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公开(公告)号：US11738348B2
公开(公告)日：2023-08-29
申请号：US16971407
申请日：2019-02-18
Applicant: Enplas Corporation
Inventor： Nobuya Sunaga , Takumi Yamauchi
IPC: B01L3/00
CPC classification number: B01L3/567 , B01L2300/088 , B01L2300/0816 , B01L2300/0867 , B01L2400/0638
Abstract: A first fluid handling device according to the present invention has: a first liquid introduction part; a first cleaning liquid introduction part; a first flow path through which a liquid introduced to the first liquid introduction part or to the first cleaning liquid introduction part flows; a second liquid introduction part; a second cleaning liquid introduction part; a second flow path through which a liquid introduced to the second liquid introduction part or to the second cleaning liquid introduction part flows; a third flow path which allows flowing therethrough of the liquid having flowed through the first flow path and the liquid having flowed through the second flow path; a first diaphragm valve that is disposed between the first and third flow paths; a second diaphragm valve that is disposed between the second and third flow paths; and a chamber that is connected to the third flow path.
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公开(公告)号：US11311881B2
公开(公告)日：2022-04-26
申请号：US16957758
申请日：2018-12-14
Applicant: Enplas Corporation
Inventor： Nobuya Sunaga
IPC: B01L3/00
Abstract: The purpose of the present invention is to provide a liquid handling method that makes it possible to simply isolate a droplet, a fluid handling device used in this method, and a fluid handling system. This fluid handling method serves to flow a fluid including a solvent and a droplet through a fluid handling device comprising an inlet, a first flow path having one end connected to the inlet, a chamber connected to the other end of the first flow path, a second flow path having one end connected to the chamber, and an outlet connected to the other end of the second flow path. This fluid handling method includes an introduction step for introducing the fluid through the inlet and accommodating the droplet in the chamber, a rotation step for rotating the fluid handling device after the introduction step, and a removal step for removing the droplet from the inside of the chamber after the rotation step. In the introduction step, the fluid handling device is disposed such that the chamber widens from the position where the chamber and the second flow path are connected in the direction opposite from the direction of gravity.
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公开(公告)号：US11268620B2
公开(公告)日：2022-03-08
申请号：US17061237
申请日：2020-10-01
Applicant: Enplas Corporation
Inventor： Koichi Ono , Nobuya Sunaga
Abstract: A channel chip having a channel for running a fluid that is opened and closed by sliding on a film a sliding member slidable on the film while contacting with the film, the channel chip comprising: a substrate including a first channel, a second channel and a partition wall formed between the first channel and the second channel; a film including a diaphragm having a substantially spherical crown shape, the film being disposed on the substrate so that the diaphragm faces the partition wall; and a positioning section for holding the sliding member in such a way that the sliding member is slidable on the film while the positioning section positions the sliding member, the positioning section being disposed on the film.
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公开(公告)号：US12011717B2
公开(公告)日：2024-06-18
申请号：US17490141
申请日：2021-09-30
Applicant: Enplas Corporation
Inventor： Seiichiro Suzuki , Nobuya Sunaga
CPC classification number: B01L3/50273 , F04B43/02 , B01L2300/08 , B01L2300/0887
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：US11471883B2
公开(公告)日：2022-10-18
申请号：US16765258
申请日：2018-11-09
Applicant: Enplas Corporation
Inventor： Takumi Yamauchi , Nobuya Sunaga
IPC: B01L3/00
Abstract: A fluid chip suitable for a fluid device is disclosed in which an upper surface of a flow passage has another member bonded thereto. The disclosed fluid chip, in which a flow passage is formed, comprises a base material having a top surface forming at least a portion of a bottom surface of a flow passage, and a bonding member which is formed from an elastomer resin and an upper end surface of which is provided in a position higher than the top surface of the base material. The base material has a support post portion which projects from the top surface and defines the height of a side surface of the flow passage, and the support post portion of the base material is embedded in the bonding member.
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Patent Agency Ranking
公开(公告)号：US11446666B2
公开(公告)日：2022-09-20
申请号：US16971324
申请日：2019-02-18
Applicant: Enplas Corporation
Inventor： Nobuya Sunaga
IPC: B01L3/00
Abstract: The objective of the present invention is to provide a fluid handling device capable of easily isolating droplets. This objective is achieved by means of a fluid handling device which includes a first flow passage through the interior of which, when a fluid containing a droplet is delivered, the droplet can move, a first chamber which captures the droplet moving through the first flow passage, a second chamber into which the droplet captured by the first chamber can move, and a second flow passage providing communication between the first chamber and the second chamber, wherein the second flow passage is capable of selectively allowing the droplet to pass, or restricting passage of the droplet.
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公开(公告)号：US12162004B2
公开(公告)日：2024-12-10
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：US11541389B2
公开(公告)日：2023-01-03
申请号：US17041463
申请日：2019-03-25
Applicant: Enplas Corporation
Inventor： Nobuya Sunaga , Takumi Yamauchi , Satomi Yabuuchi
Abstract: This fluid handling device has a rotary member that is rotatable around the central axis. In the rotary member, a first protruding part for pressing and closing a valve of a flow channel chip and a recessed part for opening the valve without pressing the valve are disposed on the circumference of a first circle around the central axis. The rotary member further has a second protruding part for, when the recessed part is located at the valve in a state where the rotary member is rotated, pressing the valve so as not to open the valve.
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公开(公告)号：US20210299659A1
公开(公告)日：2021-09-30
申请号：US17206461
申请日：2021-03-19
Applicant: Enplas Corporation
Inventor： Nobuya Sunaga
IPC: B01L3/00
Abstract: A liquid handling device includes a chamber including a first opening and a second opening in a wall surface; a first channel connected to the first opening of the chamber; and a second channel connected to the second opening of the chamber. The chamber includes a recess and a film disposed to cover an opening of the recess, the film including an air chamber part curved to a side opposite to the recess. In plan view, an entirety of the air chamber part is disposed inside the opening of the recess.
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公开(公告)号：US20230095969A1
公开(公告)日：2023-03-30
申请号：US17942195
申请日：2022-09-12
Applicant: Enplas Corporation
Inventor： Nobuya Sunaga
IPC: B01L3/00
Abstract: A liquid handling device includes: a cartridge including a first reservoir part in which a first reagent that is preservable in a non-frozen state is stored; and a channel chip including a second reservoir part in which a second reagent that should be preserved in a frozen state is stored, and a channel connected to the second reservoir part. The cartridge is attachable and detachable to and from the channel chip. The first reservoir part is connected to the channel when the cartridge is mounted in the channel chip.
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