Abstract: A droplet formation device including an ejection head which ejects droplets of a liquid and a controller which supplies an electric signal and controls operations of the ejection head. The ejection head has a tubular liquid holding module which holds the liquid, and a vibration module which ejects the droplets based on the electric signal. The vibration module has a membranous element which has an ejection port from which the droplets are ejected and a vibration unit which causes the membranous element to vibrate based on the electric signal, wherein the vibration module covering one end of the liquid holding module and forming a liquid chamber which holds the liquid together with the liquid holding module. In the liquid chamber, the other end of the liquid holding module being open to the atmosphere, and the controller supplies the vibration unit with the electric signal having a drive frequency.

Abstract: A wiring board include: a base material; a wiring disposed on the base material; and a cover lay laminated on the base material and that covers the wiring. The cover lay includes an open portion exposing a part of the wiring, the cover lay includes a protection layer and an adhesive layer that adheres the protection layer to the base material, the cover lay has burrs that do not contact the base material at an edge portion of the cover lay along the open portion, an end face of the adhesive layer that faces the open portion contacts the wiring, and an end portion of the adhesive layer that constitutes the burrs is outside the end face of the adhesive layer.

Abstract: A production apparatus for a shaped body containing sedimenting particles and a method for producing a shaped body containing sedimenting particles that can continuously mass-produce shaped bodies containing a fixed amount of sedimenting particles. A production apparatus for a shaped body containing sedimenting particles, the apparatus being provided with an ejection head that ejects a liquid containing sedimenting particles, as a liquid droplet, onto a droplet landing element, and a supply apparatus that supplies the liquid to the ejection head, wherein the supply apparatus includes a storage module that extends in a direction transverse to the vertical direction and that stores the liquid, a supply module that supplies the liquid in the storage module from one end in a central axis direction of the storage module, and an agitation unit that rotates the storage module in a circumferential direction about the central axis of the storage module to agitate the liquid inside the storage module.

Abstract: According to one embodiment, a drive detection device includes: a first terminal; a second terminal; a first transistor having a first end connected to the first terminal, a second end connected to a first node, and a control end connected to the second terminal; a second transistor having a first end connected to the second terminal, a second end connected to a second node, and a control end connected to the first terminal; a first current mirror circuit having an input end connected to the first node and an output end connected to the second node; a current source having an input end connected to the second node; and a third transistor having a control end connected to the second node.

Abstract: A method for producing a flexible printed wiring board using a photoresist includes placing the photoresist, including a first region and a second region, on a substrate, placing a first photomask including a first light-transmitting portion such that the first light-transmitting portion faces the first region to expose the photoresist through the first light-transmitting portion, and placing a second photomask including a second light-transmitting portion such that the second light-transmitting portion faces the second region to expose the photoresist through the second light-transmitting portion. The first region is adjacent to the second region such that an edge portion of the first region overlaps an edge portion of the second region. The first light-transmitting portion has a linear shape including a first tip having a tapered shape.

Abstract: A droplet discharge device for discharging a droplet into one or more droplet storage parts of a storage vessel; the droplet discharge device including: a droplet discharge part configured to discharge the droplet in a predetermined amount from a nozzle hole of the droplet discharge part; a storage vessel holding part configured to hold the storage vessel; a mover part configured to move the droplet discharge part relative to the storage vessel that is held by the storage vessel holding part; and a detecting part configured to detect a shape of a surface of the storage vessel that is held by the storage vessel holding part.

Abstract: A liquid droplet forming apparatus includes an ejection head configured to eject liquid droplets of liquid, in which the ejection head includes a tubular liquid holder that holds the liquid, and a vibration unit that covers one end side of the liquid holder, forms a liquid chamber holding the liquid together with the liquid holder, and ejects the liquid droplets on the basis of an electric signal to be applied, the vibration unit includes a vibration element that vibrates on the basis of the electric signal, a membrane that includes an outlet ejecting the liquid droplets, and a resonator that vibrates on the basis of the vibration of the vibration element and transmits the vibration of the vibration element to the membrane by vibrating itself, and the resonator is a plate that overlaps with the membrane as viewed in a plan view and is in contact with the membrane.

Abstract: A droplet discharge device for discharging a droplet into recess parts of a storage vessel includes a storage vessel, a discharge head configured to insert a discharge surface into a recess part and discharge droplets while moving in two horizontal directions, a mounting table, a vertical position adjusting part configured to change a relative vertical position between the head and table, a vertical position adjustment control part configured to control the adjusting part, a horizontal position detecting part configured to detect a horizontal position of the storage vessel, and a target position detecting part configured to detect, before starting discharge, a distance from a vertical reference height to a discharge target surface, wherein the control part controls, based on the detected distance, the vertical position of the head or table during the discharge such that a discharge height of the discharge surface relative to the discharge target surface stays constant.

Abstract: A battery capacity calculation device includes: a controller configured to: acquire, while a battery is in charge, a first voltage value and a charge current value of the battery, acquire, while charging of the battery is in pause, a second voltage value of the battery, calculate an impedance value of the battery by using the first voltage value, the second voltage value, and the charge current value, calculate an impedance growth that is a ratio of the impedance value to an initial impedance value recorded in a memory in advance, acquire the number of cycles of the battery, acquire time until a temperature of the battery falls within a predetermined temperature range and an output voltage value of the battery falls within a predetermined voltage range, and calculate a full charge capacity of the battery by using the number of cycles, the impedance growth, and the time.

Abstract: The invention provides a rubber composition for golf balls, comprising: (a) a base rubber, (b) a co-crosslinking agent which is an ?,?-unsaturated carboxylic acid or a metal salt thereof or both, (c) an organic peroxide, (d) water or a moisture-providing agent, (e) a hindered phenol-type antioxidant including a substituent having thioether structure, wherein the content of component (e) is at least 0.2 part by weight per 100 parts by weight of component (a).

Abstract: A method for producing a flexible printed wiring board using a photoresist includes placing the photoresist, including a first region and a second region, on a substrate, placing a first photomask including a first light-transmitting portion such that the first light-transmitting portion faces the first region to expose the photoresist through the first light-transmitting portion, and placing a second photomask including a second light-transmitting portion such that the second light-transmitting portion faces the second region to expose the photoresist through the second light-transmitting portion. The first region is adjacent to the second region such that an edge portion of the first region overlaps an edge portion of the second region. The first light-transmitting portion has a linear shape including a first tip having a tapered shape.

Abstract: What is provided is a liquid droplet forming apparatus capable of stably ejecting dispersion liquid, as liquid droplets, containing settling particles having constant concentration. A liquid droplet forming apparatus includes an ejection head that has a liquid chamber storing liquid containing settling particles and that ejects a liquid droplet of the liquid, stirrer for stirring the liquid held in the liquid chamber, posture controller for controlling a posture of the stirrer, and a control unit that controls operations of the ejection head, the stirrer, and the posture controller, in which the stirrer includes a tube-like member inserted into the liquid chamber, and a liquid feeding portion that sucks or discharges the liquid stored in the liquid chamber via the tube-like member, and the posture controller controls one or both of the position and the direction in which the stirrer sucks and discharges the liquid in the liquid chamber.

Abstract: A gel precursor composition causative of no apprehension about exhibiting cytotoxicity can be made. A method for producing a gel causative of no apprehension about exhibiting cytotoxicity, using the gel precursor composition can be performed. One of the present embodiments is a gel precursor composition including: a biocompatible polymer; a crosslinking agent to be activated by a specific substance; and a photoresponsive compound bound to the specific substance, or encompassing the specific substance.

Abstract: A method for controlling a charging of a battery pack for a portable electronic device. The battery pack includes one or more cell blocks, each having a plurality of battery cells connected in parallel. The method includes the following steps. Determining, for each of the one or more cell blocks, a value of a first charging current flowing through a first battery cell that has the smallest capacity among the plurality of battery cells. Comparing, for each of the one or more cell blocks, the value of the first charging current with a first overcurrent value of the first battery cell to detect overcurrent in the first battery cell. Generating, in response to detecting the overcurrent in the first battery cell of any of the one or more cell blocks, a first overcurrent signal to reduce a total charging current of the battery pack.

Abstract: A conveying device includes a first pair of nipping rollers, a second pair of nipping rollers, a position corrector configured to correct a position of a recording medium in a width direction of the recording medium, an end position detector configured to detect an end position of the recording medium in the width direction, and circuitry configured to, in adjustment of the end position detector, stop conveying the recording medium in response to arrival of a leading end of the recording medium at the end position detector, cause the position corrector to move the recording medium toward an outside of the conveyance passage in the width direction to a position at which the end position detector is covered by the recording medium, adjust the output of the end position detector, and cause the end position detector to detect the recording medium.

Abstract: A liquid droplet forming device for stably forming and ejecting a liquid droplet of a dispersion liquid containing settling particles includes an ejection head that ejects a liquid droplet of a liquid containing settling particles, and a control unit. The control unit controls a behavior of the ejection head by supplying an electrical signal. The ejection head includes a liquid holding portion that holds the liquid, a film-like member that has an ejection hole for ejecting the liquid droplet and that forms a liquid chamber, which holds the liquid, together with the liquid holding portion, and vibration applying means for vibrating the film-like member based on the electrical signal. The electrical signal includes an ejection signal for forming the liquid droplet by vibrating the film-like member, a stirring signal for vibrating the film-like member and a micro-vibration signal.

Abstract: A liquid droplet forming device for stably forming and ejecting a liquid droplet of a dispersion liquid containing settling particles includes an ejection head that ejects a liquid droplet of a liquid containing settling particles, and a control unit. The control unit controls a behavior of the ejection head by supplying an electrical signal. The ejection head includes a liquid holding portion that holds the liquid, a film-like member that has an ejection hole for ejecting the liquid droplet and that forms a liquid chamber, which holds the liquid, together with the liquid holding portion, and vibration applying means for vibrating the film-like member based on the electrical signal. The electrical signal includes an ejection signal for forming the liquid droplet by vibrating the film-like member, a stirring signal for vibrating the film-like member and a micro-vibration signal.

Abstract: A semiconductor device includes a first transistor including a normally-on transistor with a first source, a first drain, and a first gate and a second transistor including a normally-off transistor with a second source, a second drain electrically connected to the first source, and a second gate. A first gate signal, which turns on later than a second gate signal at the time of turn-on of the device and turns off earlier than the second gate signal at the time of turn-off of the device, is input to the first gate. The second gate signal, which turns on earlier than the first gate signal at the time of the turn-on and turns off later than the first gate signal at the time of the turn-off, is input to the second gate. An amount of delay of each of the first gate signal and the second gate signal is set independently.

Abstract: A method of manufacturing a wiring board includes covering a part of a wiring disposed on a base material for the wiring board by disposing a separation layer on the base material; covering the wiring and the separation layer by disposing a cover lay including a removal portion on the base material; and removing the removal portion of the cover lay laminated on the separation layer and exposing a part of the wiring from the cover lay by peeling the separation layer from the base material.

Abstract: A method for manufacturing a cell culture substrate in which cells are fixed via a hydrogel on a surface of a substrate includes forming a film of a first liquid on the surface of the substrate, and ejecting droplets of a second liquid onto the film.