摘要:
Disclosed herein is a moisture sealing apparatus for a powdery brazing flux, comprising an open-topped container for the powdery brazing flux, a nozzle positioned at the center over the container and adapted to cause dry air to flow out through a slit opened out in all horizontal directions, and an air pipe for supplying the dry air, which is connected to the nozzle. According to the apparatus, a powdery flux having strong deliquescence is always kept a completely dry state.
摘要:
A control circuit can drive an electric motor such as a stepping motor and a DC torque motor within a wide supply voltage range so that its rotor follows a selected speed pattern without error. The control circuit includes a monitoring circuit for monitoring a level of the supply voltage to output a detection signal. The control circuit also includes a memory storing a plurality of speed patterns, the plurality of speed patterns corresponding respectively to different levels of the supply voltage. One of the plurality of speed patterns is selectively read in response to the detection signal. The electric motor is then driven in accordance with the read speed pattern.
摘要:
An ink jet recording head in which the ink in an ink cavity is jetted in the form of a droplet from an ink nozzle by utilizing a piezo-electric effect. The recording head includes a piezo-electric plate made of piezo-electric material and having a plurality of elongated ink cavities formed therein, and a cover plate fixedly placed on the piezo-electric plate. In one of the embodiments, each of the plurality of elongated ink cavities has two deep grooves formed in the longitudinal direction of the ink cavities and a shallow groove provided between the two deep grooves. Voltage applying electrodes are provided on piezo-electric portions which form the shallow grooves.
摘要:
Provided is a method of mixing first and second liquids having mutual solubility inside a mixing flow channel formed by a micro flow channel. This method includes: causing the first and second liquids to be joined to each other inside the mixing flow channel; and forming a slug flow, in which mixing subject cells (60) formed by the joined liquid and insoluble fluid cells (63) formed by an insoluble fluid are alternately arranged, inside a flow channel at the downstream side of an insoluble fluid supply position in a manner such that the insoluble fluid having insolubility with respect to both mixing subject liquids is supplied to the joined liquid flowing through the flow channel in a direction intersecting the flow channel so that the joined liquid is divided with a gap therebetween, thereby mixing the first mixing subject liquid and the second mixing subject liquid contained in each mixing subject cell inside the downstream flow channel.
摘要:
To promote mixture of fluids on a plurality of stages, flow channels include a plurality of merging portions which penetrate from a top surface to a back surface of a substrate. An end of each of the sub channels is disposed so as to overlap the main channel at each of positions separated along the direction in which the main channel extends, and each of the merging portions communicates the main channels and the ends of the sub channels with each other, thereby changing a flow direction of the second fluid flowing through the sub channels to the thickness direction of the substrate, and merges the second fluid with the first fluid flowing through the main channels.
摘要:
An image forming system includes an image forming apparatus, a transmission apparatus, a reception section that is provided in the image forming apparatus and receives a designation of the transmission apparatus, a first transmission section that is provided in the image forming apparatus and transmits apparatus information indicating the own apparatus to a transmission apparatus designated in the reception section, a first storage unit that is provided in the transmission apparatus and stores the apparatus information transmitted from the first transmission section, a second transmission section that is provided in the transmission apparatus and transmits image data to an image forming apparatus indicated by the apparatus information stored in the first storage section, and an image forming unit that is provided in the image forming apparatus and forms an image corresponding to the image data transmitted from the second transmission section.
摘要:
A cleaning element for an image-forming apparatus, includes: a shaft; a strip-shaped sheet which is disposed helically on an outer circumferential surface of the shaft; and an adhesive layer which is disposed between the shaft and the strip-shaped sheet and binds the shaft and the strip-shaped sheet, the strip-shaped sheet having, on a surface thereof facing the shaft, an unbound region in which the adhesive layer is absent, at an end in a width direction of the strip-shaped sheet which faces a downstream side in a rotation direction of the shaft.
摘要:
A semiconductor device has a die pad, a heat dissipating plate in the form of a frame arranged between the die pad and leads so as to surround the die pad, members that connect the die pad and the inner edge of the heat dissipating plate, and a suspension lead linked to the outer extension of the heat dissipating plate. A semiconductor chip larger than the die pad is mounted over the die pad and the members. Top surfaces of the die pad and the members in opposition to the back surface of the chip are bonded to the back surface of the chip with silver paste. Heat is conducted from the back surface of the chip to the heat dissipating plate via the silver paste, the die pad, and the members, and dissipated to the outside of the semiconductor device via the leads.
摘要:
According to a medical traction device containing a polymer molded article having biocompatibility as a weight for traction of a living tissue to be resected under observation with an endoscope, and a medical traction equipment containing the medical traction device and a grasping member connected to each other, such a medical traction device or traction equipment is provided that in ESD in a digestive tract, a dissected living tissue is efficiently removed from the operative field also in a direction that is different from the moving direction of the endoscope, thereby maintaining the field of view, and the procedures are thus performed safely and rapidly.
摘要:
To improve the heat dissipation characteristics of a semiconductor device.The semiconductor device has a die pad, a heat dissipating plate in the form of a frame arranged between the die pad and a plurality of leads so as to surround the die pad, a plurality of members that connect the die pad and the inner edge of the heat dissipating plate, and a suspension lead linked to the outer extension of the heat dissipating plate, wherein a semiconductor chip the outer shape of which is larger than the die pad is mounted over the die pad and the members. The top surface of the die pad and the top surface of the members at the part in opposition to the back surface of the semiconductor chip are bonded to the back surface of the semiconductor chip in their entire surfaces with a silver paste. Heat in the semiconductor chip is conducted from the back surface of the semiconductor chip to the heat dissipating plate via the silver paste, the die pad, and the member, and dissipated to the outside of the semiconductor device therefrom via the lead.