Abstract: An electronic apparatus for musical instruments includes a first component configured to be coupled to a strap, a second component configured to be coupled to a musical instrument, a generator configured to generate a rotational movement in accordance with a distance between the first component and the second component, which is configured to change based on a tension applied to at least one of the first component or the second component, and a rotation detection device configured to detect a rotation amount of the rotational movement generated by the generator.

Abstract: To provide zinc oxide particles having a surface coated with organosilicon, the particles exhibiting a high dispersibility and excellent water repellency. Zinc oxide particles having a surface coated with organosilicon, the zinc oxide particles having a primary particle size of 0.1 ?m or less as measured based on a transmission electron micrograph, and a median size based on a volume of 0.15 ?m or less, where the median size is determined by charging the powder in isopropyl alcohol, dispersing the powder by application of ultrasonic wave with a rated output of 600 W and an oscillation amplitude of 100% generated by an ultrasonic homogenizer at a normal temperature for 30 seconds, and measuring the dispersion by a laser diffraction scattering method.

Abstract: A terminal is constructed to be connected to an attachment target by a bolt, and includes a first surface, a through hole, and an asperity portion. A material for the terminal is aluminum, etc. The terminal has a Vickers hardness equal to or higher than 80 HV. A ratio S1/S2 between a first area S1 and a second area S2 while the first surface and the attachment target are connected to each other by tightening of the bolt is equal to or lower than 0.8. The first area S1 is an area of a region where the first surface is in contact with the attachment target at a pressure equal to or higher than 25 MPa. The second area S2 is an area of an annular region around the bolt. The first area S1 is equal to or larger than 5 mm2.

Abstract: An inkjet head driving method includes applying a voltage signal having a combined drive waveform that includes unit drive waveforms to a pressure generator and causing a nozzle to jet ink droplets such that the droplets land on a medium as one droplet. Each unit drive waveform includes a first pulse waveform for jetting a droplet and a second pulse waveform for pulling back the jetted droplet. The first and second pulse waveforms each include an expansion part for expanding a pressure chamber and a following contraction part for contracting the chamber. The combined drive waveform includes a first unit drive waveform and a following second unit drive waveform. A voltage amplitude of the contraction part of the second pulse waveform in the second unit waveform is greater than that of the contraction part of the second pulse waveform in the first unit drive waveform.

Abstract: The aluminum alloy in the cross-section of the surface layer region of the aluminum alloy plate contains a compound containing one or more elements selected from the group consisting of silicon, magnesium, iron, copper, manganese, chromium, zinc, zirconium, and titanium, and aluminum. The number of fields of view containing the compound having an equivalent circle diameter of 5 ?m or more out of 10 fields of view extracted from the cross-section is 3 or less. In the cross-section, the number density of the compound having an equivalent circle diameter of 1.5 ?m or more and less than 5.0 ?m is 0.0010 per ?m2 or less, and the area ratio of the compound having an equivalent circle diameter of 0.5 ?m or more is 0.1% or more and less than 1.0%.

Abstract: The present invention provides an oil recovery agent which has a property of improving fluidity by reducing viscosity of oil (viscosity reduction properties) and a property of rapidly separating after being dispersed in oil (immediate separability), and which enables to recover oil rapidly. The oil recovery agent of the present invention contains a polyvinyl alcohol resin having a water contact angle of 70° or less when formed into a film.

Abstract: An aluminum alloy sheet for a beverage can body has a composition including 0.10 mass % or more and 0.70 mass % of Si; 0.10 mass % or more and 0.80 mass % or less of Fe; 0.10 mass % or more and 0.30 mass % or less of Cu; 0.50 mass % or more and 1.50 mass % or less of Mn; 1.00 mass % or more and 1.50 mass % or less of Mg, and a balance including Al and inevitable impurities. An n-value in an equivalent plastic strain range of 0.01 to 0.03 is 0.049 or greater. An n-value in an equivalent plastic strain range of 0.3 to 1.1 is 0.063 or less.

Abstract: An electronic musical instrument according to one embodiment of the present disclosure includes a loudspeaker which releases sounds in a first direction in accordance with an instrument playing operation, an internal component which includes a substrate, a case which houses the loudspeaker and the internal component and has a first region which faces a rear face of the loudspeaker and a second region which faces a rear face of the internal component and does not face the rear face of the loudspeaker, and a sound releasing member which is disposed on an installation face side and in the second region, and releases acoustics in an acoustic space which is formed around the loudspeaker in a second direction which is opposite to the first direction.

Abstract: The aluminum alloy in the cross-section of the surface layer region of the aluminum alloy plate contains a compound containing one or more elements selected from the group consisting of silicon, magnesium, iron, copper, manganese, chromium, zinc, zirconium, and titanium, and aluminum. The number of fields of view containing the compound having an equivalent circle diameter of 5 ?m or more out of 10 fields of view extracted from the cross-section is 3 or less. In the cross-section, the number density of the compound having an equivalent circle diameter of 1.5 ?m or more and less than 5.0 ?m is 0.0010 per ?m2 or less, and the area ratio of the compound having an equivalent circle diameter of 0.5 ?m or more is 0.1% or more and less than 1.0%.

Abstract: An aluminum alloy sheet has a composition comprising 0.5% or less by mass of Si, 0.7% or less by mass of Fe, 0.3% or less by mass of Cu, 0.4 to 1.5% by mass of Mn, 0.7 to 1.5% by mass of Mg and an balance comprising Al and inevitable impurities. A degree of integration in the Goss orientation is 1.5 or more. A degree of integration in the Cu orientation is 6.2 or less. A tensile strength is 200 to 310 MPa. An areal ratio of an ?-Al—Fe—Mn—Si based intermetallic compound with an equivalent circle diameter of 0.5 ?m or more is preferably 2.6% or more.

Abstract: A resin composition containing: a hydrophilic resin; and a metal compound, wherein a mass ratio between a content of the hydrophilic resin and a content of the metal compound in terms of metal (a content of the hydrophilic resin:a content of the metal compound in terms of metal) is 90:10 to 20:80.

Abstract: An electronic device includes an attaching member including a first attaching member having a first male portion protruding in a first direction from an outer circumference of the first attaching member, and a second attaching member having a first female portion corresponding to the first male portion, and an attached member to which the attaching member is attached. The attaching member includes either one of a second male portion extending in a second direction different from the first direction and a second female portion corresponding to the second male portion. The attached member includes the other of the second male portion and the second female portion.

Abstract: A keyboard musical instrument includes a musical instrument case including an upper case, and a lower case having a concave part provided on a lower surface and opened on an outer peripheral surface-side, and a strap pin fixing portion is arranged in the concave part.

Abstract: A switch device (4, 5) includes: a cap (7) including, on a top surface (711), a first region (71a) and a second region (71b) corresponding to a position where an internal light (133) is disposed and being thinner than the first region (71a); and a switch (61, 62) to which the cap (7) is mounted.

Abstract: An inkjet head driving method includes applying a voltage signal having a combined drive waveform that includes unit drive waveforms to a pressure generator and causing a nozzle to jet ink droplets such that the droplets land on a medium as one droplet. Each unit drive waveform includes a first pulse waveform for jetting a droplet and a second pulse waveform for pulling back the jetted droplet. The first and second pulse waveforms each include an expansion part for expanding a pressure chamber and a following contraction part for contracting the chamber. The combined drive waveform includes a first unit drive waveform and a following second unit drive waveform. A voltage amplitude of the contraction part of the second pulse waveform in the second unit waveform is greater than that of the contraction part of the second pulse waveform in the first unit drive waveform.

Abstract: There is provided an ink jet recording apparatus including an ink jet head and a drive circuit. The ink jet head forms an image on a recording medium in response to a drive signal applied to multiple piezoelectric elements. The drive signal causes multiple pressure chambers corresponding to the multiple piezoelectric elements to expand or to contract in volume and causes ink in the multiple pressure chambers to be discharged from multiple nozzles. The drive circuit generates a drive signal for discharging multiple liquid droplets to one pixel for combining the multiple liquid droplets together and applies the drive signal to each of the multiple piezoelectric elements of the ink jet head. The drive signal includes multiple discharge pulses which make velocities of tips of respective liquid columns substantially same after a predetermined time from starting of ink discharge from the nozzles.

Abstract: An electronic device, which is an electronic musical instrument as an electronic device, includes: a rotating shaft inclined with respect to a perpendicular line of a panel; and a rotary knob that is attached to the rotating shaft and has a fingering marker portion provided opposite to an inclination direction of the rotating shaft.

Abstract: A device includes: a frame-shaped support member that is configured to support an internal member; a fixing member that is inside a frame of the support member and is configured to fix the internal member; and a reinforcement member that is connected to the fixing member and with which the fixing member is reinforced. The reinforcement member is not connected to the support member.

Abstract: A switch device (4, 5) includes: a cap (7) including, on a top surface (711), a first region (71a) and a second region (71b) corresponding to a position where an internal light (133) is disposed and being thinner than the first region (71a); and a switch (61, 62) to which the cap (7) is mounted.

Abstract: A keyboard instrument includes: a case (upper case) including a back surface member having an insertion port into which a music stand is inserted, and an upper surface member having a recessed portion provided corresponding to the insertion port; and an exterior member that is disposed on an upper side of the upper surface member and covers the recessed portion.