Fuji Xerox Co., Ltd.

Kyowa Hakko Kogyo Co., Ltd.

Tetsuo Ohta

Seiichi Takagi

Kazuya Hongo

Hiroshi Kojima

Kazuki Inami

Takayuki Yamada

Masaki Hirota

Kazuaki Tabata

Kiyoshi Nakayama

Yukie Ogawa

Tatsuya Ozawa

Haruo Honda

Hiroshi Miyamoto

Kazuki Imani

Okimasa Okada

A microchannel device is provided, the microchannel device containing a microfluidic channel including a sub fluidic channel in which at least one filtration diaphragm is provided, wherein the microfluidic channel has at least a supply port, a first discharge port and a second discharge port, the supply port and the first discharge port are connected through the filtration diaphragm, the supply port and the second discharge port are connected without the filtration diaphragm, and the filtration diaphragm is provided parallel to a fluidic channel direction of the microfluidic channel.

Microchannel device, separation apparatus, and separation method

A classification device includes: a classification channel for classifying particles; a particle dispersion delivery channel as defined herein; a conveying fluid feed channel as defined herein; and at least one collection channel as defined herein, and the particle dispersion delivery channel satisfying relationship (1):wherein A is a width of the particle dispersion inlet port as measured perpendicular to the flow in the classification channel on a cross-section taken parallel to the flow in the classification channel; and B is a width of the junction between the particle dispersion delivery channel and the classification channel as measured perpendicular to the flow in the classification channel on a cross-section taken parallel to the flow in the classification channel.

Device for classifying particles and method for classifying particles

A separation apparatus contains: a dispersion liquid introduction path to which a dispersion liquid containing particles is introduced; a separation path that has a inclined upper face inclined with respect to a direction of gravity and separates the particles; and a discharge path from which particles separated by the separation path are discharged.

Separation method and separation apparatus

The present invention provides a concentration method of a fine particle dispersion containing fine particles to be electrophoretically migrated, for concentrating the fine particle dispersion by allowing the fine particle dispersion to flow in a laminar flow in a channel having a micro-width to which an electric field is applied in a direction intersecting the direction of a fine particle dispersion flow. The invention also provides a concentration apparatus of a fine particle dispersion using the concentration method.

Concentration method of fine particle dispersion and concentration apparatus of fine particle dispersion

The present invention provides a method for classifying fine particles, the method comprising: introducing a fine particle dispersion in which fine particles are dispersed in a liquid medium into an inlet of a microchannel having the inlet and a recovery portion; and delivering the fine particle dispersion, which has been introduced through the inlet, to the recovery portion in laminar flow, wherein delivering the fine particle dispersion includes classifying the fine particles using the difference in sedimentation speed or floatation speed among the fine particles in the fine particle dispersion. The present invention also provides a device used in the method for classifying fine particles.

Method and device for classifying fine particles

A classifying device for classifying particles using a centrifugal force contains a microchannel includes a curved portion including a first tubular channel and a second tubular channel; and a diaphragm that is provided within the curved portion, and that is located at a position between the first tubular channel and the second tubular channel; and wherein the diaphragm has at least a first apertured group formed in a central region of the diaphragm and a second apertured group formed in a first end region and a second end region of the diaphragm, the first apertured group and the second apertured group communicate the first tubular channel with the second tubular channel along a direction of the centrifugal force, the first apertured group has a mesh, and the second apertured group has a mesh that is different in size from the mesh of the first apertured group.

Classifying device and method of classification

A microreactor apparatus includes; a microreactor body that includes first and second substrates; a microchannel that is formed inside the microreactor body; and integral connectors that are disposed detachably on the microreactor body, and through which supply/discharge pipes are to be connected to end portions of the microchannel, respectively.

Microreactor apparatus having integral connectors

A method of classifying fine particles includes: introducing a fine particle dispersion containing the fine particles to a micro flow channel having an inlet part and a collection part from the inlet part; moving the fine particles to an inner upper side of the micro flow channel by an electric field applied in a gravitational direction; and delivering the fine particle dispersion in a laminar flow state to the collection part. The delivering step includes classifying the fine particles according to differences in settling velocity among the fine particles.

Method and apparatus of classifying fine particles

A method of producing a particle-dispersed liquid, using a channel of micro width having a core flow channel, includes: sending the particle-dispersed liquid containing larger particles to an inner portion of the core flow channel; separating and removing the larger particles from the particle-dispersed liquid; and sending the removed larger particles to an outermost part of the core flow channel. An outer diameter of the core flow channel is 50 to 5,000 &#x3bc;m.

Method of producing particle-dispersed liquid

The present invention provides a method for treating fine particles contained in a first fluid comprising: feeding the first fluid containing the fine particles and a second fluid to generate two laminar flows; migrating a diffusible substance contained in the first fluid into the second fluid at an interface between the first fluid and the second fluid in the laminar flows; and separating the laminar flows into the first fluid containing the fine particles and the second fluid in a diverging region.

Method and device for treating fine particles

Provided are a method for delivering a fine particle dispersion which makes it possible to flow the fine particle dispersion, as a stable flow, in a microflow-channel without sedimentation, being deposited on the bottom face of the inner surface of the channel or blocking up or clogging the channel, so as to give a high efficiency for recovering the fine particles; and a device for delivering a fine particle dispersion which can be used for a long period of time and which makes it possible to flow the fine particle dispersion as a stable flow in a microflow-channel without sedimentation, being deposited on the bottom face of the inner surfaces of the channel or blocking up or clogging the channel.

Method for delivering a fine particle dispersion, and device for delivering a fine particle dispersion

Disclosed is a method of delivering a fine particle dispersion in the state of laminar flow from an inlet port to an outlet port of a microflow channel having the inlet port and the outlet port, the fine particle dispersion containing fine particles having a volume average particle size of from about 1.5 &#x3bc;m to about 1000 &#x3bc;m dispersed in its liquid medium, the specific gravity of the fine particles being from approximately 0.10 to 0.99 times that of the liquid medium, wherein the microflow channel is disposed such that the outlet port is disposed above the inlet port in the buoyant force direction, and the angle of the flow channel from the inlet port to the outlet port is set to from approximately 0 to 45&#xb0; relative to the buoyant force direction, and wherein the fine particle dispersion is introduced into the inlet port and the introduced fine particle dispersion is delivered to the outlet port. Also disclosed is a device for delivering the fine particle dispersion.

Method for delivering fine particle dispersion, and device for delivering fine particle dispersion

This invention relates to a method for producing carnitine comprising contacting, in a reaction medium, carnitinenitrile with (A) a nitrilase capable of hydrolyzing carnitinenitrile to form carnitine or (B) a microorganism containing said nitrilase.

Method of producing carnitine

This invention relates to a method for producing carnitine comprising contacting, in a reaction medium, carnitinamide with (A) an amidase capable of hydrolyzing carnitinamide to form carnitine or (B) a microorganism containing said amidase, carnitinamide hydrolase and a method for producing same.

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Kanagawa, Japan

Tetsuo Ohta