Patent application number | Description | Published |
20100196788 | METHOD FOR PRODUCING METAL-SUPPORTED CARBON, METHOD FOR PRODUCING CRYSTALS CONSISTING OF FULLERENE MOLECULES AND FULLERENE NANOWHISKER/NANOFIBER NANOTUBES, AND APPARATUS FOR PRODUCING THE SAME - The present invention provides a method for producing metal-supported carbon, which includes supporting metal microparticles on the surface of carbon black, by a liquid-phase reduction method, in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, as well as a method for producing crystals comprising fullerene molecules and fullerene nanowhisker/nanofiber nanotubes, which includes uniformly stirring and mixing a solution containing a first solvent having fullerene dissolved therein, and a second solvent in which fullerene is less soluble than in the first solvent, in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other. | 08-05-2010 |
20100202960 | TITANIUM DIOXIDE SUPERFINE PARTICLES AND METHOD FOR PRODUCING THE SAME - It is an object to provide a method for producing titanium dioxide superfine particles, which produces monodispersed titanium dioxide superfine particles depending on its purpose, causes no clogging with a product due to self-dischargeability, requires no great pressure, and is excellent in productivity. In the method for producing titanium dioxide superfine particles in a fluid containing a titanium compound by separation, the fluid is formed into a thin film fluid between two processing surfaces arranged so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, and the titanium dioxide superfine particles are separated in the thin film fluid. | 08-12-2010 |
20100215958 | METHOD FOR PRODUCING MICROPARTICLES AND THE MICROPARTICLES - It is an object of the present invention to provide a method for producing microparticles, which can produce monodispersed microparticles, causes no clogging with a product due to self-dischargeability, requires no great pressure, and is excellent in productivity, wherein a fluid in which at least one kind of microparticle materials is dissolved is introduced between two processing surfaces arranged to be opposite to each other to be able to approach to and separate from each other, at least one of which rotates relative to the other, to be formed into a thin film fluid, and the thin film fluid is cooled or heated (warmed) to allow saturation solubility to change, thereby separating microparticles. | 08-26-2010 |
20100243947 | METHOD FOR PRODUCING MAGNETIC MICROPARTICLES, MAGNETIC MICROPATICLES OBTAINED THEREFROM, MAGNETIC FLUID, AND METHOD FOR PRODUCING MAGNETIC PRODUCT - It is an object to provide a method for producing magnetic microparticles, which produces monodispersed magnetic microparticles, causes no clogging with a product due to self-dischargeability, requires no great pressure, and is excellent in productivity. In the method for producing magnetic microparticles, at least two fluids are used, and at least one kind of the fluids is a fluid containing at least one kind of magnetic raw material, and at least one kind of the fluids other than the above fluid is a fluid containing at least one kind of a magnetic microparticles-separating agent, and the respective fluids join together in a thin film fluid formed between two processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, whereby magnetic microparticles are separated in the thin film fluid to obtain the magnetic microparticles. | 09-30-2010 |
20100273898 | METHOD FOR PRODUCING EMULSION AND THEREBY OBTAINED EMULSION - An object of the invention is to provide a uniform emulsion that can be produced with a low energy and does not require classification operation; and provided is a method for producing an emulsion, wherein at least a fluid to be processed that forms continuous phase and a fluid to be processed that forms dispersed phase are mixed in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, whereby the emulsion having variation coefficient of 0.3 to 30% in a particle size distribution is obtained. | 10-28-2010 |
20100322997 | METHOD FOR PRODUCING BIOLOGICALLY INGESTIBLE MICROPARTICLES, BIOLOGICALLY INGESTIBLE MICROPARTICLES, AND DISPERSION AND PHARMACEUTICAL COMPOSITION CONTAINING THE SAME - A method of separating biologically ingestible microparticles is used to obtain biologically ingestible microparticles in a thin film fluid formed between two processing surfaces provided with a solution containing a first solvent in which an objective substance to be pulverized is dissolved and a solvent capable of serving as a second solvent in which the solubility of the microparticles is lower than in the first solvent, the two processing surfaces being arranged so as to be able to approach to and separate from each other, at least one of which rotates relative to the other. | 12-23-2010 |
20100330153 | METHOD FOR PRODUCING BIOLOGICALLY INGESTIBLE MATERIAL AND BIOLOGICALLY INGESTIBLE MATERIAL OBTAINED THEREFROM - The present invention provides a production method for obtaining a biologically ingestible material having an intended diameter with low energy as compared with conventional methods, the method includes mixing a fluid to be processed in a dispersed phase containing a pharmacologically active substance and a fluid to be processed in a continuous phase including at least a disperse solvent, while each of the fluids are retained in an independent state, in a thin film fluid formed between two processing surfaces arranged to be opposite to each other to be able to approach to and separate from each other, at least one of which rotates relative to the other, through independent pathways corresponding to the respective phases, whereby the components contained in the fluid to be processed in a dispersed phase are formed into microparticles having a desired diameter. | 12-30-2010 |
20120283447 | METHOD FOR PRODUCING NANOPARTICLES - Provided is a method for producing a nanoparticle. Provided especially is, in the method for producing a nanoparticle to separate a diketopyrrolopyrrole pigment, a method for separating an α-type diketopyrrolopyrrole pigment nanoparticle having high crystallinity by carrying out separation of the diketopyrrolopyrrole pigment and crystal type transformation to the α-type with substantially a single step. The α-type diketopyrrolopyrrole pigment nanoparticle is separated by mixing a diketopyrrolopyrrole pigment solution having the diketopyrrolopyrrole pigment dissolved in a solvent and an alcohol solvent containing an alcohol compound solvent in a thin film fluid formed between at least two processing surfaces | 11-08-2012 |
20120312398 | FLUID PROCESSING APPARATUS AND PROCESSING METHOD - A fluid processing apparatus for processing a material to be processed between processing surfaces of processing members capable of approaching to and separating from each other, so as to rotate relative to each other, introduces a first fluid between the processing surfaces, introduces a second fluid between the processing surfaces from another flow path independent of the first fluid, and mixes and stirs the first and second fluids between the processing surfaces to undergo treatment. A processing member is composed by assembling a plurality of divided components of the processing member. An opening and a flow path are formed in the space between the plurality of components. This eliminates the need to create all ring-shaped disks which are the processing member as one block, and also eliminates the need to substantially process the flow path leading to the opening, thereby making it possible to easily undergo decomposition and cleaning. | 12-13-2012 |
20130008514 | FLUID PROCESSING APPARATUS AND PROCESSING METHOD - A device enables the more stable performance of uniform treatment such as reaction by reducing pulsation generated in a fluid introduced between treatment surfaces using a micropump effect. The device treats an object between treatment surfaces. The treatment is performed by introducing a fluid between the treatment surfaces using a micropump effect. The micropump effect generates force in the direction in which the treatment surfaces move away from each other by the rotation of a treatment part and the recessed section formed in the treatment surface to thereby produce the effect of introducing the fluid between the treatment surfaces. The recessed section is formed so as to extend in the circumferential direction and inward/outward direction of the treatment surface, and multiple recessed sections are provided or an additional recessed section (a) different from the recessed sections is formed in at least one of the treatment surfaces. | 01-10-2013 |
20130034490 | METHOD FOR PRODUCING SUBSTANCES TO BE SEPARATED HAVING CONTROLLED AMOUNTS OF DOPANT ELEMENT - A method is provided for producing separated substances, particularly metal compounds, the dopant element amounts of which have been controlled by the use of an apparatus that processes fluid between the processing surfaces of a processing member that can be made to approach/separate and which rotate relative to each other. The substance to be separated is separated by mixing a raw material solution, wherein the substance to be separated is solubilized in a solvent, with the solvent for separation and with the dopant element or dopant element-containing substance solubilized in at least one solvent selected from the solvent of said raw material solution, said solvent for separation or a solvent other than that of said raw material solution or said solution for separation. Separated substances with controlled dopant element amounts are obtained by controlling the solubility of the dopant element or dopant element-containing substance in the solvent for separation. | 02-07-2013 |
20130071664 | NOVEL COPPER PHTHALOCYANINE PIGMENT AND METHOD FOR PRODUCING COPPER PHTHALOCYANINE MICROPARTICLES - Disclosed are: copper phthalocyanine pigments which each contain at least one kind of copper phthalocyanine microparticles that has high spectral characteristics and that is in a crystal form other than α-form; and processes for the production of the copper phthalocyanine microparticles. Provided are: a copper phthalocyanine pigment which contains at least one kind of copper phthalocyanine microparticles that is in a crystal form other than α-form and that exhibits, in a region of 380 nm to 780 nm, an absorption spectrum shape extremely similar to that of α-form copper phthalocyanine microparticles; and a process for the production of the copper phthalocyanine microparticles. Also provided are: a copper phthalocyanine pigment which contains at least one kind of copper phthalocyanine microparticles that is in a crystal form other than α- or ε-form and that exhibits a wavelength (λmax) of shorter than 478 nm in the transmission spectrum in a region of 380 nm to 780 nm, said wavelength (λmax) being a wavelength at which the maximum transmittance appears; and a process for the production of the copper phthalocyanine microparticles. | 03-21-2013 |
20130078467 | NOVEL QUINACRIDONE PIGMENT COMPOSITION, AND METHOD FOR PRODUCING QUINACRIDONE MICROPARTICLES - A quinacridone pigment composition contains quinacridone microparticles which have durability and spectral characteristics equivalent to those required for a magenta color of a dye. The quinacridone pigment composition contains at least one type of quinacridone microparticles, wherein a difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the difference between the maximum and minimum transmittance is 30% or more in a transmission spectrum at 350 nm to 580 nm, or the difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the wavelength (λmax) at which the transmittance in a transmission spectrum at 350 nm to 500 nm becomes maximum is less than 430 nm. A method is provided for producing the quinacridone microparticles. | 03-28-2013 |
20130095322 | NOVEL YELLOW PIGMENT COMPOSITION, AND METHOD FOR PRODUCING YELLOW PIGMENT MICROPARTICLES - Disclosed are: a yellow pigment composition which contains at least one kind of yellow pigment microparticle having excellent transmission characteristics; and a method for producing the yellow pigment microparticle. Specifically disclosed are: a yellow pigment composition which contains at least one kind of yellow pigment microparticle that are characterized in that the difference between the maximum transmittance (Tmax) and the minimum transmittance (Tmin), namely (Tmax−Tmin) is 80% or more in the transmission spectrum at 350-800 nm; and a method for producing the yellow pigment microparticle. | 04-18-2013 |
20130156682 | METHOD FOR PRODUCING ISOLATABLE OXIDE MICROPARTICLES OR HYDROXIDE MICROPARTICLES - A method for producing isolatable oxide microparticles or hydroxide microparticles using an apparatus that processes a fluid between processing surfaces of processing members that are arranged opposite each other so as to be able to approach to or separate from each other and such that at least one can rotate relative to the other. At least two fluids are mixed and oxide microparticles or hydroxide microparticles are separated, said two fluids including: a fluid containing a microparticle raw material solution comprising a microparticle raw material mixed into a solvent, and a fluid containing a microparticle-separation solution. Immediately thereafter, the following are mixed to obtain isolatable oxide microparticles or hydroxide microparticles: a fluid containing the separated oxide microparticles or hydroxide microparticles; and a fluid containing a microparticle-treatment-substance-containing solution that contains a microparticle-treatment substance that adjusts the dispersibility of the separated oxide microparticles or hydroxide microparticles. | 06-20-2013 |
20130220180 | SOLID SOLUTION PIGMENT NANOPARTICLES AND METHOD FOR PRODUCING SOLID SOLUTION PIGMENT NANOPARTICLES HAVING CONTROLLED SOLID SOLUTION RATIO - The problem addressed by the present invention is to provide; solid solution pigment nanoparticles having a homogeneous solid solution ratio; a method for producing solid solution pigment nanoparticles having a homogeneous solid solution ratio in each primary particle; and a method for controlling the solid solution ratio of solid solution pigment nanoparticles. The solid solution pigment nanoparticles are prepared by precipitating at least two types of pigment by mixing a pigment precipitation solvent and; at least one type of pigment solution wherein at least two types of pigment are dissolved in a solvent: or at least two types of pigment solution wherein at least one type of pigment is dissolved in a solvent. The solid solution pigment nanoparticles are wherein the solid solution ratio of the at least two types of pigment in the primary particles of the precipitated solid solution pigment nanoparticles with respect to the ratio of the at least two types of pigment in the pigment solution mixed with the pigment precipitation solvent having a precision within 25%. | 08-29-2013 |
20130274462 | HIGHLY HEAT-RESISTANT PHTHALOCYANINE - The problem addressed by the present invention is to provide a high heat-resistant phthalocyanine. The phthalocyanine is separated by mixing a phthalocyanine separation solvent and a phthalocyanine solution wherein a phthalocyanine starting material is dissolved in a solvent. THe phthalocyanine is wherein having high heat resistance, the decomposition temperature of the separated phthalocyanine being at least 10° C. higher than the decomposition temperature of the phthalocyanine starting material. Also, the phthalocyanine solution may be the result of dissolving at least two types of phthalocyanine starting material in the solvent, the separated phthalocyanine being wherein containing a solid solvent of the at least two types of phthalocyanine starting material and by the decomposition temperature of the separated phthalocyanine being at least 10° C. higher than the decomposition temperature of a mixture of at least two types of phthalocyanine separated by mixing the phthalocyanine separation solvent and each of at least two types of phthalocyanine solution resulting from dissolving each of the at least two types of phthalocyanine starting material in a solvent. | 10-17-2013 |
20130333520 | METHOD FOR PRODUCING METAL MICROPARTICLES - Provided is a producing method for metal microparticles for which the particle diameter is controlled. At least two types of fluids to be processed are used, and at least one of those fluids to be processed is a metallic solution wherein a metal and/or metallic compound is dissolved in a solvent. Of the fluids to be processed other than the above, at least one is a reducing agent fluid that includes a reducing agent. The fluids to be processed are mixed in a thin film fluid created between at least two processing surfaces ( | 12-19-2013 |
20130343979 | HIGHLY EFFICIENT METHOD FOR PRODUCING CERAMIC MICROPARTICLES - Provided is a more suitable method for producing ceramic microparticles. The present invention uses at least two types of fluids to be processed; at least one of the fluids to be processed is a fluid containing a ceramic starting material liquid that mixes and/or dissolves a ceramic starting material in a basic solvent; of the fluids aside from the ceramic starting material liquid, at least one of the fluids to be processed is a fluid containing a solvent for precipitating ceramic microparticles; and ceramic microparticles are precipitated by mixing the fluid containing the ceramic starting material liquid and the fluid containing the solvent for precipitating ceramic microparticles within a thin film fluid formed between at least two surfaces ( | 12-26-2013 |
20140001663 | METHOD FOR PRODUCING MICROPARTICLES | 01-02-2014 |
20140037519 | METHOD FOR PRODUCING OXIDE/HYDROXIDE - Provided is a method for producing an oxide and/or hydroxide wherein the ratio of oxide and hydroxide has been controlled. The method produces an oxide, a hydroxide, or a mixture thereof, and obtains an oxide and/or a hydroxide wherein the ratio of oxide and hydroxide has been controlled by means of changing a specific condition relating to at least one fluid to be processed introduced between processing surfaces ( | 02-06-2014 |
20140048984 | METHOD FOR PRODUCING FINE PARTICLES - The invention addresses the problem of providing a novel method for controlling the particle size of deposited fine particles in a fine particle production method that introduces a fluid to be processed between at least two processing surfaces, which are disposed facing each other, are advancible and retractable, and at least one rotates relative to the other, to deposit fine particles in the thin fluid film which forms between said processing surfaces. A fluid to be processed is introduced between processing surfaces ( | 02-20-2014 |
20140072502 | FINE BUBBLE GENERATING APPARATUS, METHOD FOR GENERATING FINE BUBBLES, AND METHOD FOR GAS-LIQUID REACTION USING SAME - The present invention addresses the problem of: providing an apparatus and method for generating fine bubbles in a plurality of processing surfaces in a plurality of processing members disposed in opposition so as to be capable of being brought together and moved apart, at least one being capable of relative rotation with respect to the other; as well as providing a method for reacting fine bubbles using a method for generating fine bubbles. Provided are: a plurality of processing members disposed in opposition so as to be capable of being brought together and moved apart, at least one being capable of relative rotation with respect to the other; processing surfaces provided in mutually opposed positions in the respective processing members; and at least two independent flow path communicating with the space between the processing surfaces. A gas and a liquid representing a fluid to be processed are introduced into the space between the processing surfaces from the at least two independent flow path, and the fluid is processed. The liquid is introduced from one flow path of at least two independent flow path, and the gas is introduced through the other flow path, whereby bubbles are generated between the processing surfaces. | 03-13-2014 |
20140110336 | FLUID PROCESSING METHOD INCLUDING EXTRACTION - A fluid processing method includes extraction that can extract material to be extracted continuously with high efficiency. A thin film fluid is formed between at least two processing surfaces disposed facing each other so as to be able to approach to and separate from each other such that at least one rotates relative to the other. A fluid processing extracts at least one kind of material to be extracted in at least one kind of the extraction solvent that can extract that material to be extracted. The fluid containing material to be extracted and a fluid for extraction that contains the extraction solvent are mixed in the thin film fluid formed between the processing surfaces, and a fluid processing process extracts the material to be extracted into the extraction solvent. | 04-24-2014 |
20140110884 | METHOD FOR PREVENTING ADHESION OF PROCESSED MATERIAL USING FORCED THIN FILM TREATMENT APPARATUS - Provided is a method for preventing a processed material from adhering to a processing surface constituting a flow path for a fluid to be processed, in a fluid processing method for mixing a fluid to be processed in a thin film fluid formed between at least two oppositely arranged processing surfaces capable of being brought together and moved apart, at least one rotating in a relative manner with respect to the other; and for obtaining a processed material. There are used at least two types of fluids to be processed among a raw material fluid including at least one type of raw material substance, and a fluid for processing the raw material substance; the fluids to be processed are mixed in a thin film fluids formed between at least two oppositely arranged processing surfaces ( | 04-24-2014 |
20140121336 | METHOD FOR INCREASING PRODUCTION VOLUME OF FINE PARTICLES USING FORCED THIN FILM FLUID TREATMENT APPARATUS - The present invention addresses the problem of providing a new method for increasing the production of fine particles. Using at least two types of fluids to be processed, a raw material fluid containing at least one type of fine particle raw material and a fluid for treating the fine particle raw material, fine particles are obtained by mixing the fluids to be processed in a thin film fluid formed between at least two processing surfaces which are disposed to be faced with each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other. At this time, the production of the fine particles is increased by introducing the raw material fluid from the centers of the processing surfaces. | 05-01-2014 |
20140134068 | FLUID PROCESSING APPARATUS AND PROCESSING METHOD - A fluid is processed between processing surfaces capable of approaching to and separating from each other, at least one of which rotates relative to the other. A first fluid is introduced between processing surfaces, by using a micropump effect acting with a depression arranged on the processing surfaces from the center of the rotating processing surfaces. A second fluid, independent of this introduced fluid, is introduced from another fluid path that is provided with an opening leading to the processing surfaces, whereby the processing is done by mixing and stirring between the processing members. | 05-15-2014 |
20140155247 | METHOD FOR PRODUCING MICROPARTICLES HAVING CONTROLLED CRYSTALLITE DIAMETER - At least two types of fluids to be processed are mixed in a thin film fluid formed between at least two processing surfaces which are approachably and separably disposed facing each other. At least one processing surface rotates relative to the other, and a substance to be separated giving a controlled crystallite diameter is caused to separate. Specific conditions related to a fluid to be processed are varied to control the crystallite diameter of the substance to be separated. The specific conditions are the type of substance to be separated; the concentration of the substance to be separated included in the raw material fluid and/or substance included in the separating fluid; the pH of the raw material fluid and/or separating material fluid; the introduction temperature of the raw material fluid and/or separating fluid; and the introduction velocity of the raw material fluid and/or separating fluid. | 06-05-2014 |
20140221685 | METHOD FOR PRODUCING BARIUM TITANYL SALT AND BARIUM TITANATE - A method for producing a high-quality barium titanyl salt includes using, as the fluids to be treated, at least two kinds of fluids, namely, a barium titanium mixed solution that is obtained by dissolving both a barium compound and a titanium compound in a solvent, a compound solution that is obtained by dissolving, in a solvent, a compound capable of deposing the barium and titanium contained in the barium-titanium mixed solution into a barium titanyl salt, and if necessary, one or more other fluids; and mixing these fluids together in a thin film fluid formed at least between two treating surfaces and to form a barium titanyl salt. The treating surfaces are so arranged as to face each other in an approachable/separable state with one of the treating surfaces and being capable of turning relatively to the other. | 08-07-2014 |
20140301892 | SOLID SILVER-COPPER ALLOY - The present invention addresses the problem of providing a novel, solid silver-copper alloy. Provided is a solid silver-copper alloy in which the concentration of copper contained in the silver-copper alloy is 0.1-99.94 wt %, and which has, as the principal constituent thereof, a non-eutectic structure which does not contain a eutectic when the solid silver-copper alloy is at room temperature. This silver-copper alloy can be produced by mixing a fluid containing silver ions and copper ions with a fluid containing a reducing agent, and separating silver-copper alloy particles therefrom. It is preferable to mix the fluid containing the silver ions and copper ions with the fluid containing the reducing agent in a thin-film fluid formed between processing surfaces arranged so as to face one another, capable of approaching toward and separating from one another, and capable of having at least one surface rotate relative to the other. The diameter of the particles of the silver-copper alloy is preferably 50 nm or less. This solid silver-metal alloy may also be a solid alloy comprising one or more types of other metals in addition to silver and copper. | 10-09-2014 |
20140308158 | SOLID METAL ALLOY - The present invention addresses the problem of providing a novel, sold metal alloy. Provided is a metal alloy containing two or more types of metal, wherein an equilibrium diagram of the metal alloy shows the two or more types of metal in a finely mixed state at the nanolevel in a specific region where the two types of metal are unevenly distributed. This metal alloy has a substitutional solid solution of the two or more types of metal as the principal constituent thereof. This metal alloy is preferably one obtained by precipitation after mixing ions of two or more types of metal and a reducing agent in a thin-film fluid formed between processing surfaces, at least one of which rotates relative to the other, which are arranged so as to face one another and are capable of approaching and separating from one another. | 10-16-2014 |
20150020647 | METHOD FOR PRODUCING MICROPARTICLES - The present invention addresses the problem of providing a method for producing microparticles. Composite microparticles are separated by mixing at least two kinds of fluids to be processed in a thin film fluid that is formed between approachable and separable opposing processing surfaces that relatively rotate, wherein the fluids to be processed are a metal fluid comprising at least two kinds of metal elements that are dissolved in a solvent in the form of metal and/or metal compound and a fluid for separation containing at least one kind of separating substance for separating a composite substance comprising the at least two kinds of metal elements. The molar ratio between the at least two kinds of metal elements contained in the resulting microparticles is controlled by controlling the circumferential speed of the rotation at a confluence where the metal fluid and the fluid for separation merge at this time. | 01-22-2015 |
20150030760 | METHOD FOR PRODUCING MICROPARTICLES - The invention addresses the problem of providing a method for producing microparticles. Provided is a method for producing microparticles. For the first process, seed microparticles are separated in a thin film fluid that forms between at least two processing surfaces, which are disposed facing each other, which can approach or separate from each other and at least one of which rotates relative to the other, and the fluid comprising the separated seed microparticles is discharged as a discharge fluid. Subsequently, for the second process, the separated seed microparticles are grown in the discharged discharge fluid to obtain the intended microparticles. Uniform and homogeneous micropartcles are obtained as a result of the microparticle producing method comprising the two process. | 01-29-2015 |
20150034884 | METHOD FOR PRODUCING SEMICONDUCTOR MICROPARTICLES AND THE MICROPARTICLES - It is an object to provide a method for producing compound semiconductor particles in which monodisperse compound semiconductor particles can be prepared according to the intended object, clogging with products does not occur due to self-dischargeability, a large pressure is not necessary, and productivity is high. In producing compound semiconductor particles by separating and precipitating, in a fluid, semiconductor raw materials, the fluid is formed into a thin film fluid between two processing surfaces arranged so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, and the semiconductor raw materials are separated and precipitated in the thin film fluid. Further, in producing semiconductor microparticles containing semiconductor elements by reacting a compound containing semiconductor elements, in a fluid, with a reducing agent, the fluid is formed into a thin film fluid between two processing surfaces arranged so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, and the compound containing semiconductor elements is reacted with the reducing agent in the thin film fluid. | 02-05-2015 |