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| Number | Title | Issue Date |
| 7288706 | Stringed musical instrument with multiple bridge-soundboard units A stringed musical instrument having multiple bridge-soundboard units, each unit substantially acoustically independent from other bridge-soundboard units. Said bridge soundboard units are coupled to a set of strings such that a number of the strings within the set ... | 10/30/2007 |
| 7276868 | Carbon-fiber laminate musical instrument sound board A soundboard for a hollow-body stringed instrument made of layers of carbon-fiber and resin material surrounding a core of one or more layers of constant-thickness plywood, veneer (thinly sliced wood) or paper. Additional shaped layers are provided to produce a desi... | 10/02/2007 |
| 7085391 | Pickup apparatus of piano There is provided a pickup apparatus for reliably and correctly picking up piano sound by rigidly connecting a sound source member such as a sound board of a piano body, with a stationary member such as a cast-iron plate with use of a pickup apparatus body of the in... | 08/01/2006 |
| 6972358 | Electronic keyboard musical instrument Casing of an electronic keyboard musical instrument includes two discrete parts: a main casing section; and a rear casing section. The main casing section includes a bottom plate having a keyboard section placed thereon, a keyslip portion extending upward from the b... | 12/06/2005 |
| 6888053 | Electronic keyboard musical instrument Casing of an electronic keyboard musical instrument includes two discrete parts: a main casing section; and a rear casing section. The main casing section includes a bottom plate having a keyboard section placed thereon, a keyslip portion extending upward from the b... | 05/03/2005 |
| 6720489 | Piano muter A muter configured to be placed beneath the soundboard of a piano (in the case of a grand piano) in order to attenuate the downward transmission of sound. The muter employs blocks of acoustic foam, shaped to frictionally engage the structural elements of the piano i... | 04/13/2004 |
| 6469237 | Apparatus for opening and closing top board of grand piano In an apparatus for opening an closing a top board of a grand piano, the top board is hingedly supported along one side thereof on an outer rim of the grand piano. The apparatus has a gear-type of jack made up of a jack main body fixed to a wooden fame of... | 10/22/2002 |
| 6281419 | Method of mounting plate in grand piano A method of mounting a plate in a grand piano is provided for ensuring an appropriate bridge pressure in accordance with an actual amount of swelling of a soundboard and its distribution in a simple manner without requiring bridge pressure setting and re-... | 08/28/2001 |
| 6069305 | Structure for supporting sound board of upright piano A support structure is provided for supporting a sound board of an upright piano. A peripheral portion of the sound board is securely fixed to a sound board bearing shim, which is securely fixed to a back frame. The back frame is constructed by a pluralit... | 05/30/2000 |
| 4873906 | Adjustable stringplate mounting means for a grand piano Adjustable mounting means for providing variable spacing between the stringplate and the adjacently spaced soundboard of a grand piano wherein a number of elongate threaded cylinders are located in the peripheral frame is disclosed. Each threaded member h... | 10/17/1989 |
| 4510837 | Method of manufacturing a piano plate assembly and the assembly A plate assembly as herein disclosed can be constructed to be used in place of the plate assembly in any piano. It is constructed primarily of composite material and replaces the conventional cast iron plate or plate assembly. The assembly has better shap... | 04/16/1985 |
| 4377102 | Piano construction In a piano a panel, which takes the place of the usual cast iron string plate or frame, is provided for supporting the strings. The panel is a sandwich construction making it exceptionally strong and capable of withstanding the string loads without bendin... | 03/22/1983 |
| 4364990 | Construction material for stringed musical instruments Improved construction material especially suitable for use in the manufacture of soundboards and panels used in stringed instruments which equal or surpass the sound radiation qualities and physical properties of wood. The construction material of the inv... | 12/21/1982 |
