provided with a plurality of grooves (16, 26) formed therein, respectively, at a same pitch and parallel with each other, are formed such that a depthwise portion of respective grooved blocks is left intact, and then, an integrated block (3) is formed by fitting and adhering together the grooved blocks (11, 21) composed of the n-type and p-type thermoelectric semiconductors, respectively, filling up gaps in fitting parts with adhesive insulation members.

Abstract: The invention provides a method of fabricating a thermoelectric device, whereby a grooved block (11) composed of n-type thermoelectric semiconductor and a grooved block (21) composed of p-type thermoelectric semiconductor, provided with a plurality of grooves (16, 26) formed therein, respectively, at a same pitch and parallel with each other, are formed such that a depthwise portion of respective grooved blocks is left intact, and then, an integrated block (3) is formed by fitting and adhering together the grooved blocks (11, 21) composed of the n-type and p-type thermoelectric semiconductors, respectively, filling up gaps in fitting parts with adhesive insulation members.

Abstract: The invention provides a method of fabricating a thermoelectric device, whereby a grooved block (11) composed of n-type thermoelectric semiconductor and a grooved block (21) composed of p-type thermoelectric semiconductor, provided with a plurality of grooves (16, 26) formed therein, respectively, at a same pitch and parallel with each other, are formed such that a depthwise portion of respective grooved blocks is left intact, and then, an integrated block (3) is formed by fitting and adhering together the grooved blocks (11, 21) composed of the n-type and p-type thermoelectric semiconductors, respectively, filling up gaps in fitting parts with adhesive insulation members.

Abstract: An organic electroluminescent body is formed by a transparent electrode formed on the front surface of an organic luminescent layer, which emits light when a voltage is applied thereto, and a metal electrode formed on the back surface of the organic luminescent layer. An organic electroluminescent device including the organic electroluminescent body is structured to include a transparent electrode formed on the back surface of a transparent substrate, and a diffusing plate having light diffusion characteristics formed on the front surface of the transparent substrate. Since the diffusing plate is formed on the front surface of the transparent substrate, part of an external incident light is reflected diffusedly by the front side of or within the diffusing plate, and the rest of the light travels through the diffusing plate when the organic electroluminescent body does not emit the light (when light is not emitted).

Abstract: An electronic watch is provided with an electric power generator for generating electric energy by external energy, electric power charger for charging the electric energy generated by the electric power generator, a watch driving system comprising a watch driving circuit and a time display sub-system, operated by electric energy supplied by the electric power charger, a stored electric power detector for detecting an amount of electric energy charged in the electric power charger, and a controller. Operation of at least the time display sub-system of the watch driving system is suspended when the amount of electric energy stored as detected by the stored electric power detector falls below a preset standard value, and thereafter, operation of the suspended portion of the watch driving system is resumed upon detecting conditions for reactivation, such operation being continued at least for a period when preset conditions are met.

Abstract: The dial plate according to the present invention comprises a substrate formed of a ceramic material and a colored coating layer formed on the substrate. And, the colored coating layer is characterized by having a colored layer formed of a ceramic paint containing a metal compound as a principal component. The substrate formed of a ceramic material is porous; and hence, diffuses incident light to conceal a solar battery placed on the backside from view. Since the colored layer is formed of a ceramic paint containing a metal compound as a principal component, it is easy to firmly attach it to the substrate formed of a ceramic material and it is capable of forming various colors corresponding to the types of metal compounds applied.

Abstract: A covering member (4), a solar battery (3) and a hand-operating mechanism-containing movement (2) are housed inside a case (1) which has a front side opening (1a), a glass (5) which is provided in the front side opening (1a), in the order of these constituents from the face side of the case (1). The solar battery (3) is disposed opposite to the glass (5) at a light receiving surface thereof which is covered with the covering member (4). The covering member (4) can also serve as a dial. If the covering member (4) is molded out of ceramic, it can provide the dial with a white appearance, so that light can sufficiently be transmitted to the receiving surface of the solar battery (3) owing to the light transmittance of the ceramic.

Abstract: An ink jet head of an ink jet printer of a drop-on-demand type achieves mounting or connection between a driving electrode and an external electrode easily and surely and at the same time reduces revolution of a piezoelectric material during driving. Between the driving electrode with an insulating film and the external electrode is provided an electrical joining component containing electroconductive particles that are harder than the insulating film and that have a particle diameter larger than the thickness of the insulating film. At the bottom part of a slot in a piezoelectric material that forms an ink chamber and pressure chamber is provided a concave portion having a shape formed of combined at least two lines or surfaces. A part of a surface causing a revolution is converted to a component causing a shearing mode.

Abstract: The present invention is directed to drop-on-demand ink jet heads. An exemplary form of an ink jet head of the present invention includes a plurality of elongated members formed of piezoelectric material, the elongated members being spaced apart from one another so as to define therebetween a plurality of elongated channels, alternating ones of which are adapted to be filled with ink so as to define ink channels. Electrodes are formed in the channels on opposing sides of the elongated members. A channel closing member is mounted to the elongated members to cover portions of the channels, the channel closing member having nozzle holes formed therein in alignment with at least some of the channels. The elongated members are polarized in at least one direction.

Abstract: In a shear mode type ink jet head, nozzle holes are disposed at substantially central portions of channels formed between barriers of piezoelectric material, and common ink reservoirs are provided at both ends of the channels. In one embodiment, two kinds of channels having different depths are formed in alternating succession on a board made of piezoelectric material. Channels of one depth are used as dummy channels and are kept empty, and channels of the other depth are filled with ink and the ink can be ejected from the channels through nozzle holes.

Abstract: An ink jet head is disclosed for use with a drop-on demand type printer, and includes an insulating base, a plurality of elongated barriers projecting upwardly from the base so as to form a plurality of slots between the barriers, a plurality of nozzle holes communicating with the slots, and electrodes formed on the side walls of the elongated barriers. Voltage can be applied to the various barriers through the electrodes in order to cause deflection of the barriers and a corresponding reduction in the cross-sectional area of selected slots, so as to force ink contained in the slots to be jetted through the nozzle holes. In order to provide a uniform ink jet intensity from the outermost slots relative to the inner slots, dummy slots can be formed outwardly of the outermost active slots by providing dummy barriers outwardly of the outermost active barriers. In addition, the nozzle holes are formed in a nozzle plate. The nozzle plate can either be mounted against the ends of the slots, or atop the base.

Abstract: An ink-jet printing head comprises a laminated unit integrally formed as a sintered ceramic product and including a bottom insulating plate element, a top insulating plate element, and a piezoelectric plate element between the bottom and top insulating plate element, the laminated unit having a pressure chamber formed at the piezoelectric plate element fillable with an ink, the piezoelectric plate element having electrode layers formed on opposite surfaces thereof surrounding the pressure chamber, the laminated unit also being provided with an orifice in communication with the pressure chamber. The piezoelectric plate element is constituted such that its thickness is reduced upon applying a drive pulse voltage thereto, resulting in a decrease of the pressure chamber volume, whereby an ink-jet drop is ejected from the orifice.

Abstract: An optical information processing device includes a light receiving and driving circuit including photo voltaic elements adapted to receive an incident light and to produce a drive voltage, and an optical shutter driven by the drive voltage produced by the light receiving and driving circuit. With this structure, various basic logical operations are performed by the device according to the present invention. As a feature of the invention, the device receives a pair of incident lights having a complementary relation in strength with each other and produces a pair of output lights from the optical shutters which also are complementary in strength with each other. Thus, the possibility of errors in logical operations is greatly reduced.