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1. 发明申请

US20200236772A1 DIELECTRIC BARRIER DISCHARGE IONIZATION DETECTOR 审中-公开
公开(公告)号：US20200236772A1
公开(公告)日：2020-07-23
申请号：US16712259
申请日：2019-12-12
申请人： Shimadzu Corporation , OSAKA UNIVERSITY
发明人： Kei Shinada , Katsuhisa Kitano
IPC分类号： H05H1/24 , G01N30/64
摘要： A BID includes: a discharger (2) including a dielectric pipe (8) and a pair of electrodes (14, 16) attached on an outer wall of the dielectric pipe, the pair of electrodes (14, 16) being arranged at a distance from each other in a direction along a central axis of the dielectric pipe (8), the discharger (2) being arranged so that plasma generating gas is introduced from a first end of the dielectric pipe (8) and configured to generates dielectric barrier discharge inside the dielectric pipe (8) to generate plasma; a detection section (4) including a sample gas introduction section (31) and a collection electrode (26) for collecting ions, the detection section (4) being configured to ionize components in the sample gas using light emitted from the plasma generated in the discharger (2) and to detect the generated ions by collecting them using the collection electrode (26); and a voltage supply (6; 6′) for generating a potential difference between the pair of electrodes (14, 16).

2. 发明授权

US10436750B2 Dielectric barrier discharge ionization detector 有权
公开(公告)号：US10436750B2
公开(公告)日：2019-10-08
申请号：US15698312
申请日：2017-09-07
申请人： Shimadzu Corporation , Osaka University
发明人： Kei Shinada , Katsuhisa Kitano
IPC分类号： G01N27/68 , G01N27/66 , G01N30/64 , G01N33/00 , H05H1/00 , H05H1/24 , G01N30/02 , G01R19/00
摘要： The dielectric barrier discharge ionization detector includes: a dielectric tube through which a plasma generation gas is passed; a high-voltage electrode formed on the outer wall of the dielectric tube; two ground electrodes and formed on the outer wall of the dielectric tube, with the high-voltage electrode in between; a voltage supplier for applying AC voltage between the high-voltage electrode and each ground electrode to generate electric discharge within the dielectric tube and thereby generate plasma from the plasma generation gas; and a charge-collecting section for detecting an ion current formed by ionized sample-component gas produced by the plasma. The distance between one ground electrode and the high-voltage electrode is longer than a discharge initiation distance between these two electrodes, while the distance between the other ground electrode and the high-voltage electrode is shorter than the discharge initiation distance between these two electrodes.

3. 发明授权

US11558952B2 Dielectric barrier discharge ionization detector 有权
公开(公告)号：US11558952B2
公开(公告)日：2023-01-17
申请号：US16712259
申请日：2019-12-12
申请人： Shimadzu Corporation , OSAKA UNIVERSITY
发明人： Kei Shinada , Katsuhisa Kitano
IPC分类号： H05H1/24 , G01N30/64 , G01N30/02
摘要： A BID includes: a discharger (2) including a dielectric pipe (8) and a pair of electrodes (14, 16) attached on an outer wall of the dielectric pipe, the pair of electrodes (14, 16) being arranged at a distance from each other in a direction along a central axis of the dielectric pipe (8), the discharger (2) being arranged so that plasma generating gas is introduced from a first end of the dielectric pipe (8) and configured to generates dielectric barrier discharge inside the dielectric pipe (8) to generate plasma; a detection section (4) including a sample gas introduction section (31) and a collection electrode (26) for collecting ions, the detection section (4) being configured to ionize components in the sample gas using light emitted from the plasma generated in the discharger (2) and to detect the generated ions by collecting them using the collection electrode (26); and a voltage supply (6; 6′) for generating a potential difference between the pair of electrodes (14, 16).

4. 发明授权

US10739309B2 Dielectric barrier discharge ionization detector 有权
公开(公告)号：US10739309B2
公开(公告)日：2020-08-11
申请号：US15698331
申请日：2017-09-07
申请人： Shimadzu Corporation , Osaka University
发明人： Kei Shinada , Katsuhisa Kitano
IPC分类号： G01N27/70 , G01N30/54 , G01N30/64 , H05H1/24 , G01N27/66 , G01N30/02 , G01R19/00
摘要： A dielectric barrier discharge ionization detector capable of achieving a high signal-to-noise ratio is provided. The detector includes: a discharging section for generating plasma from argon-containing gas by electric discharge; and a charge-collecting section for ionizing a component in a sample gas by an effect of the plasma and for detecting ion current formed by the ionized component. The discharging section includes a cylindrical dielectric tube having a high-voltage electrode connected to AC power source as well as upstream-side and downstream-side ground electrodes and formed on its outer circumferential wall. A semiconductor film is formed on the inner circumferential surface of the tube. The upstream-side and downstream-side ground electrodes are respectively made longer than the initiation distances for a creeping discharge between the high-voltage electrode and a tube-line tip member as well as between the high-voltage electrode and the charge-collecting section.

5. 发明申请

US20150010430A1 ACTIVE SPECIES RADIATION DEVICE AND ACTIVE SPECIES RADIATION METHOD 审中-公开
标题翻译：主动物种辐射装置和有源物种辐射方法
公开(公告)号：US20150010430A1
公开(公告)日：2015-01-08
申请号：US14371893
申请日：2013-01-11
申请人： OSAKA UNIVERSITY
发明人： Katsuhisa Kitano , Atsushi Tani
IPC分类号： B01J19/08 , A61L2/14 , A61L2/03
CPC分类号： B01J19/087 , A61L2/0011 , A61L2/03 , A61L2/14 , B01J2219/0809 , B01J2219/0815 , C02F1/30 , H05H1/2406 , H05H1/46 , H05H2001/2462 , H05H2001/469
摘要： An active species radiation device is for efficiently radiating active species (active oxygen or nitrogen) by using a plasma source not in contact with an irradiated object. An active species radiation device (100) includes: a chamber (110) in which flows of plasma generation gas and active species generation gas enter and which has an active species radiation port (110c) through which active species are radiated; an upstream electrode (120) positioned in a part of the chamber (110) corresponding to an upstream portion of the flow of the plasma generation gas; and a downstream electrode (130) positioned in a part of the chamber (110) corresponding to a more downstream portion of the flow of the plasma generation gas than the upstream electrode (120). The chamber (110) is configured so that the active species generation gas flows into a position between the upstream electrode (120) and the active species radiation port (110c).
摘要翻译：活性物质辐射装置用于通过使用不与被照射物体接触的等离子体源来有效地辐射活性物质（活性氧或氮）。活性物质辐射装置（100）包括：等离子体产生气体和活性物质产生气体流入其中并具有活性物质辐射端口（110c）的室（110）; 位于所述室（110）的与所述等离子体产生气体的流的上游部分对应的部分中的上游电极（120）; 以及位于所述室（110）的与所述等离子体产生气体的流的更下游部分相对应的部分中的下游电极（130），所述下游电极相对于所述上游电极（120）。所述室（110）被构造成使得所述活性物质产生气体流入所述上游电极（120）和所述活性物质辐射端口（110c）之间的位置。

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