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| Number | Title | Issue Date |
| 4914999 | Keyboard assembly for forming keyboard apparatus of electronic musical instrument A keyboard assembly for forming a keyboard apparatus of an electronic musical instrument, including a combination of at least two key units each having a plurality of key members and an elongated bracket portion connecting the key members together, a fram... | 04/10/1990 |
| 4892024 | Structure of keyboard used in electronic keyboard instrument There is disclosed a keyboard structure incorporated in an electronic keyboard instrument the keyboard structure including; a plurality of key members each having a depressible front end portion and a rear end portion; a plurality of flexible connecting m... | 01/09/1990 |
| 4782734 | Keyboard keys for larger hands An improved keyboard includes the replacement or substitution of the original, conventional flat/sharp or black keys with a more narrower key having a width factor substantially within the range of 0.55 to 0.85 of the width of a standard or original black... | 11/08/1988 |
| 4777856 | Dancing-musical instrument A new type of musical instrument and performance apparatus is disclosed and is used with the special performing art called "Instrument dance", "instrument exercise" or "instrument boxing" etc. The instrument comprises a floor keyboard, on which the perfor... | 10/18/1988 |
| 4706536 | Membrane keyboard for songbook tone generator A membrane keyboard for e.g. a low cost electronic tone generator of the type affixed to the binding of a songbook is disclosed. The keyboard includes a base carrying a set of interdigital upwardly facing printed circuit contacts for each key. A membrane ... | 11/17/1987 |
| 4704940 | Computer keyboard adaptor A device adapted to be removably placed over a computer keyboard which converts the keyboard to the format of a muscial instrument. The computer is programmed such that selected computer keys of the keyboard will synthesize different musical sounds. The d... | 11/10/1987 |
| 4653378 | Pedal keyboard for electronic musical instrument A pedal keyboard for an electronic musical instrument, includes a pedal key vertically pivotal about a pivot mechanism mounted on a frame of a housing for the electronic musical instrument, a spring for biasing the pedal key so as to cause the pedal key t... | 03/31/1987 |
| 4628792 | Modified musical instrument keyboard A keyboard for a musical instrument includes at least one series of keys wherein seven keys in the series and five keys correspond to the typical piano or synthesizer white and black keys, respectively. Twelve narrow keys at a third level raised from the ... | 12/16/1986 |
| 4570528 | Keyboard for a carillon In a carillon or chimes keyboard, which may be a manual or a pedal set, the eys (sticks or pedals) and the frame for taking them up pivotally are provided with cooperating surfaces, one surface on the key hitting the other surface on the frame at the end o... | 02/18/1986 |
| 4479415 | Tracker action touch for keys in a keyboard musical instrument A key action for an electronic musical instrument for simulating a mechanical-type tracker action having a single means embodying an electrical contact means and a motion retarding means to cause a toggling of the key while the electrical contact is maint... | 10/30/1984 |
| 4444083 | Keyboard instrument, especially a piano or similar instrument Keyboard instrument, in particular a piano or similar instrument that has keys and that can be used in conjunction with aids to learning in the form of templates, characterized in that, of the white keys (long keys 2) that form the C-major scale, the widt... | 04/24/1984 |
| 4362934 | Velocity sensing device using opto-electronic switches A musical synthesizer keyboard has a plurality of keys mounted so that each key may be displaced along and return along a locus of movement and where during travel in either direction along said locus a key causes a change of state in each of two correspo... | 12/07/1982 |
| 4361738 | Key-actuated switch This is an electrical switch mechanism actuated by a piano-style key of a musical instrument. The switch consists of a pair of cross-bar contacts, at least one of which is resiliently flexible. This resilience permits a moveable contact member to be drive... | 11/30/1982 |
| 4351222 | Keyboard musical instrument with casing comprising two halves A portable electronic keyboard musical instrument comprises a casing comprising a pair of plastic-molded upper and lower shells coupled together. A plurality of keys are mounted on the upper shell in juxtaposed relation. The upper shell includes an integr... | 09/28/1982 |
| 4272657 | Keyboard assembly for electronic musical instruments A keyboard assembly for electronic musical instruments such as electronic pianos is constructed from a key switch unit and a resilient holder block for mounting the key switch unit to a key frame via simple snap coupling. The key switch unit includes a re... | 06/09/1981 |
| 4261242 | Arrangement for chromatic and diatonic keys for carillon keyboards An arrangement for chromatic and diatonic keys for a carillon keyboard is provided. A guide plate has key receiving slots located such that the natural, or diatonic, keys are in a lower row and the accidental, or chromatic, keys are in an upper row, the c... | 04/14/1981 |
| 4217807 | Stemware musical instrument Stemware of goblets secured in adjoining positions on a mounting board in vertical and horizontal rows, with adjacent goblets rim rubable by one hand, with the goblets in the horizontal rows arranged in tones for basic chords; for example, a first row in ... | 08/19/1980 |
| 4168649 | Keyboard assembly for toy musical instruments A keyboard assembly for toy musical instruments, such assembly being executed in plastic and including a base with an upper section for receiving a plurality of tone bars and a lower section for receiving a like plurality of keys. Each key is removably mo... | 09/25/1979 |
| 4128036 | Electro-mechanical keyboard memory for an electronic musical instrument In a keyboard electronic musical instrument such as an electronic organ, an electro-mechanical memory device for holding in the down or actuated position one or more simultaneously depressed accompaniment chord and bass playing keys after the finger press... | 12/05/1978 |
| 4127051 | Piano key frame A piano key frame assembly comprising a rigid metal frame, preferably formed from aluminum tubing, for supporting the piano keys and action, the frame having a front rail, an intermediate balance rail and a back rail, the back rail mounting adjustment mea... | 11/28/1978 |
| 4099437 | Remote control wireless keyboard musical instrument A musical instrument which comprises (i) a portable transmitter unit, (ii) a receiver unit, and (iii) a standard or modified piano, electronic organ, or other keyboard musical device. The transmitter unit has sixty keys, each of which corresponds to a key... | 07/11/1978 |
| 4091702 | String musical instrument having a keyboard A keyboard musical instrument comprises a plurality of juxtaposed movable key units and a plurality of juxtaposed strings, each of which has one end fixed to the corresponding key unit and the other end immovably attached to the body of the key board musi... | 05/30/1978 |
| 4054079 | Keyboard and notation system A keyboard for a piano, organ, or similar instrument in which the keys are arranged in groups of three, each having a pair of flat keys with a raised key inset between. The flat keys are on a common plane in the manner of the white keys of a conventional ... | 10/18/1977 |
| 4043244 | Electronic musical instrument keyboard A musical instrument keyboard consisting of a spring metal plate stamped into the shape of a comb with the back of the comb clamped in position and the teeth thereof mounting the keys, characterized by low cost, and including provision for comparable pres... | 08/23/1977 |
| 4031800 | Keyboard for a musical instrument Geometrically, my keyboard is characterized by a two-dimensional pattern of at least six horizontal and at least six vertical rows of keys. The center-to-center spacing between adjacent keys, both horizontally and vertically, is no greater than about one ... | 06/28/1977 |
| 4028979 | Multiplexer for electronic musical instrument An electronic musical instrument has a ring oscillator incorporating a multiplicity of identical stages connected to form a ring with the output of each stage being connected to the input of the succeeding stage. Each stage has an RC time constant circuit... | 06/14/1977 |
| 4027569 | Keyboard for an electronic musical instrument employing variable capacitors A keyboard of an electronic musical instrument incorporates a plurality of variable capacitors, one for each key, with one conductor of each capacitor being connected for movement with an individual key of the keyboard toward and away from the other condu... | 06/07/1977 |
| 4009633 | Electronic musical instrument The organ is designed to play six-tone musical scales, which lead naturally to a simple and easily learned system of hexatonic notation. A scale selector apparatus can be set to make different hexatonic scales playable on the front digitals of the keyboar... | 03/01/1977 |
| 3986422 | Electronic musical instrument The organ plays either a hexatonic scale or the diatonic scale on its front digitals. The organ has a tone transposition apparatus comprising a scale selector apparatus, a key selector apparatus and an absolute pitch changer switch. The key selector appar... | 10/19/1976 |
| 3982463 | Piano-like musical instrument A piano-like musical instrument to be played by a group of people including individual tone blocks each played by one person using a music score coded to that one person's note. The tone blocks may be arranged as an oversized piano keyboard or may be sepa... | 09/28/1976 |
| 3981221 | Portable keyboard The assembly consists of a piano type musical keyboard which includes a plurality of elongated individual pivotally mounted key bars having a key or a representative thereof positioned on one end of each of the key bars and means associated with the oppos... | 09/21/1976 |
| 3979990 | Keyboard arrangement in electronic musical instrument A keyboard arrangement in electronic musical instrument comprising playing keys movable to cover a predetermined distance in normal play and also being able to move farther in excess of said distance in accordance with the pressure applied to the keys, a ... | 09/14/1976 |
| 3973460 | Keyboard type musical instrument The instrument is designed to play a six tone scale on its lower digitals, which leads naturally to a simple and easily learned system of music notation. In the preferred embodiment, the six tone scale consists of the first six tones of the conventional d... | 08/10/1976 |
| 3943811 | Keyboard type musical instrument The musical instrument has a keyboard which may be arranged to have either seven or five lower digitals per octave span. The musical tones are electrically keyed by means of digital switches. A scale selector switch changes the connections between the dig... | 03/16/1976 |
| 3941023 | Chord button assembly A chord button assembly for use in electronical organs is formed as a unitary assembly. A plastic hinge strip extending the length of the chord selector button area is provided and a plurality of keys or arms extend from the strip and have selector button... | 03/02/1976 |
