| Patent Number |
Title Of Patent |
Date Issued |
| 6660917 |
Keyboard musical instrument having fall board formed with clearance for fingers |
December 9, 2003 |
| A grand piano has a keyboard placed on a key bed, and the keyboard is covered with a fall board after completion of practice on the keyboard, wherein a recess is formed in the fall board in such a manner as to offer a clearance to fingers on the black keys so that, even if the pianist |
| 6403872 |
Keyboard musical instrument faithfully reproducing original performance without complicated tuni |
June 11, 2002 |
| An automatic player piano is an acoustic piano equipped with a data acquisition system and a playback system, and the data acquisition system monitors the hammers with hammer sensors for producing a set of music data codes representative of a performance on the keyboard, wherein the hamm |
| 6380472 |
ELECTRIC TUTOR FOR DIRECTLY INDICATING MANIPULATORS TO BE ACTUATED, MUSICAL INSTRUMENT WITH BUIL |
April 30, 2002 |
| A keyboard musical instrument that is equipped with an electric tutor for guiding a trainee in practicing manipulation of black and white piano keys, whereby the electric tutor reads pieces of musical data information representative of the black and white keys to be depressed and a timin |
| 6380470 |
Training system for music performance, keyboard musical instrument equipped therewith and traini |
April 30, 2002 |
| A keyboard musical instrument has keys equal to a multiple of five assigned to the fingers of a trainee, an electric tutor and an electronic sound generating system, and the electric tutor gives the trainee guide in practicing the fingering along a passage, wherein the electronic sound |
| 6011214 |
Keyboard instruments having hammer stopper outwardly extending from hammer shank and method of r |
January 4, 2000 |
| A stopper, a driver unit, key and pedal sensors, a sound processing unit and a sound system are installed in an acoustic piano so as to remodel the acoustic piano into a keyboard musical instrument performable with either acoustic or electronic sounds. |
| 5880393 |
Keyboard musical instrument and recorder/playback controller incorporated therein |
March 9, 1999 |
| An acoustic piano, solenoid-operated key actuators for moving black/white keys in response to a driving signal and an electric system form in combination a keyboard musical instrument, and the electric system previously establishes first relations between key motions and associated h |
| 5616880 |
Keyboard musical instrument equipped with hammer shank stopper where hammer assembly rebounds wi |
April 1, 1997 |
| An acoustic upright piano, an electronic sound system and a hammer stopper form in combination a keyboard musical instrument for generating acoustic sounds in an acoustic sound mode and electronic sounds in an electronic sound mode, and the hammer stopper has a rotatable shaft extending |
| 5610356 |
Keyboard musical instrument having hammer stopper exactly position at blocking position |
March 11, 1997 |
| A keyboard musical instrument selectively enters into an acoustic sound mode for generating acoustic piano tones and an electronic sound mode for generating electronic sounds instead of the acoustic piano tones, and a stopper is changed between a free position and a blocking position by |
| 5602351 |
Grand piano-like keyboard instrument for selectively producing acoustic sound and synthesized so |
February 11, 1997 |
| A piano-like keyboard instrument allowing a player to perform in either an acoustic sound mode and or an electronic sound producing mode. In the electronic sound producing mode, a stopper blocks sets of piano strings from hammers and an electronic sound producing unit generates electroni |
| 5552559 |
Keyboard musical instrument equipped with hammer sensors changing position between recording mod |
September 3, 1996 |
| A keyboard musical instrument has an acoustic piano for generating acoustic sound in an acoustic sound mode, an electronic sound generating system for generating electronic sounds on the basis of detecting signals of hammer sensors in an electronic sound mode and a stopper operative to p |
| 5506369 |
Electromagnetic actuator used for keyboard musical instrument |
April 9, 1996 |
| An electromagnetic actuator unit is provided over a keyboard of a piano, and each of the electromagnetic actuators of the electromagnetic actuator unit has a solenoid coil wound on a bobbin and a plunger for pushing down one of the keys, wherein the gravity exerted on the plunger is smal |
| 5451708 |
Automatic player piano equipped with monitoring system on key action for improving fidelity of r |
September 19, 1995 |
| A controller module associated with a mechanical piano memorizes a plurality sets of parameters produced from detected trajectories of depressed keys in a floppy disk in a recording mode of operation, and restores the trajectories on the basis of the sets of parameters for driving an |
| 5434349 |
Keyboard instrument selectively entering into an acoustic mode and a silent mode through a slidi |
July 18, 1995 |
| A keyboard instrument selectively enters into an acoustic sound mode for producing piano tones and into an electronic sound mode for producing synthetic tones, and comprises an acoustic piano, an electronic sound generating system and a mode controlling system, wherein the mode contr |
| 5428186 |
Keyboard instrument selectively entering into acoustic sound mode and silent mode through angula |
June 27, 1995 |
| An acoustic piano is equipped with an electronic sound generating system, and a key bed structure is angularly movable between an acoustic sound mode and an electronic sound mode for changing gaps between hammer heads and sets of strings, thereby allowing a player to perform a music with |
| 5386083 |
Keyboard instrument having hammer stopper outwardly extending from hammer shank and method of re |
January 31, 1995 |
| A hammer stopper is moved into and outof an orbit of an extension of a hammer shank depending upon an operation mode, and the extension rebounds on the hammer stopper in an electronic sound producing mode between an escape of a jack from a butt and a strike of a hammer head at a set of |
| 5374775 |
Keyboard instrument for selectively producing mechanical sounds and synthetic sounds without any |
December 20, 1994 |
| In order to give piano-like key touch to a player in an electronically sound producing mode, a keyboard incorporated in a musical instrument is linked with key action mechanisms associated with hammer mechanisms, and a stopper blocks the hammer shanks before the hammers strike the string |
| 5247129 |
Stringless piano-touch electric sound producer for directly driving a sound board on the basis o |
September 21, 1993 |
| A wireless piano-touch electric sound producer comprises a keyboard assoicated with key action mechanisms and hammers driven for rotation upon depressing the assoicated keys, and a board accompanied with an absorber is shared between the hammer units for scaling down of the electric soun |
