| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Installation structure for acoustic transducer and musical instrument | US14813956 | 2015-07-30 | US09311905B2 | 2016-04-12 | Hiroyuki Murakami; Yoshiya Matsuo |
| An installation structure for an acoustic transducer for vibrating a vibrated body of a musical instrument in a first direction for permitting the vibrated body to generate sounds, including: the acoustic transducer having a main body and a vibrating portion that vibrates in the first direction; a support portion to be fixed to a housing of the musical instrument for supporting the main body; and a cover member fixed to the support portion for covering the acoustic transducer, wherein the support portion includes a base plate portion to be held in surface contact with the housing so as to be fixed thereto, a first fixing portion to which the main body is fixed and which supports the main body, and a second fixing portion to which the cover member is fixed, and wherein the first and second fixing portions are connected to the base plate portion independently of each other. | ||||||
| 82 | KEYBOARD INSTRUMENT | US13616733 | 2012-09-14 | US20130118333A1 | 2013-05-16 | Kenta OHNISHI; Rokurouta MANTANI; Jun ISSHII |
| In response to an operation of a key, a drive signal indicating a sound waveform corresponding to the key is supplied to an excitation unit provided on a soundboard. The soundboard is vibrated in response to a mechanical vibration generated by the excitation unit and generates an actively-vibrated-soundboard sound as well as an acoustic effect generated by propagation of the vibration of the soundboard to a string. The excitation unit has a voice coil excited by the drive signal. The length of the voice coil is equal to or smaller than a sum of a magnetic path width (mw) of a magnetic path space and a double of a maximum deflection amount (sw) of the vibration member connected to the soundboard. In this way, an effective drive force for exciting the soundboard can be obtained and an enhanced responsiveness in a high frequency band can be obtained. | ||||||
| 83 | Electronic keyboard musical instrument | US11488565 | 2006-07-18 | US20070017353A1 | 2007-01-25 | Kei Kunisada; Takashi Kato; Takashi Fujita |
| An electronic keyboard musical instrument capable of performing delicate sound board vibration control based on outputs generated individually for respective ones of transducers, thereby realizing production of natural sounds with sufficient volume, and an easy tone quality adjustment. A sound board is fixed to a frame, and the transducers are mounted to the sound board so as to be spaced from one another. In accordance with first and second performance signals generated in response to a key operation of a keyboard and a damper pedal operation, driving signals for the transducers are individually generated in consideration of characteristics and mounting positions of the transducers, and the driving signals are supplied to the transducers. The sound board is thereby caused to vibrate at a frequency varying according to a tone pitch, thus producing a musical tone and/or a damper tone. | ||||||
| 84 | Electro-mechanical stringed bass machine | US736384 | 1985-05-21 | US4592263A | 1986-06-03 | Byron A. Gallimore; Charles R. Stone |
| A stringed bass machine is disclosed in which vertical bass guitar strings are struck by hammers and are not plucked or strummed. An electrically operated upright piano action receives power from an external control box having an on-off switch. A musician can operate the bass machine by means of a remote keyboard and/or pedalboard. A unique sound is derived from an acoustically insulated soundboard, which encloses the guitar strings and piano action. | ||||||
| 85 | Breakdown piano | US6802 | 1979-01-25 | US4254684A | 1981-03-10 | Charles T. Helpinstill, III |
| A breakdown piano is disclosed which incorporates, in the preferred and illustrated embodiment, a separable keyboard with hammer mechanism attached which slidably removes from the body of the piano. The remainder of the piano apparatus is incorporated with the body. This is an aid to reduction of weight and division of the piano into two more readily manageable packages for quick moves. The apparatus incorporates a slide assembly aligning the keyboard, a clamp to latch the hammers in a fixed position when detached from the body and a latch release mechanism. There is, additionally, means for bolting the piano keyboard to the body. | ||||||
| 86 | Piano construction | US37193364 | 1964-06-02 | US3262350A | 1966-07-26 | JOHNSON MELVIN E |
| 87 | Piano back structure | US66737457 | 1957-06-24 | US3001433A | 1961-09-26 | MERKEL LOUIS J |
| 88 | Combined fallboard and stop mounting | US31270952 | 1952-10-02 | US2679781A | 1954-06-01 | KOEHL JAMES A |
| 89 | Vertically stringed grand piano | US75318647 | 1947-06-07 | US2532286A | 1950-12-05 | BROWN ALEXANDER P |
| 90 | Musical instrument | US7961149 | 1949-03-04 | US2532226A | 1950-11-28 | HARTMAN LYLE M |
| 91 | Knockdown piano | US978548 | 1948-02-20 | US2505805A | 1950-05-02 | FREDERICK STEIN CHARLES |
| 92 | Upright piano | US3647435 | 1935-08-16 | US2081704A | 1937-05-25 | HELLER HENRY R |
| 93 | Upright piano | US6721836 | 1936-03-05 | US2067880A | 1937-01-12 | HELLER HENRY R |
| 94 | Piano | US63161932 | 1932-09-03 | US1990764A | 1935-02-12 | WESSELL FERNANDO A |
| 95 | Keyboard music instrument | US71686424 | 1924-05-31 | US1775330A | 1930-09-09 | MORIZ STOEHR |
| 96 | Musical instrument | US22213127 | 1927-09-26 | US1750572A | 1930-03-11 | GEORGES CLOETENS |
| 97 | Triple piano | US17264727 | 1927-03-04 | US1747459A | 1930-02-18 | THOMAS SCHLITZ |
| 98 | Piano | US1643139D | US1643139A | 1927-09-20 | ||
| 99 | Piano plate and sounding board | US72427624 | 1924-07-05 | US1599697A | 1926-09-14 | AUGUST WEBER |
| 100 | Built-in piano | US63617023 | 1923-05-02 | US1535842A | 1925-04-28 | MACDONALD MALCOLM M |
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