Abstract: Disclosed is a recycled resin composition having physical properties, a feeding property as well as a moldability which are by no means inferior as compared with the raw material resin composition, even when a ratio of recycled material in recycled resin composition used as molding material is increased. A recycled resin composition obtained by compounding a mixture containing (a) a raw material resin, (b) at least one kind of additives for resin, and (c) a pulverized material of a recovered molded article generated at the time of molding of a raw material resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin and/or a recycled resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin, is provided.

Abstract: An array of optical fiber sensors is installed in an automatic player piano for monitoring the hammers, and a data processing system produces music data codes through the analysis on the current hammer positions reported by the optical fiber sensors, wherein each optical fiber sensor has a sensor head separable into a head body and a holder so that an assembling worker fixes the optical fiber to the sensor head by pressing the optical fiber to the head body with the holder.

Abstract: The present invention relates to a thermoplastic resin composition comprising a thermoplastic resin and hollow carbon fibrils dispersed in the thermoplastic resin, the hollow carbon fibrils being present in an amount of 0.1 to 20% by weight based on the total weight of the composition, comprising independent fibrils and agglomerated fibrils, and having such a dispersing condition, when represented by indices based on the measurement of transmission electron microphotograph, that the ratio of the independent fibrils to the agglomerated fibrils lies within the range of 8/92 to 40/60 and the independent fibrils have an average length of 20 to 200 nm.

Abstract: An automatic player piano is broken down into an acoustic piano and an automatic playing system, and solenoid-operated key actuators are driven to rotate the black/white keys of the acoustic piano; the space between the keyboard and the array of black/white keys is so narrow that the manufacturer provides the solenoid-operated key actuators in the space below the key bed; plunger holes are formed in the rear portion of the key bed, and the solenoids occupy the space under the key bed so that the plungers project through the plunger holes into the space beneath the rear portions of the keys; the key bed is does not lose the mechanical strength so that the tuning work is not frequently required for the key action units.

Abstract: There is provided a performance apparatus that can reduce energy consumption while allowing sounding elements to appropriately generate sound. A CPU supplies driving energy to an actuator to drivingly control the same based on pulse width modulation. A rotary pick is rotatively driven by the actuator to pluck reeds to generate sound. The CPU sets the duty of a driving pulse for driving the rotary pick during time points t3 and t4. Thus, higher driving energy is supplied to the actuator in timing in which the rotary pick plucks any of the reeds than in timing in which the rotary pick does not pluck any of the reeds.

Abstract: There is provided a performance apparatus which is capable of performing fine variable control of musical tone parameters so as to obtain a variety of sounding characteristics. A plurality of reeds are fixedly mounted on a center block and each excited to vibrate by a corresponding actuator. A plurality of, e.g. three, resonant plates of different sounding volume are arranged in layers and each provided with a short yoke. A plurality of, e.g. three, vibration transmission mechanisms are fixed on a lower surface of the center block in association the respective resonant plates, and each comprised of a clutch coil wound around a clutch yoke.

Abstract: A thermoplastic resin composition for an electrical/electronic contact part according to the present invention includes a thermoplastic resin and a polyol, wherein the polyol is contained in a range of 0.2 to 10 parts by weight based on 100 parts by weight of the thermoplastic resin. Alternatively, a thermoplastic resin composition for an electrical/electronic contact part according to the present invention includes: a thermoplastic resin; a halogenated aromatic compound which is contained in a range of 1 to 50 parts by weight based on 100 parts by weight of the thermoplastic resin; and a double salt represented by at least one of (X2O)n.Sb2O5 and (YO)n.Sb2O5, where X represents a monovalent alkaline metal element, and Y represents a divalent alkaline earth metal element, and n represents a ratio of X2O or YO to Sb2O5 exceeding 0.7, the double salt having an adsorbed water elimination rate of not more than 50 min.

Abstract: An optical sensor array includes light-emitting devices and sensor heads remote from the light-emitting devices, and each light-emitting device is optically coupled to plural sensor heads through optical fibers; the light-emitting device is optically connected to the optical fibers by means of a multicore optical fiber connector, and the multicore optical fiber connector keeps the optical axes of the optical fibers equally spaced from the optical axis of the light-emitting device; even though the light intensity is isotropically dispersed on the cross section of the light beam, the total amount of light incident on each optical fiber is equal to the total amount of light incident on any one of the other optical fibers so that a strict calibration is not required for the optical sensor array.

Abstract: A light emitting device includes an optical fiber plug formed with a through-hole into which a bundle of optical fibers is inserted and a light-emitting device holder formed with a through-hole in which a condenser lens and a light emitting device are accommodated, and the optical fiber plug is assembled with the light-emitting device holder so that the light emitting device is optically coupled to the optical fiber through the condenser lens; a positioning device, a hyperboloid lens surface or a reflecting surface is formed in the optical fiber plug/light emitting device holder, condenser lens or the inner surface of the light-emitting device holder so that the light incident on the light input end is increased by virtue of the exact positioning between the optical fiber and optical axis, reduction of aberration or increase of light directed to the condenser lens.

Abstract: Each of a plurality of TG (tone generation) units includes a plurality of TG elements corresponding to a plurality of tone pitches. A plurality of resonant boxes are provided in corresponding relation to the TG units, and each box is formed of a material having a characteristic different from the materials forming the other boxes. One or more of the TG elements to be driven for tone generation are determined on the basis of tone pitch designating information and tone color setting information, and the determined TG elements are driven to vibrate. Because the resonant boxes are formed of different materials, tones can be generated with peculiar tone colors in accordance with the materials of the resonant boxes corresponding to the vibrated TG elements. In an alternative, the TG elements in each of the TG units may be formed of a material of a characteristic different from materials forming the TG elements of the other TG units.

Abstract: A real-play sound provider is connected with a communication terminal via a network. The user operates the communication terminal to transmit musical tone files, which include tone pitches and tone-generation timings of designated musical tones, to the real-play sound provider, so that the real-play sound provider controls a prescribed musical instrument to play automatic performance based on musical tone files, thus creating real-play sound files. The real-play sound files are created in accordance with prescribed conditions suiting user's preferences and are stored in a storage device of the real-play sound provider. Then, the real-play sound files are transmitted to the communication terminal upon user's designation of an address (e.g., URL) as necessary. Thus, the communication terminal controls a sound reproduction unit to reproduce sounds of the prescribed musical instrument, which is not possessed and played by the user.

Abstract: A music box includes daisy reed wheels, the reeds of which are respectively associated with player's fingers, and the player's fingers are selectively energized for plucking the reeds for generating tones; the reeds of the daisy reed wheels form reed groups respectively assigned to tones, and a controller selects reeds from the reed groups in such a manner that any one of the reeds of each group is not plucked with the player's finger, whereby the controller prevents the vibrating reeds from the plucking.

Abstract: The present invention relates to a thermoplastic resin composition comprising a thermoplastic resin and hollow carbon fibrils dispersed in the thermoplastic resin, the hollow carbon fibrils being present in an amount of 0.1 to 20% by weight based on the total weight of the composition, comprising independent fibrils and agglomerated fibrils, and having such a dispersing condition, when represented by indices based on the measurement of transmission electron microphotograph, that the ratio of the independent fibrils to the agglomerated fibrils lies within the range of 8/92 to 40/60 and the independent fibrils have an average length of 20 to 200 nm.

Abstract: A music box includes a daisy reed wheel having reeds radially projecting from a hub for generating tones and solenoid-operated player's fingers arranged around the daisy reed wheel; the tips of the reeds are widely spaced from one another by virtue of the radial arrangement so that large-sized solenoid-operated actuators are used for the player's fingers; this results in the compact music box.

Abstract: An automatic player piano is equipped with a key actuating device for moving keys without fingering, and the key actuating device has a retainer embedded in the key bed for adapting plungers of solenoid-operated key actuators to the keys, respectively, wherein the retainer is formed with guide grooves defined between wall portions for permitting sliding portions of the yokes incorporated in the solenoid-operated key actuators therealong, and a worker simply presses the yoke against the wall portions by means of bolts so as to locate the plungers immediately under the associated keys.

Abstract: A hammer sensor includes a photo-filter plate movable together with a hammer assembly and having a base plate fixed to the hammer shank and an arc pattern formed on the base plate and different in transparency from the base plate, a photo radiating element radiating a light beam toward the arc pattern and a photo detecting element disposed on the optical path of the light beam for converting the amount of transmitted light to an electric signal, wherein the photo-filter plate converts the rotational angle of the hammer assembly to the amount of light incident on the photo detecting element, and makes the photo radiating element and the photo detecting element stationary so that a suitable photo-shield case prevents the photo elements from environmental light.

Abstract: An optical position transducer is provided for each of the black/white keys incorporated in a composite keyboard musical instrument; the optical position transducer includes a photo-coupler radiating a light beam, an optical filter moved across the light beam, a recess formed in the black/white key at a proper position where the optical filter is aligned with a target trajectory crossing the light beam and an elastic coupler pressed to an inner surface defining the recess and secured to the optical filter so that a worker assembles the optical filter with the key by inserting the elastic coupler into the recess.

Abstract: A hammer sensor includes a photo-filter plate movable together with a hammer assembly and having a base plate fixed to the hammer shank and an arc pattern formed on the base plate and different in transparency from the base plate, a photo radiating element radiating a light beam toward the arc pattern and a photo detecting element disposed on the optical path of the light beam for converting the amount of transmitted light to an electric signal, wherein the photo-filter plate converts the rotational angle of the hammer assembly to the amount of light incident on the photo detecting element, and makes the photo radiating element and the photo detecting element stationary so that a suitable photo-shield case prevents the photo elements from environmental light.

Abstract: An electromagnetic device has a bobbin with collars projecting from a cylindrical body, L-shaped conductive pins partially embedded in the collar so that first end portions and second end portions respectively project from the side surface and the lower surface of the collar, an insulated wire wound on the cylindrical body and connected at both ends thereof to the first end portions, a plunger projectable from and retractable into the cylindrical body, a socket holder attached to the bobbin so as to prevent the first and second end portions from damage and a socket coupled to the socket holder for connecting a cable to the second end portions, thereby allowing a manufacturer to increase the turns of the coil without enlarging the bobbin.

Abstract: Disclosed is a recycled resin composition having physical properties, a feeding property as well as a moldability which are by no means inferior as compared with the raw material resin composition, even when a ratio of recycled material in recycled resin composition used as molding material is increased. A recycled resin composition obtained by compounding a mixture containing (a) a raw material resin, (b) at least one kind of additives for resin, and (c) a pulverized material of a recovered molded article generated at the time of molding of a raw material resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin and/or a recycled resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin, is provided.