| Kabushiki Kaisha Kawai Gakki Seisakusho Patent applications |
| Patent application number | Title | Published |
|---|
| 20100162873 | PEDAL DEVICE FOR KEYBOARD INSTRUMENT - A pedal device of a keyboard instrument which makes it possible to stably secure a required action of a pedal, facilitate assembly thereof, and reduce manufacturing costs. A pedal device for a keyboard instrument of the present invention comprises a chassis | 07-01-2010 |
| 20090145286 | ELECTRONIC KEYBOARD INSTRUMENT - An electronic keyboard instrument which is capable of easily carrying out an arpeggio performance rich in variety by a simple operation on a touch strip. The electronic keyboard instrument has a belt-like touch strip on which a player slides his finger while touching it to carry out an arpeggio performance. A CPU causes musical tones of respective pitch names included in respective designated component pitch names to be sounded, in a predetermined arpeggio pattern having a predetermined sounding order, according to detected touch positions on the touch strip, for the arpeggio performance. A musical tone generating circuit for generating musical tones for the arpeggio performance is switched between first and second tone generator circuits for generating musical tones based on key-on information detected on swingable keys and a third tone generator circuit dedicated to generation of musical tones for the arpeggio performance. | 06-11-2009 |
| 20090120265 | HAMMER SHANK OF PIANO AND METHOD OF MANUFACTURING THE SAME - There is provided a hammer shank for a piano which is capable of suppressing a change in the dimension between two arms due to dryness and wetness to thereby ensure smooth and stable operation of a hammer. A hammer shank is supported by a flange and pivotally moves in accordance with key depression. A shank body formed of wood has two bifurcated arms formed on one end thereof. These arms extend in facing and parallel relation to each other along respective opposite sides of the flange, and are pivotally supported by the flange. Phenol backers are attached on outer side surfaces of the respective two arms so as to prevent the two arms from being displaced in a direction in which they face each other. | 05-14-2009 |
| 20090100980 | UPRIGHT PIANO - [Problems to be solved]There is provided an upright piano which is capable of providing a soft pedal effect in a first playing mode for performing acoustic playing, and an excellent performance in a second playing mode, without being affected by step-on of a soft pedal, while properly detecting the rotational position of each hammer.
| 04-23-2009 |
| 20090019987 | KEY FOR KEYBOARD INSTRUMENT - A key for a keyboard instrument, which is capable of maintaining the excellent abrasion resistance and lubricity of bushing cloth for a long time period, thereby making it possible not only to stably ensure a smooth pivotal motion of the key but also to manufacture the key at lower costs. The key is mounted in a state engaged with a pin and is pivotally moved in accordance with depression thereof. The key has a key stick formed with a pin hole having left and right wall surfaces opposed to each other and opening downward, and is pivotally engaged with the pin via the pin hole. Bushing cloth sheets are made of fluorocarbon resin fibers, and are affixed to the left and right wall surfaces of the pin hole. | 01-22-2009 |
| 20090000462 | Electronic Musical Instrument - An electronic music instrument includes a musical-tone control that generates operation information of keys and a damper pedal to serve as musical-tone control information; a musical-tone generator simultaneously generating a plurality of musical tones according to the musical-tone control information; a resonance-tone generator that includes resonant circuits equal in number to harmonic signals of musical-tone signals that can be generated, for generating a resonance tone with the resonance circuits using a musical tone generated by the musical-tone generator as an input signal to each resonance circuit; and a resonance-tone mixer that multiplies the resonance tone generated by the resonance-tone generator by a predetermined degree according to the musical-tone control information, for adding the product to a musical tone input from the musical-tone generator, and outputting the sum. | 01-01-2009 |
| 20080295668 | ELECTRONIC KEYBOARD MUSICAL INSTRUMENT - An electronic keyboard musical instrument includes a body unit of the musical instrument and a stand attached to the body unit. The stand includes a pair of side boards disposed in a standing manner so as to interpose the body unit therebetween. The body unit includes a pair of lateral surfaces. Each of the pair of lateral surfaces faces one of the pair of side boards and includes a first engaging portion disposed thereon. Each of the pair of side boards includes a first engaged portion engaged by the first engaging portion and disposed on an inner lateral surface thereof, which faces one of the pair of lateral surfaces of the body unit. The first engaging portion and the first engaged portion are engaged with each other by at least one of the body unit and the stand being moved in a predetermined direction. | 12-04-2008 |
| 20080277992 | STOOL - A stool includes a seat board, a plurality of legs, and a connecting board. The plurality of legs is attached to the seat board so as to protrude from the seat board in a downward direction, and to support the seat board such that the seat board is horizontally held. The connecting board is disposed such that one surface thereof faces a bottom surface of the seat board. The connecting board is surrounded by and secured to the plurality of legs. | 11-13-2008 |
| 20080257132 | BLACK KEY FOR KEYBOARD INSTRUMENT AND METHOD OF MANUFACTURING A BLACK KEY COVER - A black key for a keyboard instrument, in which a black key cover incorporating a weight can be manufactured at low costs, and the black key cover can be firmly mounted on a key body, in a state stably holding the weight in a black key cover body. A swingable key body extends in a front-rear direction. A black key cover body has a hollow shape opening downward, and is mounted on a front portion of the upper surface of the key body in a manner covering the front portion. A weight is received within the black key cover body. The black key cover body has at least one of lower walls protruding inward from lower portions of left and right side walls, for holding the weight from below. The lower surfaces of the lower walls are bonded to the key body. | 10-23-2008 |
| 20080210082 | AUTOMATIC MUSIC TRANSCRIPTION APPARATUS AND PROGRAM - An automatic music transcription apparatus that can automatically transcribe an acoustic signal produced by a single musical instrument, not only in monophonic music but also in polyphonic music, where a plurality of notes are sounded at the same time, is provided. The apparatus includes an input block for receiving an acoustic signal; an overtone-power-ratio detection block for detecting overtone-to-fundamental power ratios of an input sample acoustic signal of a musical instrument used in music to be transcribed automatically; a storage block for storing the overtone-to-fundamental power ratios; a chromatic-note-power detection block for detecting the power of each chromatic note from the acoustic signal input from the musical instrument; an overtone elimination block for subtracting, on the assumption that each chromatic note is a fundamental note, the product of the power of the fundamental note and the power ratio of each overtone corresponding to the chromatic note of the fundamental note from the power of the chromatic note of the overtone and adding the product to the power of the fundamental note, with respect to all the chromatic notes, one after another from the lowest chromatic note; a musical-notation-information detection block for detecting musical notation information by extracting a chromatic note having a power greater than or equal to a threshold level, after the overtone elimination block performs the processing; and a detection result output block for outputting the detected musical notation information to a file or the like. | 09-04-2008 |
