Yura Tech Co., Ltd.

Jong Hyun Im

Dae Yeol Ohm

Hyun Joong Kim

Seok Ki Song

Nack Joon Kim

Jun Ho Bae

Nack J Kim

Provided is an ignition plug used for an internal-combustion engine. The ignition plug includes: a center electrode; an insulator disposed outside the center electrode; a metal housing disposed outside the insulator; a ground electrode having an end connected to the metal housing and the other end facing the center electrode; and an electrode tip fixed to one or more of the center electrode and the ground electrode. The electrode tip is made of an alloy of iridium Ir, hafnium Hf, and niobium Nb. Therefore, the ignition plug with the low-cost iridium can have high resistance to prevent an iridium element from oxidizing and vaporizing in high speed driving conditions.

Growing community of inventors

Chungcheongbuk-do, South Korea

Jong Hyun Im