公开(公告)号：US20240291244A1

公开(公告)日：2024-08-29

申请号：US18571546

申请日：2022-07-12

Applicant: Niterra Co., Ltd.

Inventor： Kaito NAKAMURA ,  Daisuke SUMOYAMA ,  Takaaki KIKAI ,  Kengo HATTORI

IPC: H01T13/39

CPC classification number: H01T13/39

Abstract: A spark plug which is reduced in consumption of a discharge member, thereby having a longer service life. This spark plug is provided with: a first electrode that comprises a discharge member; and a second electrode that faces the discharge member, with a spark gap lying therebetween. The discharge member is mainly composed of Ru, while containing 0.5% by mass to 30% by mass of Ni or Co.