Abstract: A modified wood includes: a wood material; and a sappanwood extract component impregnated in the wood material.

Abstract: A modified wood includes: a wood material; and a sappanwood extract component impregnated in the wood material.

Abstract: An object of the present invention is to provide a tone bar woody material and a xylophone that are superior in acoustic characteristics and stable in quality. In the tone bar woody material of the present invention, at least a partial region of a surface layer of a wood material was impregnated with a resin composition, and the wood material comprises in the partial region, a plurality of pores each having an average diameter less than 1.2 times an average diameter of vessels in the wood material.

Abstract: An object of the present invention is to provide a woody material for a wind instrument superior in resistance to a moisture change. The woody material for a wind instrument comprises: a plurality of veneers being laminated; and at least one buffer layer comprising a fibrous sheet constituted from a nonwoven fabric or a woven fabric, and an adhesive with which the fibrous sheet is impregnated, the buffer layer being interposed between adjacent two of the plurality of veneers.

Abstract: An object of the present invention is to provide a tone bar woody material and a xylophone that are superior in acoustic characteristics and stable in quality. In the tone bar woody material of the present invention, at least a partial region of a surface layer of a wood material was impregnated with a resin composition, and the wood material comprises in the partial region, a plurality of pores each having an average diameter less than 1.2 times an average diameter of vessels in the wood material.

Abstract: An object of the present invention is to provide a woody material for a wind instrument superior in resistance to a moisture change. The woody material for a wind instrument comprises: a plurality of veneers being laminated; and at least one buffer layer comprising a fibrous sheet constituted from a nonwoven fabric or a woven fabric, and an adhesive with which the fibrous sheet is impregnated, the buffer layer being interposed between adjacent two of the plurality of veneers.

Abstract: A board for a stringed instrument which forms a front plate or a back plate of a stringed instrument, includes: a laminated plate that is obtained by laminating a plurality of veneers having a uniform thickness by an adhesive, at least one of the veneers having a different planar shape than the other veneers, in which the laminated plate is curved to be convex toward one surface side and has a thin portion and a thick portion.

Abstract: A board for a stringed instrument which forms a front plate or a back plate of a stringed instrument, includes: a veneer that includes a concave portion for partially reducing the thickness of the veneer, in which the veneer is curved to be convex toward one surface side. In this board for a stringed instrument, fiber of the veneer may extend along the curved shape of the veneer.

Abstract: A method of fabricating a bow stick includes winding a prepreg, in which a fiber is impregnated with a resin, on a mandrel with a diameter gradually decreasing toward a distal end, setting a semi-fabricated product, in which the prepreg is wound on the mandrel, into a mold and molding the semi-fabricated product in a shape corresponding to a cavity formed between the mold and the mandrel by heating and pressurizing the semi-fabricated product in the mold, and taking out the mandrel from a molded product molded in the shape corresponding to the cavity to acquire a long and hollow stick body. When adjusting at least one of a weight distribution, a center of gravity, and a weight of the stick body, the volume of the cavity is changed using the mandrel of which the diameter or the diameter variation is gradually changed in an axis direction.

Abstract: A method of fabricating a bow stick includes winding a prepreg, in which a fiber is impregnated with a resin, on a mandrel with a diameter gradually decreasing toward a distal end, setting a semi-fabricated product, in which the prepreg is wound on the mandrel, into a mold and molding the semi-fabricated product in a shape corresponding to a cavity formed between the mold and the mandrel by heating and pressurizing the semi-fabricated product in the mold, and taking out the mandrel from a molded product molded in the shape corresponding to the cavity to acquire a long and hollow stick body. When adjusting at least one of a weight distribution, a center of gravity, and a weight of the stick body, the volume of the cavity is changed using the mandrel of which the diameter or the diameter variation is gradually changed in an axis direction.

Abstract: A board for a stringed instrument which forms a front plate or a back plate of a stringed instrument, includes: a laminated plate that is obtained by laminating a plurality of veneers having a uniform thickness by an adhesive, at least one of the veneers having a different planar shape than the other veneers, in which the laminated plate is curved to be convex toward one surface side and has a thin portion and a thick portion.

Abstract: A board for a stringed instrument which forms a front plate or a back plate of a stringed instrument, includes: a veneer that includes a concave portion for partially reducing the thickness of the veneer, in which the veneer is curved to be convex toward one surface side. In this board for a stringed instrument, fiber of the veneer may extend along the curved shape of the veneer.

Abstract: A stick of a string instrument bow includes a base material having an arched-rod shaped carbon fiber resin layer made of carbon fiber resin and a glass fiber resin layer which covers the outer surface of the carbon fiber resin layer and is made of glass fiber resin, and the glass fiber resin layer has a non-adhesion portion formed of an air layer present within the glass fiber resin layer and an adhesion portion which does not include the air layer.

Abstract: An acoustic timber for use in an acoustic musical instrument is constituted of a plurality of woody members, such as woody fibers, woody veneers, blasted bamboo fibers, and defibrated bamboo fibers, whose fiber length is 50 mm or more. An epoxy resin is impregnated into the woody members with an impregnation factor of 5 weight-percent through 50 weight-percent. The woody members impregnated with the epoxy resin are joined together by way of heating and compressive molding so that the fibers thereof are uniformly aligned in the desired fiber-aligning direction.

Abstract: A stick of a string instrument bow includes a base material having an arched-rod shaped carbon fiber resin layer made of carbon fiber resin and a glass fiber resin layer which covers the outer surface of the carbon fiber resin layer and is made of glass fiber resin, and the glass fiber resin layer has a non-adhesion portion formed of an air layer present within the glass fiber resin layer and an adhesion portion which does not include the air layer.

Abstract: An acoustic timber for use in an acoustic musical instrument is constituted of a plurality of woody members, such as woody fibers, woody veneers, blasted bamboo fibers, and defibrated bamboo fibers, whose fiber length is 50 mm or more. An epoxy resin is impregnated into the woody members with an impregnation factor of 5 weight-percent through 50 weight-percent. The woody members impregnated with the epoxy resin are joined together by way of heating and compressive molding so that the fibers thereof are uniformly aligned in the desired fiber-aligning direction.

Abstract: An electronic drum comprises a pad comprising a body portion made of a polymeric elastic material such as a rubber or a thermoplastic elastomer, and a surface layer portion which is bonded with the body portion so as to cover the body portion, the surface layer portion being made of a polymeric material having an elastic modulus of 0.5 to 20 GPa.

Abstract: A method of forming a wooden mold may include, but is not limited to, the following processes. A resin solution may be impregnated into at least one wood board thereby forming at least one resin-impregnated wood board. The resin solution may include a resin component. The resin component may include at least one water-soluble bifunctional acrylic resin and at least one trifunctional or higher-functional acrylic resin. The at least one resin-impregnated wood board may be deformed. The resin component in the at least one resin-impregnated wood board may be cured at the same time or after the at least one resin-impregnated wood board may be deformed.

Abstract: In order to provide a sound-absorbing material and a sound-absorbing panel which can be produce at a low-cost and have excellent beauty or appearance and excellent sound-absorbing characteristics, the sound-absorbing material is applied which is made from a metallic plate member (2), and multiple pierced apertures of 200 ?m or smaller diameter are arranged along a board thickness on the plate-shaped member (2).

Abstract: An electronic drum comprises a pad comprising a body portion made of a polymeric elastic material such as a rubber or a thermoplastic elastomer, and a surface layer portion which is bonded with the body portion so as to cover the body portion, the surface layer portion being made of a polymeric material having an elastic modulus of 0.5 to 20 GPa.