Abstract: A percussion instrument includes at least one pad and a support frame supporting the pad. The support frame includes a central vertical frame, a left vertical frame located in a left rear direction of the central vertical frame when viewed from the player side, a right vertical frame located in a right rear direction of the central vertical frame when viewed from the player side, a left transverse frame extending between the central vertical frame and the left vertical frame and connecting the central vertical frame with the left vertical frame, and a right transverse frame extending between the central vertical frame and the right vertical frame and connecting the central vertical frame with the right vertical frame. The at least one pad is connected with the central vertical frame.

Abstract: A rod-shaped electronic percussion instrument is provided. A rod-shaped percussion instrument, which has a striking surface made of an elastic material in a substantially rectangular shape when viewed from above, is characterized in including: a plate-shaped member, which is made of a hard material in a substantially rectangular shape and is elastically supported by a position facing a bottom surface side of the striking surface; and two sensors, which are disposed on a surface side of the plate-shaped member and detect a vibration due to striking on the striking surface, wherein the two sensors are connected to electrically combine detection signals detected by the sensors and output the same.

Abstract: A cymbal pickup is described, including a sensor detecting the vibration of the cymbal, and a sensor attaching part to which the sensor is attached. The cymbal has, through its center, a hole that allows a rod to be inserted through. The sensor attaching part includes: a first abutting part having a first insertion hole for pass of the rod, a second abutting part configured opposite to a side of the first abutting part and having a second insertion hole for pass of the rod, and an insertion part between the two abutting parts to maintain a separation distance between the opposite sides of the two abutting parts. The sensor is attached to a side of the first or the second abutting part. The cymbal pickup abuts the cymbal and is fixed together with the cymbal to detect its vibration while the rod is inserted through them.

Abstract: A percussion attachment is provided to be detachably installed on a percussion instrument. The percussion attachment includes a main body part having a struck part to be struck by a player, an extended part extending from a side surface of the main body part to be locked to one of the tension bolts, and a restricting part protruding from the side surface of the main body part near the extended part and supporting the percussion instrument to restrict a displacement of the main body part in a state that the extended part is tightened together with the hoop by one of the tension bolts.

Abstract: A polycarbonate resin composition for light guides which has excellent light guiding properties and flame retardancy, a light guide and a surface light source body. The light guide is formed from a resin composition which comprises (A) 100 parts by weight of a polycarbonate resin (component A) and (B) 0.001 to 0.1 part by weight of a metal salt-based compound (component B).

Abstract: Pipe holders retain a first pipe and a second pipe having a connector cable extending through the second pipe. The pipe holder has a first retaining section that detachably holds and fixes the first pipe and a second retaining section that detachably holds and fixes the second pipe. A second retaining chamber is surrounded by an internal surface of the second retaining section. A guide section communicatively connects the second retaining chamber to outside of the pipe holder, wherein the first retaining section, the second retaining section and the guide section are made of metal, and the connector cable that extends through second pipe and has at least one end to be connected to an electronic musical instrument is guided through the guide section to the outside. A coupling section couples the first retaining section and the second retaining section, wherein the guide section is formed in the coupling section.

Abstract: A percussion instrument includes at least one pad and a support frame supporting the pad. The support frame includes a central vertical frame, a left vertical frame located in a left rear direction of the central vertical frame when viewed from the player side, a right vertical frame located in a right rear direction of the central vertical frame when viewed from the player side, a left transverse frame extending between the central vertical frame and the left vertical frame and connecting the central vertical frame with the left vertical frame, and a right transverse frame extending between the central vertical frame and the right vertical frame and connecting the central vertical frame with the right vertical frame. The at least one pad is connected with the central vertical frame.

Abstract: A cable holder which can securely hold cables is provided. The cable holder for holding cables comprises a base, a cable hole drilled into the base to hold the cables, a holding hole drilled into the base to hold holding objects, a first passage formed in an outer peripheral part of the base surrounding the holding hole to connect between outside and the holding hole, and a second passage formed between the holding hole and the cable hole to connect between the holding hole and the cable hole.

Abstract: A percussion instrument includes a mainframe having a bottom part defining a lower surface. A head is tensioned over an inner part of the mainframe. A hoop structure is arranged over the outer periphery of the head and applies tension to the head. The hoop structure has a lower surface provided with a plurality of recesses. Female threaded connector parts are contained within the recesses. A plurality of bolts extend through the bottom part of the mainframe and engage the female threaded connector parts, to affix the hoop structure to the mainframe. The bolts extend into the bottom part of the mainframe, such that exposure of the bolts on the upper surface side of the hoop structure can be avoided.

Abstract: A bonding method of bonding two base members together through a bonding film is provided. The bonding method is a method for forming a bonded body in which a first base member and a second base member are bonded together through the bonding film. The bonding method includes: applying a liquid material containing a silicone material composed of silicone compounds onto a surface of at least one of the first and second base members to form a liquid coating on the surface; drying the liquid coating so that it is transformed into the bonding film on the surface of the at least one of the first and second base members; and applying energy to the bonding film so that a bonding property is developed in the vicinity of a surface thereof, to thereby bond the first and second base members together through the bonding film.

Abstract: Pipe holders retain a first pipe and a second pipe having a connector cable extending through the second pipe. The pipe holder has a first retaining section that detachably holds and fixes the first pipe and a second retaining section that detachably holds and fixes the second pipe. A second retaining chamber is surrounded by an internal surface of the second retaining section. A guide section communicatively connects the second retaining chamber to outside of the pipe holder, wherein the first retaining section, the second retaining section and the guide section are made of metal, and the connector cable that extends through second pipe and has at least one end to be connected to an electronic musical instrument is guided through the guide section to the outside. A coupling section couples the first retaining section and the second retaining section, wherein the guide section is formed in the coupling section.

Abstract: The invention provides a process comprising: a crystallization step of concentrating and crystallizing the ammonium salt of sulfuric acid from an aqueous solution that contains the ammonium salt of sulfuric acid; a solid-liquid separation step of solid-liquid separating the ammonium salt of sulfuric acid obtained in the crystallization step, and a crystallization mother liquid recycling step of recycling a crystallization mother liquid obtained in the solid-liquid separation step to at least one step selected from the crystallization step and one or more steps that precede the crystallization step, in which not all of the crystallization mother liquid is recycled.

Abstract: A clamp for a musical instrument stand is equipped with a pipe retaining section having a metal base section formed with an abutting surface having a cylindrical inner peripheral surface, and a metal fastening section formed with a fastening surface having a cylindrical inner peripheral surface that is opposite to the abutting surface of the base section, wherein the abutting surface and the fastening surface hold an outer peripheral surface of a pipe from one side and another side to retain the pipe, and the clamp comprises a pipe sleeve in a semi-cylindrical shape that is made of a resin material, and has an outer peripheral surface to be abutted to the abutting surface or the fastening surface so as to be mounted on the abutting surface or the fastening surface; and a recessed section that is provided in a concave shape in a portion of at least one surface among an outer peripheral surface of the pipe sleeve, the abutting surface and the fastening surface, wherein a predetermined space surrounded by the re

Abstract: The present invention provides a method of producing a polymer, which comprises the step of performing a polymerization reaction using, as a starting material, an organic acid obtained by allowing a microorganism or a treated cell thereof to act on an organic raw material, wherein said microorganism has an ability to produce an organic acid and has been modified so as to produce less aromatic carboxylic acid as compared to an unmodified strain.

Abstract: A bonding method of bonding two base members together through a bonding film having a fine pattern at low cost, and a bonded body with the bonding film which is formed using the bonding method are provided. The bonding method is a method for forming a bonded body in which a first base member and a second base member are bonded together through a bonding film having a predetermined pattern.

Abstract: A support structure for a percussion instrument has a support member configured to suppress the transfer of vibrations to the floor surface, and provide stability during performance. The entire percussion instrument and a portion or all of the pedal device are elastically supported above the floor, on the support member through the first vibration isolating members. Vibrations from the percussion instrument member and the pedal device are dampened by the first vibration isolating members. The first vibration isolating members are provided between the support member and the percussion instrument member, to suppress the transfer of vibrations to the floor surface, while the support member is stably supported on the floor surface.

Abstract: A percussion instrument that suppresses erroneous detection by a rim sensor includes a first plate affixed to a frame, a second plate elastically supported on the first plate by one or more elastic members, and a rim sensor attached to the second plate. Large vibrations of the frame from an impact of a strike on the rim are transmitted to the second plate, and the rim sensor provides an output corresponding to the striking force. Also, vibrations of the frame generated by striking sound or external sound is attenuated by the elastic member, to suppress transmission of such vibrations to the second plate.

Abstract: The invention provides a process comprising: a crystallization step of concentrating and crystallizing the ammonium salt of sulfuric acid from an aqueous solution that contains the ammonium salt of sulfuric acid; a solid-liquid separation step of solid-liquid separating the ammonium salt of sulfuric acid obtained in the crystallization step, and a crystallization mother liquid recycling step of recycling a crystallization mother liquid obtained in the solid-liquid separation step to at least one step selected from the crystallization step and one or more steps that precede the crystallization step, in which not all of the crystallization mother liquid is recycled.

Abstract: A percussion instrument includes a mainframe having a bottom part defining a lower surface. A head is tensioned over an inner part of the mainframe. A hoop structure is arranged over the outer periphery of the head and applies tension to the head. The hoop structure has a lower surface provided with a plurality of recesses. Female threaded connector parts are contained within the recesses. A plurality of bolts extend through the bottom part of the mainframe and engage the female threaded connector parts, to affix the hoop structure to the mainframe. The bolts extend into the bottom part of the mainframe, such that exposure of the bolts on the upper surface side of the hoop structure can be avoided.

Abstract: A cymbal pickup is described, including a sensor detecting the vibration of the cymbal, and a sensor attaching part to which the sensor is attached. The cymbal has, through its center, a hole that allows a rod to be inserted through. The sensor attaching part includes: a first abutting part having a first insertion hole for pass of the rod, a second abutting part configured opposite to a side of the first abutting part and having a second insertion hole for pass of the rod, and an insertion part between the two abutting parts to maintain a separation distance between the opposite sides of the two abutting parts. The sensor is attached to a side of the first or the second abutting part. The cymbal pickup abuts the cymbal and is fixed together with the cymbal to detect its vibration while the rod is inserted through them.