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公开(公告)号：US20250108369A1
公开(公告)日：2025-04-03
申请号：US18833271
申请日：2022-11-18
Applicant: ENPLAS CORPORATION
Inventor： Seiichiro SUZUKI , Koichi ONO , Yuichi SUZUKI
IPC: B01L3/00
Abstract: Provided is a fluid handling device in which a fluid can fill not only a specific flow path but also a connection flow path branching from the specific flow path. The fluid handling device includes a main flow path, a first flow path, and a first connection flow path connecting the main flow path to the first flow path. The main flow path is a flow path into which a fluid A is introduced to fill the main flow path and the first connection flow path, and when the fluid A introduced into the main flow path flows from the main flow path into the first connection flow path, a Laplace pressure PL1 acting at an interface between the fluid A and a fluid B filling the first connection flow path in advance satisfies Condition 1. Condition 1 is PC>PL1, where PC is the internal pressure in a branching portion of the main flow path branching to the connection flow path, and PL1 is the Laplace pressure when the dynamic contact angle θ of the fluid A introduced from the main flow path into the connection flow path relative to an inner wall of the connection flow path is set to a value less than π.
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公开(公告)号：US20240017253A1
公开(公告)日：2024-01-18
申请号：US17864112
申请日：2022-07-13
Applicant: ENPLAS CORPORATION
Inventor： Seiichiro SUZUKI
CPC classification number: B01L3/502723 , B01D19/00 , B01L2200/0684 , B01L2300/0877
Abstract: Provided is a novel fluid handling system capable of preventing bubbles from entering an internal flow channel of a fluid handling device during fluid delivery to the internal flow channel. A fluid handling system of the present invention includes a fluid handling device, a reservoir that stores a fluid, and a supply unit that supplies the fluid to the reservoir, wherein the fluid handling device has a first flow channel, the reservoir has a main body, the main body having a communicating portion that communicates with the first flow channel of the fluid handling device, and the supply unit has a second flow channel through which the fluid flows and a vent portion that makes the second flow channel communicate with the outside, the second flow channel having an inlet port through which the fluid flows into the second flow channel and an outlet port through which the fluid flows out of the second flow channel, the vent portion being located above the outlet port, the outlet port being located inside the reservoir, and the vent portion being located above the communicating portion.
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公开(公告)号：US20220362775A1
公开(公告)日：2022-11-17
申请号：US17318002
申请日：2021-05-12
Applicant: Enplas Corporation
Inventor： Seiichiro SUZUKI
IPC: B01L3/00
Abstract: A fluid handling device includes a sample channel configured to carry a sample; a dispersion medium channel configured to carry dispersion medium; a dispersion liquid generation part connected to the sample channel and the dispersion medium channel, and configured to generate dispersion liquid by dividing the sample by the dispersion medium, the dispersion liquid being liquid in which droplets of the sample are dispersed in the dispersion medium; and a dispersion liquid channel connected to the dispersion liquid generation part. The dispersion liquid generation part includes a protrusion.
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公开(公告)号：US20230034176A1
公开(公告)日：2023-02-02
申请号：US17387149
申请日：2021-07-28
Applicant: Enplas Corporation
Inventor： Koichi ONO , Hayato INOUE , Tomoki NAKAO , Seiichiro SUZUKI
IPC: B01L3/00
Abstract: A fluid handling system includes a fluid handling device including an opening for introducing a fluid or discharging the fluid; a tube including a flange, where one end of the tube is for connection to the opening, and the other end of the tube is for connection to an introduction device for supplying the fluid or to a discharge device for discharging the fluid; a support member including a first through hole into which the tube is inserted, and movably supporting the tube; and a first elastic member including a second through hole into which the tube is inserted, and holding a part of the tube while the first elastic member is in contact with the flange and the fluid handling device or the support member.
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Patent Agency Ranking
公开(公告)号：US20220371004A1
公开(公告)日：2022-11-24
申请号：US17744689
申请日：2022-05-15
Applicant: Enplas Corporation
Inventor： Nobuya SUNAGA , Seiichiro SUZUKI , Koichi ONO
Abstract: The present invention aims to provide a fluid handling device which can be manufactured more conveniently, can easily open and close a channel, and can be miniaturized. The fluid handling device of the present invention includes: a first channel; a second channel; and a valve disposed between the first channel and the second channel, in which the valve includes: a groove-shaped valve seat disposed in a board, and a flat plate-shaped flexible layer covering the groove-shaped valve seat, and the valve communicates between the first channel and the second channel when the flat plate-shaped flexible layer and a bottom of the groove-shaped valve seat are spaced apart from each other, and blocks communication between the first channel and the second channel when the flat plate-shaped flexible layer and an inner wall of the groove-shaped valve seat are in contact with each other.
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公开(公告)号：US20230097798A1
公开(公告)日：2023-03-30
申请号：US17490141
申请日：2021-09-30
Applicant: Enplas Corporation
Inventor： Seiichiro SUZUKI , Nobuya SUNAGA
Abstract: The present invention relates to a fluid handling device which can prevent an inclination of a rotary member. The fluid handling device includes: a substrate; a circular first groove disposed on the substrate; a second groove connected to the first groove; a third groove connected to the first groove; a film joined to the substrate so as to cover the first groove, the second groove and the third groove; and a joining area where the film and the bottom of the first groove is joined, the joining area being disposed between a connecting portion of the second groove and a connecting portion of the third groove in the first groove. The surface of the film in the joining area is located closer to the bottom of the first groove than the surface of the film in an area joined to the substrate of the film.
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公开(公告)号：US20230096416A1
公开(公告)日：2023-03-30
申请号：US17490091
申请日：2021-09-30
Applicant: Enplas Corporation
Inventor： Seiichiro SUZUKI , Nobuya SUNAGA
IPC: F04B43/14
Abstract: The present invention relates to a fluid handling device which can prevent an inclination of a rotary member. The fluid handling device includes a substrate; an arc-shaped groove having a central angle more than 180° disposed on the substrate; a first protrusion located between both ends of the groove in the same circumference as the arc-shaped groove; a second protrusion disposed in the groove; and a film joined on the substrate so as to cover the groove, the first protrusion and the second protrusion. The groove closed by the film functions as a rotary membrane pump.
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公开(公告)号：US20230128269A1
公开(公告)日：2023-04-27
申请号：US17966974
申请日：2022-10-17
Applicant: Enplas Corporation
Inventor： Seiichiro SUZUKI , Nobuya SUNAGA
Abstract: An object is to provide a fluid handling device which can be easily manufactured and which makes it possible for a valve to be easily opened and closed with a small force. A fluid handling device for achieving the above object includes a first region; a second region; and a valve disposed between the first region and the second region, in which the valve includes: a groove-shaped valve seat disposed in a board, and a flexible layer covering the groove-shaped valve seat, and a surface of the flexible layer facing the groove-shaped valve seat is a flat surface, a protrusion is disposed on a side of the flexible layer opposite to the groove-shaped valve seat and at a position corresponding to the groove-shaped valve seat.
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公开(公告)号：US20210023551A1
公开(公告)日：2021-01-28
申请号：US17040994
申请日：2019-03-25
Applicant: Enplas Corporation
Inventor： Seiichiro SUZUKI
IPC: B01L3/00
Abstract: A fluid handling device according to the present invention is a fluid handling device for arranging a plurality of particles in one column while separating the particles from one another, to recover the same from a mixed solution in which the plurality of particles are collected in a surface layer or a bottom layer of a liquid. The fluid handling device according to the present invention comprises: an immersed portion for immersion in the liquid; a particle intake port opening in a surface of the immersed portion; a liquid intake port opening in a surface of the immersed portion; a particle flow passage; a liquid flow passage; a merging portion where the particle flow passage and the liquid flow passage merge; and a merged flow passage disposed downstream of the merging portion.
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