公开(公告)号：US11786922B2

公开(公告)日：2023-10-17

申请号：US17262153

申请日：2019-07-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tetsunori Aono ,  Jumpei Oe ,  Yohei Ishigami ,  Kana Shimizu ,  Takafumi Omori ,  Yukari Nakano ,  Takayuki Nakada

IPC: B05B5/00 ,  B05B5/053 ,  H01T19/04

CPC classification number: B05B5/007 ,  B05B5/006 ,  B05B5/0536 ,  H01T19/04

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.

公开(公告)号：US11623230B2

公开(公告)日：2023-04-11

申请号：US16641992

申请日：2018-07-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yohei Ishigami ,  Jumpei Oe ,  Yukari Nakano ,  Takafumi Omori ,  Tetsunori Aono ,  Kana Shimizu

IPC: B05B5/00 ,  B05B5/025 ,  B05B5/057

Abstract: Voltage application device includes voltage application circuit. Voltage application circuit applies a voltage to load including discharge electrode that holds liquid, voltage application circuit generating discharge in discharge electrode. During a drive period, voltage application circuit periodically changes a magnitude of the voltage applied to load at a drive frequency within a predetermined range including a resonance frequency of liquid, voltage application circuit mechanically vibrating liquid.

公开(公告)号：US11552457B2

公开(公告)日：2023-01-10

申请号：US15656900

申请日：2017-07-21

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Youhei Ishigami ,  Masaharu Machi ,  Takafumi Omori ,  Tomohiro Yamaguchi ,  Osamu Imahori ,  Tetsunori Aono ,  Takayuki Nakada ,  Yukari Nakano

IPC: H01T19/04 ,  H01T21/00 ,  B05B5/057 ,  H01T23/00 ,  B05B5/025

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.

公开(公告)号：US10207245B2

公开(公告)日：2019-02-19

申请号：US15684364

申请日：2017-08-23

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yukari Nakano ,  Itaru Saida

IPC: B01J19/08 ,  H01T19/00 ,  A61L9/04 ,  A61L9/14 ,  A61L9/12 ,  B05B5/00 ,  B05B5/10

Abstract: A voltage application device according to the present disclosure includes a voltage application circuit and a control circuit. The control circuit causes the voltage application circuit to alternately repeat a first mode and a second mode. The first mode is a mode that raises a voltage while time elapses, and generates a discharge current by promoting corona discharge to dielectric breakdown. The second mode is a mode that lowers the voltage to cut off the discharge current by causing a load to be in an overload state against the voltage application circuit. This can suppress an amount of ozone generated, while increasing an amount of radicals produced.