公开(公告)号：US20210283625A1

公开(公告)日：2021-09-16

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 ,  H01T19/04 ,  B05B5/053

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：US20230390792A1

公开(公告)日：2023-12-07

申请号：US18250173

申请日：2021-11-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yohei ISHIGAMI ,  Makoto IMAI

IPC: B05B5/057 ,  B05B5/035

CPC classification number: B05B5/057 ,  B05B5/035

Abstract: Discharge device includes discharge electrode, voltage application circuit, and current limiting element. Discharge electrode is disposed to face counter electrode, and retains liquid. Voltage application circuit is electrically connected to discharge electrode and counter electrode with discharge electrode as a ground side. Voltage application circuit generates discharge between discharge electrode and counter electrode by applying a voltage between discharge electrode and counter electrode. Current limiting element is electrically connected to a side of discharge electrode opposite to counter electrode. Current limiting element limits a current flowing to discharge electrode.

公开(公告)号：US20220344912A1

公开(公告)日：2022-10-27

申请号：US17761103

申请日：2020-07-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US20240301576A1

公开(公告)日：2024-09-12

申请号：US18264020

申请日：2022-01-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yohei ISHIGAMI ,  Makoto IMAI ,  Takahiro MIYATA ,  Yoshinori TANAKA

IPC: C25B15/08 ,  A23L2/54 ,  B01D53/26 ,  C25B1/04 ,  C25B9/23 ,  C25B9/65

CPC classification number: C25B15/08 ,  A23L2/54 ,  B01D53/261 ,  B01D53/265 ,  C25B1/04 ,  C25B9/23 ,  C25B9/65 ,  B01D2257/80

Abstract: Gas generator includes decomposition unit and supply unit. Decomposition unit reacts with at least a portion of a supply liquid to generate at least one of hydrogen gas or oxygen gas. Supply unit collects moisture in the atmosphere, and supplies the collected moisture to decomposition unit as supply liquid.

公开(公告)号：US20210268524A1

公开(公告)日：2021-09-02

申请号：US17260529

申请日：2019-07-25

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yohei ISHIGAMI ,  Kana SHIMIZU ,  Takafumi OMORI ,  Yukari NAKANO ,  Tetsunori AONO ,  Jumpei OE

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

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.

公开(公告)号：US20240266807A1

公开(公告)日：2024-08-08

申请号：US18566869

申请日：2022-04-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.

公开(公告)号：US20210315349A1

公开(公告)日：2021-10-14

申请号：US17260497

申请日：2019-02-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroyuki INOUE ,  Yohei ISHIGAMI ,  Masato KINOSHITA ,  Aya ISHIHARA ,  Yasunori MATSUI ,  Hayato KIKUCHl

IPC: A45D20/12 ,  A45D20/50 ,  B05B5/00 ,  B05B5/16 ,  B05B5/057

Abstract: A discharge device includes a discharge electrode, a counter electrode that faces the discharge electrode in a first direction, and voltage application unit that applies an application voltage between the discharge electrode and the counter electrode. The counter electrode includes a dome-shaped electrode having a recessed inner surface recessed to a side opposite to the discharge electrode in the first direction, and a protruding electrode that protrudes in a second direction intersecting the first direction from an opening edge of an opening of the dome-shaped electrode, the opening being provided at an end opposite to the discharge electrode. The discharge device forms a discharge path having at least partial dielectric breakdown between the discharge electrode and the protruding electrode, when the discharge occurs. The discharge path includes a first dielectric breakdown region generated around the discharge electrode and a second dielectric breakdown region generated around the protruding electrode.

公开(公告)号：US20200269263A1

公开(公告)日：2020-08-27

申请号：US16796566

申请日：2020-02-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hayato KIKUCHI ,  Yasunori MATSUI ,  Hiroyuki INOUE ,  Yohei ISHIGAMI ,  Masato KINOSHITA

IPC: B05B5/025 ,  B05B5/057 ,  B05B5/053

Abstract: An electrode device includes a discharge electrode and a counter electrode, and discharges when a voltage is applied across the discharge electrode and the counter electrode. The discharge electrode is a columnar electrode having a discharge portion on its front end. The counter electrode faces the discharge portion. The counter electrode has a peripheral electrode portion and a projecting electrode portion. The peripheral electrode portion is disposed to surround an axis of the discharge electrode. The projecting electrode portion projects from a part of the peripheral electrode portion toward the axis of the discharge electrode. A distance from the peripheral electrode portion to the discharge portion is shorter than a distance from the projecting electrode portion to the discharge portion.