Abstract: Liquid-keeping part is formed in channel 107 of chip 111 for electrophoresis. Electrophoresis is carded out by using electrophoresis chamber 118 holding chip 111 for electrophoresis in its inside and having a system of controlling temperature of electrophoretic chip 111 by putting humidity-controlling liquid 117.

Abstract: A coating of an encapsulated electrophoretic medium is formed on a substrate (106) by dispersing in a fluid (104) a plurality of electrophoretic capsules (102), contacting at least a portion of a substrate (106) with the fluid (104); and applying a potential difference between at least a part of the portion of the substrate (106) contacting the fluid (104) and a counter-electrode (110) in electrical contact with the fluid (104), thereby causing capsules (102) to be deposited upon at least part of the portion of the substrate (106) contacting the fluid (102). Patterned coatings of capsules containing different colors may be deposited in registration with electrodes using multiple capsule deposition steps. Alternatively, patterned coatings of capsules may be formed by applying a fluid form of an electrophoretic medium to a substrate, and applying a temporally varying voltage between an electrode and the substrate. The process may be repeated to allow for deposition of full color displays.

Abstract: The present device is a microchannel separator that uses a separation driving force created by an electric field. An ionic fluid flows through the microchannels and is subjected to an electric field by two spaced apart parallel electrodes possessing an electric charge. The ions in the ionic fluid are attracted towards the charged electrodes and thus are concentrated in the region of flow near the charged electrodes and depleted from the central region of flow between the charged electrodes. The charged electrodes are insulated from the ionic fluid by an impermeable barrier which prevents arcing and adherence of the ions to the charged electrodes. After a sufficient length of passage of the ionic fluid through a main channel two blocking plates separate the flow into a central and two outer output channels. The central channel draws a portion of the ionic fluid from the central region of the main channel that has fewer ions than the ionic fluid in the regions near the charged electrodes.

Abstract: A liquid treatment apparatus includes a cathode chamber (4) having a cathode (7), an anode chamber (1) having an anode (6), a deionization chamber (2) disposed between the cathode chamber (4) and the anode chamber (1), and a neutralization chamber (3) disposed between the cathode chamber (4) and the anode chamber (1). The deionization chamber is configured to selectively remove cations or anions from a water to be treated and receive ions having the same charge as the selectively removed ions from the cathode chamber (4) or the anode chamber (1). The neutralization chamber is configured to receive the removed ions and electrically neutralize the removed ions by ions supplied from the anode chamber (1) or the cathode chamber (4). An ion exchange membrane is provided to partition the deionization chamber and the neutralization chamber.

Abstract: A method of fabricating a semiconductor device of the invention includes a plating process of filling a plurality of recesses provided to an insulating film formed on a substrate with an electro-conductive material, wherein the plating process includes a process step (S104) of performing the plating with a first current density which was obtained by correcting a predetermined first reference current density based on ratio of surface area Sr?S1/S2 of a first surface area S1 over the entire surface of the substrate which includes the area of side walls of the plurality of recesses over the entire surface of the semiconductor substrate, and a second surface area S2 over the entire surface of the substrate which does not include the area of side walls of the plurality of recesses, when fine recesses not larger than a predetermined width, out of all of the plurality of recesses, are filled with the electro-conductive material.

Abstract: The present invention includes methods and apparatus therefrom for preparing thin films of doped semiconductors for radiation detector and photovoltaic applications, and particularly method and apparatus that increase dopants of alkali metals in Group IBIIIAVIA layers. In a particular aspect, the present invention includes a method of preparing a doped Group IBIIIAVIA absorber layer for a solar cell, with the absorber layer being formed by reaction, with a Group VIA material, of a metallic stack with a plurality of layers, in which each layer contains a concentration of an alkali metal selected from the group of Na, K and Li.

Abstract: The invention relates to a metal membrane filter (1) and to a method and apparatus for the production thereof. The metal membrane filter (1) has rectilinear, cylindrical filter pores (2), which are arranged statistically distributed on the metal membrane filter surface (3) in a density of from a single filter pore (2) per cm2 up to 107 filter pores (2) per cm2. The average diameter of the filter pores (2) is uniform for all filter pores (2) and is from a few tens of nm up to several micrometres. The metal membrane filter (1) comprises a metal electro-deposited with rectilinear, cylindrical filter pores (2) or a correspondingly electro-deposited metal alloy.

Abstract: Syngas components hydrogen and carbon monoxide may be formed by the decomposition of carbon dioxide and water or steam by a solid-oxide electrolysis cell to form carbon monoxide and hydrogen, a portion of which may be reacted with carbon dioxide to form carbon monoxide. One or more of the components for the process, such as steam, energy, or electricity, may be provided using a nuclear power source.

Abstract: A device is disclosed for electrically controlled transport of ions between a source and a target electrolyte, including a source electrode and a target electrode. The electrodes are each capable of conducting ions, and the source electrode is arranged to receive ions from the source electrolyte and the target electrode is arranged to release ions to the target electrolyte. The device further includes an ion-conductive channel, arranged to receive ions from the source electrode and to release ions to the target electrode. Moreover, the ion-conductive channel is arranged to provide an ionic connection between the source and the target electrodes. The electrodes and the ion-conductive channel are formed of solid or semi-solid materials which are directly or indirectly attached to a support.

Abstract: The present invention relates to a process for cathodic protection of electrode or electrode materials wherein negative bias is applied on the electrode. the negative bias is obtained by asymmetric current pulse. The asymmetric current pulse is obtained by performing negative phase with higher amplitude. The asymmetric current pulse is obtained by performing negative phase with wider pulse width than that of the anodic phase. The asymmetric current pulse is obtained by performing negative phase with higher amplitude and with wider pulse width than that of the anodic phase. The present invention further relates to a process for cathodic protection of electrode or electrode materials, wherein negative bias is applied on the electrode, wherein the negative bias is obtained by asymmetric current pulse, wherein the asymmetric current pulse is obtained by performing negative phase with wider pulse width than that of the anodic phase. The wider pulse width is obtained by pulse trains.

Abstract: An electrode for high overvoltage oxygen anodic evolution is described comprising a substrate of titanium or other valve metal, a first protective interlayer containing valve metal oxides, a second interlayer containing platinum or other noble metal, and an outer layer comprising tin, copper and antimony oxides. The electrode of the invention may be employed as anode in waste water treatment.

Abstract: The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation. In accordance with one aspect of the process, at least a portion of the residue from the pressure leaching operation is directed to a heap, stockpile or other leaching operation.

Abstract: A data storage device for use in combination with at least one collectable object is described. The data storage device is formed detached from the collectable object. The collectable object is provided with tamper resistant visual markings. And, the data storage device is provided with tamper resistant visual markings associative with the visual markings of the collectable object so as to provide association of the data storage device with the collectable object. The data storage device is compatible with a standard computer system to provide a user with at least one predetermined characteristic of the collectable object with or without an external database.

Abstract: A collectable display panel and data storage device is described. The invention involves at least one display panel that is formed for housing and displaying at least one collectable object, such as a coin. The display panel has associative visual markings for one or more collectable objects. A data storage device has associative visual markings with at least one display panel, and comprises data related to one or more collectable objects that are housed in the display panel. The data storage device is stored in the display panel, and is compatible with a standard computer system. Thus, it is connectable, directly or indirectly to a computer system or equivalent system by wired or wireless means. In one embodiment of the present invention, the collectable object is a coin.

Abstract: A packaging for an ophthalmic lens containing a pharmaceutical agent.

Abstract: The present invention is directed to sterile packaging for medical devices or components where the medical device or component (e.g., a stent) is protected, at least in part with a sheath or the like configured to maintain a protective fluid about a portion of the device or component. The sheath preferably has one or more ports to add fluid to or withdraw fluid from the interior of the protective sheath.

Abstract: Arrangement and packaging for pre-filled cocktail glasses of the type which includes a stem base, a stem connected at a first end to the stem base, and a bowl portion connected to a second end of the stem and being constructed to hold a cocktail. The bowl portion has an open mouth defined by a rim from which a person drinks the cocktail. The pre-filled cocktail glass further includes a removable seal member that extends across the bowl portion and is attached to the rim to sealingly contain the liquid within the bowl portion, and a cover that is removably coupled to the rim. The cover has a recessed platform for receiving a stem base of another cocktail glass to permit stacking of two cocktail glasses. The recessed platform has a floor that can be spaced from the seal member, and the cover can be constructed such that the floor remains spaced from the seal member when a load equal to the weight of another pre-filled cocktail glass is received in the recessed platform and supported by the floor thereof.

Abstract: Arrangements and packaging for pre-filled cocktail glasses of the type which include a stem base, a stem connected at a first end to the stem base, and a bowl portion connected to a second end of the stem and being constructed to hold a cocktail. The bowl portion has an open mouth defined by a rim from which a person drinks the cocktail. The cocktail glass has a removable seal member that extends across the bowl portion and is attached to the rim. The attachment between the seal member and the rim is defined by a bond strength. The bond strength is sufficient to form a seal with the rim to sealingly contain the liquid within the bowl portion but is insufficient to cause formation of a fracture between the stem and bowl portion upon removal of the seal member from the rim.

Abstract: A drink mix system is provided for mixing one or more additives with liquid in a container. An additive holder is provided having an end wall that attaches to the end wall of a standard screw-off bottle cap. Inner and outer walls define one or more additive holding spaces that are sealed off from the liquid with one or more removable seals. Additive holding spaces may be in the form of concentric cylindrical holding spaces, wedge-shaped holding spaces, or stacked holding spaces. Additives may comprise vitamins, flavorings or colorings, and may be in a liquid, powder, solid or gel form. When desired, a user removes the seal(s) and selectively mixes one or more additives with the liquid in the bottle. This results in an inexpensive drink mix system that can utilize standard bottle caps and allows a user to selectively flavor a beverage.

Abstract: A booklet including a first page having a first height; a second page connected to the first page and having a second height less than the first height; and a spine defining a line around which the second page can be rotated, wherein the first height is such that the booklet can be disposed with respect to a disc case cover having a cover face, a cover tab having a first surface facing the cover face, a first cover edge, and a second cover edge opposite the first cover edge, the distance between the cover edges being substantially equal to the first height, so as to have its first page lie substantially flat between the cover face and the first surface and its second page capable of rotating around the line while remaining substantially flat and without the second page contacting the cover tab.

Abstract: A protection, authentication, identification device for a collectable object is described. The device comprises a holder formed for assembly with at least one collectable object to provide protection and preservation of said collectable object. The holder is further formed to resist disassembly and separation with the collectable object, once it is assembled. The protection, authentication, identification device also comprises a data storage device which comprises data of at least one stored digital image of the collectable object. The data storage device is nondetachably secured to the protection, authentication, identification device. And, the data storage device is compatible with a standard computer system for display and inspection of the digital image of the collectable object by a user to aid the user in the authentication of the collectable object. In some embodiments, for example, the collectable object is a coin.

Abstract: A personal care product has a plurality of individually wrapped articles and a reclosable package for containing the articles. The package includes a handle portion at an upper end of the package for grasping the package, a back side extending downward toward a lower end, a cover extending downward toward a lower end, and a pocket formed at the lower end of the package and configured to retain the plurality of individually wrapped articles. A lower end of the cover is removably insertable into the pocket to close and reclose the package after an article has been removed from the pocket.

Abstract: A smoking accessory including a caddy for holding a lighter and a package containing a smoking article, for instance a disposable lighter, and a package containing a smoking article, for instance a package of cigarettes. The caddy includes an aperture that is sized and configured to receive the formed in the body, the package-receiving aperture adapted to receive the package containing a smoking article. The smoking accessory includes a clip which is removably attachable to a structure or relatively stable article.

Abstract: A single sheet of non-woven material is provided with sufficient strength and durability to store two compact discs without the necessity of laminating or otherwise interconnecting the non-woven sheet to a backing sheet or other materials for strength. The single sheet of non-woven material is positioned between the playing surfaces of the two compact discs to provide a non-scratching, protective surface and to reduce the costs associated with manufacturing the sleeves used to store the CDS.

Abstract: The invention comprises a portable weight set storage system and weight set kit. The weight set storage system comprises a portable and compact case that also functions as a display rack for the weight sets. The weight set can be stored in the lid portion and/or the bottom portion of the case. The case comprises identical lid and bottom halves each of which have vertical slots in their inner surfaces. These vertical slots are designed to hold adjustable weight discs in an upright or vertical position when the case is resting in a horizontal plane. The weight set storage system also comprises indentations for storing dumbbell bars and barbell bars. These indentations are smaller than the actual bar, hence the bar has to be forced or snap-locked into the indentation, thus securing the bar. When the case is in a closed position, the lid vertical slots overlap with the bottom vertical slots to form a compact enclosure that securely holds the discs in place.

Abstract: A golf bag and travel system for providing a multi-component, modular golf bag that enables golf clubs to be carried therein. The system includes a rigid inner body core and a plurality of modular, interchangeable, soft outer body members. The rigid inner body core includes a rigid top loop region, a rigid central loop region, a rigid bottom end, and a rigid belly region that connects the top loop region, the central loop region, and the bottom end. Each soft outer body member is selectively attachable to the top loop region, bottom end, and belly region of the inner body core, since each soft outer body member is shaped and sized to be selectively attachable to the correspondingly shaped and sized rigid inner body core. A cross-sectional area of the central loop region is smaller than a cross-sectional area of the top loop region, and a cross-sectional area of the central loop region is smaller than a cross-sectional area of the bottom end.

Abstract: An apparatus to record a user's reaction on a recordable medium. The apparatus includes a container having a top portion hingedly fixed to a bottom portion. An interior section of the container houses a recording device in communication with the bottom portion. At such time as the top portion and bottom portion are separated beyond a defined distance, the recording device becomes activated to record still image, audio, and/or video of a person within range of the recording device.

Abstract: A bucket and cord combination comprising a cylindrical bucket having a predetermined diameter and height for storing an elongated flexible cord therein between an inner cylindrical surface of the bucket and an outer curved surface of an axial insert received in the bucket and forming therewith an annular space for the storage of the cord, the insert having a vertical height equal to or less than the height of the bucket and having a diameter less than the diameter of the bucket, the bucket having a substantially flat circular bottom with a hole therein whose diameter is less than the diameter of the bucket, the bottom of the insert being provided with a flat shoulder extending horizontally outward from the periphery of the insert to the inner periphery of the bucket and spaced from the bottom of the bucket so as to form therewith a doughnut shaped space for storage therein of one terminal end of the cord, the other end of the cord extending from the lower terminal end thereof through a hole in the flat horizo

Abstract: A corrugated bulk container for shipping, storing and dispensing liquids and semi-liquid fluids. The container is a laminated triple wall open-ended tube having side walls and end walls, and a bag assembly is supported in the tube for containing the liquid or semi-liquid fluid. The bag assembly includes a bag having a fill valve and a dispensing valve attached to it, a bag cassette to which a bottom end of the bag is attached, and a fill valve support plate to which a top end of the bag is attached. The bag cassette has structure to receive and hold the dispensing valve in position relative to a dispensing valve opening in the tube, and the fill valve support plate has structure to receive and support the fill valve. The container is attached to a pallet by severable structure, and the fill valve support plate is attached to the tube by severable structure so that the bag assembly can be removed from the container, for easy collapse of the container for disposal or recycling.

Abstract: The present invention relates to a packaging concept includes a tubular wall member and end caps. The packaging is constructed from a sheet of flexible material wrapped into a continuous wall and fastened at the ends of the sheet material leaving open tube ends. The open ends of the tube are then closed by an end cap. The end caps are each formed from a continuous blank of sheet material. The blank includes at least three aligned cap layers. The first and second cap layers are adjacent to each other and connected by a tab connector. Each of the first and second cap layers also includes a plurality of bendable support tabs and each of the first and second cap layers includes a plurality of spaces between adjacent respective bendable support tabs. The first cap layer is folded relative to the second cap layer such that the support tabs of the first cap layer enter the spaces of the second cap layer and the support tabs of the second cap layer enter the spaces of the first cap layer.

Abstract: A disk holding device for packaging hard drive disks includes a base and a cover. The base includes a central portion and at least one locking surface near an end of the base. The cover includes a latch arm near one end of the cover. The latch arm has a locking tab that transversely protrudes from the latch arm in a direction from the central portion of the base toward the end of the base. A space extends between the cover and the base for receiving a cassette portion when the locking tab is received against the at least one locking surface.

Abstract: An at least partially flexible sealed package having an opening assembly, said opening assembly further comprising a sliding component and a lifetime indicator; the movement of said sliding component serving to open a seal of said package; the arrangement being such that the movement of said sliding component activates said lifetime indicator due to the relative motion between said sliding component and at least part of said lifetime indicator; such that said lifetime indicator can thereby providing a visual indication of the expiry status of the product within said package from the time of opening onwards.

Abstract: An identification apparatus capable of being selectively coupled with a beverage container having a substantially cylindrical shape and/or a substantially truncated conical shape.

Abstract: A food container preferably for heated food, has a lid member and a base member. The base member has complimentary embossed portions in the bottom of the base member to engage a complimentary indented portion in the top surface of the lid member. The retaining mechanism allows containers to be stacked so as to secure each container while allowing steam to escape from the lid of a container. Also, a fluid return system retains fluid in the container and promotes flow of fluid into the bottom of the container.

Abstract: A pack contains medicinal tablets containing a phenothiazine derivative, prochlorperazine maleate, as active ingredient. The tablets are protected from damage by water. The pack is suitably a water-occlusive blister pack.

Abstract: Disclosed is an improved sealing sheet for use to close a container-defining sheet having a top surface comprising a given number of spaced apart cavities embossed therein, each of the cavities being upwardly opened and thus defining a container that is surrounded by a flange that is part of the top surface of the container-defining sheet. This improved sealing sheet has a top layer with tearing lines punched therein in such a manner and position as to extend from one side of each cover piece that may be splitted from the sealing sheet to cover one of the cavities up to at least the adjacent corners of the bottom piece left on the corresponding cover piece. Such facilitates peeling of the bottom piece and of the corresponding part of the cover piece from the corresponding container to have access to the element(s) stored in it while preventing glue to be left on the flanges that surround the top opening of the container since such flanges are then still covered by non splitted parts of the sealing sheet.

Abstract: A support structure (1) for a medicament comprising a base (2) with at least one cavity (3) for the medicament and a lid (4) for sealing the medicament within the cavity (3). Each moisture permeable region of the structure (6) is protected against the ingress of mositure by a moisture absorbing sink (7) between that region and the ambient air outside the structure (1).

Abstract: A carrier tape for a tape and reel machine includes at least one edge having a plurality of sprocket openings therein. The carrier tape also includes a first row of aperture cavities and a second row of aperture cavities. Electrical components are contained in the first and second row of aperture cavities. In some embodiments, the electrical components carried are the same, and in other embodiments, the electrical components carried in the first row differ from the electrical components carried in the second row.

Abstract: An apparatus (100) and a method (M) for packaging, displaying, and storing an electronic product having a front portion (10) including a complementary contour (11), a back portion (30) including a complementary contour (31), and an inner portion (20) including a complementary contour (21), the inner portion (20) being disposed between the front portion (11) and the back portion (30), and the front portion (10), the back portion (30), and the inner portion (20) being fitted together via their respective complementary contours (11, 31, 21).

Abstract: A cassette storage device is disclosed, which is capable of storing a cassette having a first connector. The cassette storage device comprises: a housing having an opening and a second connector; a tray coupled to the housing and being moveable through the opening; a first shaft positioned between the housing and the tray; a second shaft positioned between the housing and the tray; a driving end coupled to the first shaft and the second shaft; and a releasing switch positioned on the housing and coupled to the first shaft. Therefore, when the first connector of the cassette is going to be ejected from the second connector of the housing, the releasing switch is only required to be pushed slightly, then the first shaft, along with the driving end will subsequently make the second shaft rotate and thus push the cassette out from the cassette storage device.

Abstract: A protection and authentication device for trading collectable objects is described. The device comprises a holder formed for assembly with at least one collectable object to provide protection and preservation of the collectable object. The holder is further formed to resist disassembly and separation with the collectable object, once it is assembled. A protection and authentication device for trading collectable objects also comprises a data storage device comprising data including at least one descriptor that identifies at least in part, at least one collectable object, and further comprises at least one electronic link that can fetch a predetermined external database that stores at least one digital image of at least one collectable object. The digital image may assist a user in the authentication of the collectable object, and may facilitate the ability of a user to trade the collectable object over a network such as the Internet.

Abstract: A catalytic hydrocracking process wherein a liquid phase stream comprising a hydrocarbonaceous feedstock, a liquid phase effluent from a hydrocracking zone, and a sufficiently low hydrogen concentration to maintain a liquid phase continuous system is fed into a hydrotreating zone to produce a first hydrocarbonaceous stream comprising hydrocarbons having a reduced level of sulfur and nitrogen. The resulting hydrocarbons having a reduced level of sulfur and nitrogen are introduced into a hydrocracking zone with a sufficiently low hydrogen concentration to maintain a liquid phase continuous system to produce a hydrocracking zone effluent which provides lower boiling range hydrocarbons.

Abstract: This invention teaches a process that includes extraction of gas in which the presence of foam results in the carry over in the outlet gas stream of excessive liquids and/or solids, including the steps of injecting the foam laden gas stream tangentially into a cyclonic separator having an axial gas outlet and a liquid outlet, under conditions in which the inlet stream is subjected to at least about 150 G's, the outlet gas being substantially liquids/solids free and the outlet liquid stream being conveyed for disposal or further processing.

Abstract: The apparatus for separating residues from a thermal waste treatment into one fine fraction and one coarse fraction comprises a housing (1) abutting on swinging elements (2), said housing having a plurality of diagonally offset plates (3.1-3.5) that are disposed one beneath the other and are connected to said housing (1) by their side edges, and being equipped with means (5) for generating a vibration component oriented in the direction of the plates (3.1-3.5) disposed diagonally offset downward. The apparatus further comprises one suction line (6) as well as an inlet opening for a gas that may be passed between the plates for wind sieving. Residues or slag from a waste treatment plant or an incineration plant are supplied to this apparatus in order to separate them into at least one fine fraction and one coarse fraction.

Abstract: A portable screening trommel having a chassis, at least one wheel assembly at a rear portion of the chassis, a hopper for receiving a material, a rotary trommel being chain driven at a discharge end and which receives the material from a feed conveyor beneath the hopper, a first product conveyor extending from a rearward end of the chassis to a forward end and feeding a rotatable stacking conveyor, and a second product conveyor receiving material from within the trommel and being rotatable between an operating position and a traveling position. The stacking conveyor is positioned at the forward end of the chassis and is rotatable between a first operating position and a second traveling position.

Abstract: A method and apparatus for separating fine particulate matter from debris and bulk material is presented which includes a frame, a screen connected to the frame that is adjustable in height relative to the frame at one of its ends, a removable trough positioned near the back end of the frame, and a motor for vibrating the frame to assist in separation of materials.

Abstract: A gravity mineral recovery apparatus and process uses stratification to separate the relatively heavier valuable particulates from the lighter tailings in ore. A housing holds a process chamber therein, the chamber capable of oscillating within the housing. Ore is gravity fed into the process chamber and falls toward the bottom with the ore channeled to the outer sidewall of the process chamber by a deflector that creates an annular passage within the chamber. The oscillation of the chamber causes the heavier particulate to stratify into circumferentially disposed hoppers while the tailings are discharged through a central chute to a tailings hopper. The hoppers have compound sloped sidewalls and have a sensor for opening a discharge valve within the hopper once a given concentration is achieved. A series of sensors within the tailings hopper control a tailings discharge valve as well as an ore feed valve.

Abstract: A system for handling cut and creased folding carton blanks and delivering the blanks to a collecting conveyor with limited impact includes a lane adjustment section aligning the lanes, an accumulator section forming batches and a slow-down section. The lane adjustment section includes transfer assemblies each having a variable speed motor for individually adjusting the lanes and a pull roll for establishing a uniform speed. The accumulator includes a motorized drum, belts driven by the drum and a deflector moving the blanks into and out of a rotary pathway. The drum may be part of a removable drum module for modifying drum diameter. The slow-down section cyclically adjusts speed to slow each batch. An in-feed assembly provides for receipt of relatively short blanks onto opposite sides of the drum in a double batching mode to form separate batches in each lane.

Abstract: A media separator system includes a first and a second portion of a media separator device, a projection, a handle, at least one of a retention device, and a storage container, wherein the first and second portion of the media separator device, the handle and the at least one of a retention device is sized to be received at least partially in the storage container.

Abstract: A particle separation apparatus includes a base, a disc-shaped container rotatable on the base at a constant speed and a suspension supply tank for separating in the container particles contained in a suspension supplied from the tank according to specific gravities or particle diameters of the particles. The container includes a plurality of centrifugation vessels disposed around a rotation axis and in a circumferential direction of the container, particle supply cylinders disposed at a center of the container for discharging the particles in the suspension toward the vessels and a lid, and has a structure controllable in rotational speed to adjust a distance of relative movement in a rotation direction between large-gravity particles and small-gravity particles. The vessels are individually in a form of dents independent of one another and are each formed of an inner circumferential wall and a bottom wall.