Abstract: An aggregating agent injector (13) injects into raw water an aggregating agent for aggregating solids in raw water, a first aggregation aid injector (16) injects into raw water with the aggregating agent injected therein an aggregation aid for hardening or consolidating flocs formed by the aggregating agent, and a centrifugal separator (18) has a flocculator portion for causing raw water with the aggregation aid injected therein to whirl therein to flocculate solids in raw water, and a solid collector portion for causing raw water to swirl at higher speeds than in the flocculator portion to separate flocs from raw water.

Abstract: An aggregating agent injector (12) employs water currents generated by a raw water pump (10) to have flowing raw water undergo injection of an aggregating agent for aggregation of solids in raw water to form flocs, a first stirrer (13) works, as raw water inflows with the aggregating agent injected therein, for use of water currents thereof to stir inflowing raw water, and cause to outflow, a flocculation vessel (14) works, as stirred raw water inflows, to have inflowing raw water reside therein to form flocs, and cause to outflow, by using water currents thereof, and a centrifugal separator (15) works, as raw water inflows with flocs therein, for use of water currents thereof to have inflowing raw water swirl, effecting centrifugal separation thereof into flocs as solids and processed water.

Abstract: A component mounting apparatus 1 for mounting a semiconductor chip 6a picked from a component feeding stage 3 to a substrate 7 is configured so as to have a second head 12 for subjecting the substrate 7 or the semiconductor chip 6a loaded on the substrate 7 by a first head 11 to predetermined operation in addition to having the first head 11 equipped with a loading unit 19 that loads the semiconductor chip 6a on the substrate 7. The second head 12 is configured in such a way that the second head 12 can selectively be equipped with, in addition to a coating unit 20 for squiring paste for component bonding purpose from a coating nozzle, a work unit having at least one of a paste transfer function for transferring paste by means of a transfer tool, to thus supply paste to the substrate and a heating-press function for pressing the component loaded on the substrate against the substrate while heating the component.

Abstract: A part mounting apparatus of the invention comprises: a pickup head having a pickup tool for picking up a part; a pickup head supporting unit for supporting the pickup head; a pickup head supporting arm having one end portion where the pickup head is disposed and an other end portion rotatably mounted to the pickup head supporting unit; a pickup head inverting unit for vertically inverting the pickup head with respect to the pickup head supporting unit; and a pickup tool rotating unit for rotating the pickup tool about a rotational axis of the pickup tool, wherein the pickup tool rotating unit includes driving force generating unit and driving force transmitting unit for transmitting a driving force of the driving force generating unit as a rotational force of the pickup tool, and the driving force generating unit is disposed on the pickup head supporting unit.

Abstract: In a construction in which the intermediate stage 5 is interposed between the substrate positioning stage 4 and the electronic component supply stage 3; and in which it is possible to select either a mode of the bonding head 10A transferring to the substrate positioning stage 4 the electronic component P taken out of the electronic component supply stage 3 by the pickup head 6 and mounted on the intermediate stage 5 or a mode for transporting the electronic components, which has been taken directly out of the electronic component supply stage 3, to the substrate positioning stage 4 by means of the bonding head 10A, the pickup head moving mechanism 7 for moving the pickup head 6 is coupled in a suspended manner to the lower surface of the beam member 8b of the gantry 8 positioned at the end of the base 2, and a space S that allows entry of a portion of the electronic component supply stage 3 is assured at a position beneath the pickup head moving mechanism 7.

Abstract: A non-contact ID tag writing apparatus capable of applying high-speed writing to a non-contact ID tag is realized. With a plurality of antennas (221 to 223) arranged along the direction in which tags (11) are transported, one antenna applies writing to one of the tags while the tags pass through the coverage area of the antenna. The antennas apply the writing to the respective tags different from one another, whereby the writing can be applied to all the tags in a row.

Abstract: An electronic component placement machine and an electronic component placement method are disclosed. A takeout and transfer head, provided on rotary chip takeout and transfer mechanism, removes a chip from a feeder and flips it. A placement head receives the flipped chip and places it onto a board. An image of the chip at a pre-centering recognition position is captured during a takeout and transfer operation, during which the takeout and transfer head transfers the chip to the placement head at a receiving position, so as to recognize the position. Based on this positional recognition result, the chip and the placement head are positioned by controlling a placement head driving mechanism. Moreover, the takeout and transfer head is rotated to a position which does not hinder image capturing of the electronic component for placement positioning.

Abstract: An electronic component placement machine and an electronic component placement method are disclosed. A takeout and transfer head, provided on rotary chip takeout and transfer mechanism, removes a chip from a feeder and flips it. A placement head receives the flipped chip and places it onto a board. An image of the chip at a pre-centering recognition position is captured during a takeout and transfer operation, during which the takeout and transfer head transfers the chip to the placement head at a receiving position, so as to recognize the position. Based on this positional recognition result, the chip and the placement head are positioned by controlling a placement head driving mechanism. Moreover, the takeout and transfer head is rotated to a position which does not hinder image capturing of the electronic component for placement positioning.

Abstract: An electronic component placement machine and an electronic component placement method are disclosed. A takeout and transfer head, provided on rotary chip takeout and transfer mechanism, removes a chip from a feeder and flips it. A placement head receives the flipped chip and places it onto a board. An image of the chip at a pre-centering recognition position is captured during a takeout and transfer operation, during which the takeout and transfer head transfers the chip to the placement head at a receiving position, so as to recognize the position. Based on this positional recognition result, the chip and the placement head are positioned by controlling a placement head driving mechanism. Moreover, the takeout and transfer head is rotated to a position which does not hinder image capturing of the electronic component for placement positioning.

Abstract: An electronic component placement machine and an electronic component placement method are disclosed. A takeout and transfer head, provided on rotary chip takeout and transfer mechanism, removes a chip from a feeder and flips it. A placement head receives the flipped chip and places it onto a board. An image of the chip at a pre-centering recognition position is captured during a takeout and transfer operation, during which the takeout and transfer head transfers the chip to the placement head at a receiving position, so as to recognize the position. Based on this positional recognition result, the chip and the placement head are positioned by controlling a placement head driving mechanism. Moreover, the takeout and transfer head is rotated to a position which does not hinder image capturing of the electronic component for placement positioning.

Abstract: The present invention relates to a method of producing transformed cells of barley by suspending, in a suspension medium containing 200-1000 mg/l acetosyringone, a microorganism belonging to the genus Agrobacterium containing a foreign gene; and culturing, in a co-culture medium containing about 1000 mg/l acetosyringone, the microorganism belonging to the genus Agrobacterium and barley callus cells; separating the cultured barley cells from the co-culture medium; and placing the separated barley cells on a selective medium to select the transformed cells into which the foreign gene has been introduced.

Abstract: The particulates, etc. deposited on the trap are burnt in such a manner that the trap is heated so that the temperature of the trap does not exceed 500° C. or the maximum temperature gradient in radial direction of the trap is 20° C./mm or less, preferably 10° C./mm or less.

Abstract: A toner supply bias voltage that is a vibrating voltage comprising an a.c. voltage and a d.c. voltage is applied to a toner supply roller. The d.c. voltage of toner supply bias voltage is changed in dependence upon a variation in the value of developing bias voltage. The lowering in the density at the leading end part of an image, the lowering in the density at the trailing end part of an image, and the uneven developing can be eliminated by satisfying the relationships100.ltoreq..vertline.VB.vertline..ltoreq..vertline.VSR.vertline.,2(.vertline.VSR-VB.vertline.+50).ltoreq..vertline.VPP.vertline..ltoreq.2.ve rtline.VSR.vertline. andf.gtoreq.v/lare satisfied, where VB is a developing bias voltage (unit: Volt), VSR is a d.c. voltage of the toner supply bias voltage (unit: Volt), VPP is a peak-to-peak value of the a.c.

Abstract: A developing apparatus includes a developing roller having a surface on which a layer of a non-magnetic single component developing agent (toner) is adapted to be formed, a toner supply roller held in contact with the developing roller so as to electrify the toner and also to supply the toner to the developing roller, and a toner regulating blade for regulating the toner on the developing roller so as to form a film of the toner thereon. The toner regulating blade is formed into a generally L-shape, and with a simple construction, the thickness of the toner layer, formed on the developing roller, can be stabilized, and also a torque of the developing roller can be reduced, and the degradation of a printed image is suppressed, thereby stabilizing the printed image.

Abstract: A nonmagnetic single component developing device comprises a developing roller having an outer surface on which a layer of a nonmagnetic single component developer composed of nonmagnetic toner is formed, a toner supply roller arranged in rear of the developing roller and made into contact therewith, for agitating and supplying the toner, a toner regulating blade arranged above the developing roller and made into press-contact therewith, for regulating a volume of the toner. The toner supply roller is electroconductive, and is applied thereto with an a.c. voltage so as to prevent lowering of the density in the leading and trailing end parts of an image so as to obtain a uniform image characteristic.

Abstract: A developing apparatus has a toner reservoir for holding a non-magnetic toner, a toner supply roller including a supply surface for receiving the toner from the toner reservoir and electrifying the toner thereon, an electrostatic latent image carrier including a curved or flat latent image surface on which a latent image formed by an electrostatic voltage distribution thereon is developed by the toner transferred from the supply surface, and a toner seal surface arranged adjacent to the toner supply roller to contact a remaining part of the toner on the supply surface after the latent image development so that the remaining part of the toner is taken into the toner reservoir. The respective frictional coefficients between the toner seal surface and the toner and between the toner particles are selected to prevent a disturbance of toner condition between the toner and the toner seal surface.