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公开(公告)号：US20240266807A1
公开(公告)日：2024-08-08
申请号：US18566869
申请日：2022-04-21
Inventor： Makoto IMAI , Hidetoshi HATA , Yohei ISHIGAMI , Takafumi OMORI , Yuki TAKIGAWA , Tetsunori AONO , Yutaka URATANI , Mikio ITO
IPC: H01T19/04
CPC classification number: H01T19/04
Abstract: Discharge device includes voltage application circuit that applies output voltage to load including discharge electrode holding liquid to generate discharge in discharge electrode. Voltage application circuit includes a function of varying a magnitude of output voltage, and a function of switching a discharge period that is a period for varying the magnitude of output voltage to any one of a plurality of periods having different lengths with a lapse of time.
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Patent Agency Ranking
公开(公告)号：US20210283625A1
公开(公告)日：2021-09-16
申请号：US17262153
申请日：2019-07-25
Inventor： Tetsunori AONO , Jumpei OE , Yohei ISHIGAMI , Kana SHIMIZU , Takafumi OMORI , Yukari NAKANO , Takayuki NAKADA
Abstract: A voltage application device includes a voltage application circuit. The voltage application circuit applies application voltage between discharge electrode and counter electrode which face each other with a clearance left from each other to generate a discharge. The voltage application device forms discharge path partially and dielectrically broken between discharge electrode and counter electrode when a discharge is generated. Discharge path includes first dielectric breakdown region formed around discharge electrode, and second dielectric breakdown region formed around counter electrode.
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公开(公告)号：US20210268524A1
公开(公告)日：2021-09-02
申请号：US17260529
申请日：2019-07-25
Inventor： Yohei ISHIGAMI , Kana SHIMIZU , Takafumi OMORI , Yukari NAKANO , Tetsunori AONO , Jumpei OE
Abstract: Voltage application device includes voltage application circuit. Voltage application circuit causes discharge electrode to generate a discharge by applying an application voltage to load that includes discharge electrode holding liquid. Voltage application circuit periodically changes a magnitude of the application voltage to generate a discharge intermittently. Voltage application circuit applies a maintaining voltage to load for suppressing contraction of liquid in addition to the application voltage during an intermittent period from a discharge to a next discharge.
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公开(公告)号：US20220344912A1
公开(公告)日：2022-10-27
申请号：US17761103
申请日：2020-07-16
Inventor： Yohei ISHIGAMI , Takafumi OMORI , Tetsunori AONO , Sadahiko WAKABA , Takayuki NAKADA
IPC: H01T19/00
Abstract: An electric discharge device according to the present disclosure includes a discharge electrode, a counter electrode, a voltage application circuit, and a liquid supply unit. The discharge electrode is a columnar electrode. The counter electrode faces the discharge electrode. The voltage application circuit applies an application voltage between the discharge electrode and the counter electrode. The liquid supply unit supplies liquid to the discharge electrode. The liquid extends and contracts along a central axis of the discharge electrode by discharge. The counter electrode includes a peripheral electrode part and a projecting electrode part. In a direction along the central axis of the discharge electrode, a tip of the liquid in a state in which the liquid extends is located at the same position as an outer peripheral edge of the peripheral electrode part or located closer to the discharge electrode than the outer peripheral edge.
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公开(公告)号：US20180034248A1
公开(公告)日：2018-02-01
申请号：US15656900
申请日：2017-07-21
Inventor： Youhei ISHIGAMI , Masaharu MACHI , Takafumi OMORI , Tomohiro YAMAGUCHI , Osamu IMAHORI , Tetsunori AONO , Takayuki NAKADA , Yukari NAKANO
CPC classification number: H01T19/04 , B05B5/0255 , B05B5/057 , H01T21/00 , H01T23/00
Abstract: A discharge device according to the present disclosure includes a discharge electrode and a voltage applicator that applies a voltage to the discharge electrode and thus causes discharge that is further developed from corona discharge at the discharge electrode. The discharge is discharge in which a discharge path is intermittently formed by dielectric breakdown so as to stretch from the discharge electrode to a surrounding. This discharge can be called leader discharge. This makes it possible to increase an amount of generated active component while keeping an increase of ozone small.
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公开(公告)号：US20180029053A1
公开(公告)日：2018-02-01
申请号：US15656503
申请日：2017-07-21
Inventor： Tetsunori AONO , Tomohiro YAMAGUCHI , Takafumi OMORI , Osamu IMAHORI , Takayuki NAKADA , Youhei ISHIGAMI
CPC classification number: B05B5/0535 , B05B5/0255 , B05B5/057 , B05B5/16
Abstract: An electrostatic atomizing device of the present disclosure includes a discharge electrode, a counter electrode, a liquid supplying unit, a current path, a voltage applicator, and a limiting resistor. The limiting resistor is disposed on a first current path or a second current path included in the current path. The first current path electrically connects the voltage applicator and the counter electrode, and the second current path electrically connects the voltage applicator and the discharge electrode. This makes it possible to increase an amount of generated radicals while keeping an increase of ozone small. In addition, an electric current peak of an instantaneous electric current can be kept small.
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