The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2022
Filed:
Feb. 20, 2020
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Hayato Kikuchi, Shiga, JP;
Yasunori Matsui, Shiga, JP;
Hiroyuki Inoue, Shiga, JP;
Yohei Ishigami, Osaka, JP;
Masato Kinoshita, Shiga, JP;
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.