Abstract: An evaporator of the present invention includes an agitation vessel having a volatile component outlet and a concentrate outlet and configured to receive a raw material liquid, a heat source provided inside the agitation vessel, a liquid distributing portion provided within the agitation vessel and configured to cause the raw material liquid to flow down the heat source, and a first condenser provided on an outer circumference of the agitation vessel and configured to cool an inner wall of the agitation vessel. The evaporator of the present invention is useful in, for example, the concentration of various liquid chemicals and chemical products and the removal of volatile impurities from these chemicals and chemical products.

Abstract: An evaporation device including an agitation vessel to which raw material liquid is supplied. The agitation vessel has a volatile component outlet and a concentrate outlet, a jacket provided on an outer circumference and configured to heat an inner wall, and a liquid-distributing portion configured to cause the raw material liquid to flow down the inner wall. The agitation vessel includes storage portion surrounded by a bottom, the inner wall, and a partition wall portion configured to temporarily store the raw material liquid that flows down, the liquid-distributing portion is constituted by a rotating shaft and at least one channel part having a flow passage which, as the rotating shaft rotates, the raw material liquid temporarily stored in the storage portion flows upward from a lower side of the agitation vessel. The channel part is mounted to the rotating shaft, and the concentrate outlet is provided in the bottom.

Abstract: An evaporator of the present invention includes an agitation vessel having a volatile component outlet and a concentrate outlet and configured to receive a raw material liquid, a heat source provided inside the agitation vessel, a liquid distributing portion provided within the agitation vessel and configured to cause the raw material liquid to flow down the heat source, and a first condenser provided on an outer circumference of the agitation vessel and configured to cool an inner wall of the agitation vessel. The evaporator of the present invention is useful in, for example, the concentration of various liquid chemicals and chemical products and the removal of volatile impurities from these chemicals and chemical products.

Abstract: An evaporation device including an agitation vessel to which raw material liquid is supplied. The agitation vessel has a volatile component outlet and a concentrate outlet, a jacket provided on an outer circumference and configured to heat an inner wall, and a liquid-distributing portion configured to cause the raw material liquid to flow down the inner wall. The agitation vessel includes storage portion surrounded by a bottom, the inner wall, and a partition wall portion configured to temporarily store the raw material liquid that flows down, the liquid-distributing portion is constituted by a rotating shaft and at least one channel part having a flow passage which, as the rotating shaft rotates, the raw material liquid temporarily stored in the storage portion flows upward from a lower side of the agitation vessel. The channel part is mounted to the rotating shaft, and the concentrate outlet is provided in the bottom.

Abstract: The present invention provides a multi-structured internal heat exchange-type distillation column including at least an outermost heat exchange section, an intermediate section, and an innermost heat exchange section, in which the innermost heat exchange section is isolated from the intermediate section, the outermost heat exchange section is also isolated from the intermediate section, the outermost heat exchange section and the innermost heat exchange section are in communication with one another through at least two vapor tunnel connecting ports, a channel is formed inside the outermost heat exchange section in such a manner that, in a case where at least one of the vapor tunnel connecting ports serves as an inlet for vapor from the innermost heat exchange section into the outermost heat exchange section, and the other vapor tunnel connecting port serves as an outlet for vapor from the outermost heat exchange section back to the innermost heat exchange section, the vapor can smoothly flow in one-way traffi

Abstract: The present invention provides a multi-structured internal heat exchange-type distillation column comprising at least an outermost heat exchange section, an intermediate section, and an innermost heat exchange section, in which the innermost heat exchange section is isolated from the intermediate section, the outermost heat exchange section is also isolated from the intermediate section, the outermost heat exchange section and the innermost heat exchange section are in communication with one another through at least two vapor tunnel connecting ports, a channel is formed inside the outermost heat exchange section in such a manner that, in a case where at least one of the vapor tunnel connecting ports serves as an inlet for vapor from the innermost heat exchange section into the outermost heat exchange section, and the other vapor tunnel connecting port serves as an outlet for vapor from the outermost heat exchange section back to the innermost heat exchange section, the vapor can smoothly flow in one-way traff

Abstract: In the process of forming a through-hole or blind-hole at desired positions of a the substrate material, the present invention sets a drilling target position for each hole and a plurality of auxiliary drilling positions at a periphery of the drilling target position, and performs a plurality of drillings at the drilling target position and the plurality of auxiliary drilling positions. In another preferred embodiment of the present invention, a plurality of drillings are performed only at the auxiliary drilling positions per one hole at the desired position. According to the present invention, through-holes or blind-holes having several sizes of diameters can be formed by using one drilling jig under a single drilling condition. Accordingly, it is possible to efficiently produce circuit boards at low costs.

Abstract: The present invention comprises, in the process of forming a through-hole or blind-hole at desired positions of the substrate material, a step of setting a drilling target position for each hole and a plurality of auxiliary drilling positions at a periphery of the drilling target position, and a step a plurality of of drilling at the drilling target position and the plurality of auxiliary drilling positions. Also, in another preferred embodiment of the present invention, it comprises a step of a plurality of drilling only at the auxiliary drilling positions per one hole at the desired position. According to the present invention, through-holes or blind-holes having several sizes of diameters can be formed by using one drilling jig under single drilling condition. Accordingly, it is possible to efficiently produce circuit boards at low costs.

Abstract: With a liquid ejection apparatus where a liquid-transporting body is attached to an agitator shaft, the liquid-transporting body is revolved about the agitator shaft, with the rotational speed being changed in accordance with a change in liquid depth. Hence ejection liquid ejected from an upper opening of the liquid-transporting body over a large ejection distance and in sufficient volume, is distributed onto the inner surface of the tank and/or into the space above the liquid surface, thereby washing the inner surface of the tank, maintaining the heat transfer area, dispersing a foam layer on the liquid surface, and promoting evaporation of liquid in the tank.

Abstract: A cover mounting structure for a shelf assembly which allows easy mounting of a cover to a shelf and can reliably prevent falling of the cover even when the cover is unlocked. The shelf assembly includes a shelf having a pair of side plates and a plurality of electronic circuit packages mounted in the shelf. The cover mounting structure includes a cover having a front plate, a pair of side plates bent from the front plate at a substantially right angle thereto, and a top plate bent from the front plate at a predetermined angle thereto; and a pair of shafts fixed in the vicinity of the upper ends of the side plates of the cover so as to project inside of the cover. A pair of recesses for receiving the shafts are formed at the upper ends of the side plates of the shelf, and a pair of guiding slant surfaces for guiding reception of the shafts into the recesses are formed at the front edges of the upper ends of the side plates of the shelf.

Abstract: This invention relates to a subrack device applicable for an SDH network, and more particularly to a subrack device which can be produced flexibly in response to a customer's need. The subrack device has a subrack body commonly used regardless of a type of the subrack device. The subrack body has a circuit-board-unit housing portion and an outer-connecting-board mounting portion. Circuit boards and outer-connecting-board connecting-boards of different types are prepared. The outer-connecting-board mounting portion has a plurality of outer-connecting-board mounting territories. The outer-connecting-boards are plugged in the outer-connecting-board mounting territories to produce the subrack device meeting the customer's need.

Abstract: A heat pipe connector includes a housing having a hole shaped like a quadrangular pyramid with a large opening and a small opening. A plurality of clamp pieces are combined into a body that can be fitted into the hole shaped like a quadrangular pyramid. A heat pipe insertion opening, into which a heat pipe is inserted, is formed in the center of the combined pieces. Springs energize each clamp piece toward the small opening of the hole shaped like a quadrangular pyramid. The heat pipe is inserted into the heat pipe insertion opening from the side of the small opening of the housing hole shaped like a quadrangular pyramid. It is configured such that a spring force; of the springs as well as lateral surfaces of the hole shaped like a quadrangular pyramid apply a force to the clamp pieces to clamp the heat pipe.

Abstract: A test connector for an electronic circuit unit to be mounted on a shelf (11) of an electronic apparatus, which is adapted to be inserted on the shelf only when a projection (33) on the electronic circuit unit comes into a matching position relative to a groove (25) provided on a frame portion (21) of the shelf (11). Guide members (51, 53) with guide grooves (55, 65) which guide the opposite side edges of the electronic circuit unit (27) are provided on a printed wiring board (45) which has connectors (47, 49) at the opposite ends thereof. A plurality of rod members (61, 63) are slidably located on the guide member (51). When mounting the electronic circuit unit, at least one of the rod members (61) or (63) is slid forwardly by the projection (33), prohibiting the placement of the test connector (43) on the shelf (11) unless a protruded end of the rod member (63) is in a matching position relative to the groove (25) on the shelf (11).

Abstract: A heat radiation structure is provided for a semiconductor device, by which a mounting height of the semiconductor device can be lowered to increase an accommodation density in a shelf, and the mounting/dismounting is easily carried out. In a heat-radiation structure for a semiconductor device, in which a semiconductor device (2) is mounted on a printed circuit board (1) so that the bottom surface thereof confronts an opening (1a) formed in the printed circuit board, a heat-conductive member (3, 11) is brought into tight contact with the bottom surface of the semiconductor device and the opposite end surface of thereof is protruded through the opening (1a) from the back side of the printed circuit board while in tight contact with a heat-radiation plate (4) disposed at that position, so that heat generated from the semiconductor device is transmitted to the heat-radiation plate (4) via the heat-conductive member (3, 11) and radiated from the outer surface thereof into air.

Abstract: An optical fiber cable lead-in structure for a shelf (1) having a space (7) for receiving a remaining portion of the optical fiber cable (23), and an electronic circuit unit (12) mounted thereon having a board (14) and a surface plate (15) provided perpendicularly at one side of the board (14); the surface plate (15) covering the front side of the shelf (1) when mounting, comprising: an optical connection (21;25) for connection between the optical fiber cable (23) and the electronic circuit unit (12), which is provided on the board (14) adjacent to the backside of the surface plate (15); an outwardly protruding portion (33) that is provided in the surface plate (15) so as to correspond to the optical connection (21;25), such that an attaching and detaching operation of the optical connection (21;25) may be easily effected; and an opening (27) that is provided in the surface plate (15) such that the optical fiber cable (23) extending from the remaining fiber cable receiving space (7) is wired so as to extend a

Abstract: A device for providing an earth connection in a metal core printed circuit board (2) which is assembled in a shield casing (1) and which has an earth pattern (23) and a metal core (21), includes conductive connecting members (3) having one end soldered to the earth pattern (23) and another end in surface contact with the metal core (21) and the shield casing (1).

Abstract: An improved profiling apparatus performs a profiling operation after a profiling surface on a modelwork, and includes a vector arithmetic unit for calculating a projection component in an X-Y plane of the profiling surface in accordance with a signal from a tracer head, that is, a contact detector and a profiling direction arithmetic unit for calculating a profiling direction and a pick feeding direction on the basis of an output from the vector arithmetic unit. The profiling apparatus is effective with high accuracy in the profiling operation, less useless operation and short processing time, and is useful for a processing machine such as a diesinking machine and a machining center.

Abstract: The holding mechanism holds an object under inspection in a manner that the substantially entire surface of the object may relatively be scanned by a laser beam. A spherical integrating light collector has an opening disposed close to the inspected surface of the object held by the holding mechanism. A laser beam illuminating mechanism is coupled with the other end of the spherical integrating light collector, and illuminates the inspected surface of the object with the laser beam through the opening. A photo-electric converter receives the scattered light as is reflected by the inspected surface and collected by the spherical integrating light collector, and converts the scattered light into an electrical signal representing an amount of light. An analog to digital converter converts the electrical signal derived from the photo-electric converter into a digital signal. A peak detector receives the digital signal derived from the analog to digital converter to detect peak values at predetermined periods.

Abstract: A parallel light beam having a predetermined diameter is projected onto an aluminum deposition film formed on a semiconductor wafer in a direction normal to the wafer surface. Light reflected by the aluminum deposition film is converted into reflected light intensity data by a plurality of photoelectric conversion elements arranged in a spherical surface with the center thereof at the center of the parallel light beam incidence spot. The reflected light intensity data are stored in a RAM in a microprocessor. The data stored in the RAM are displayed as a reflected light intensity distribution plot on a display unit for comparison with a standard reflected light intensity distribution plot, whereby the bonding property of the aluminum deposition film is judged.

Abstract: A dimension measuring apparatus for measuring the dimensions of a secondary electron emission object has a scanning electron microscope main body with a display, and a dimension measuring section connected to the main body. The dimension measuring section has a cursor setter for displaying cursors on the display. A memory stores image signals which are divided into picture elements and assigned to addresses. The image signals are used as image data. A CPU section receives the image data from the memory, obtains reference points for designating two ends of a line corresponding to a dimension of a sample to be measured based on the received image signals, and measures the dimension of the sample.