Inventor

KONDO SHUN

JP4 patents

Patents

4 patents

US10586627B2Mar 10, 2020

Spark plug

NGK SPARK PLUG CO2 citations70

US9653888B2May 16, 2017

Spark plug

NGK SPARK PLUG CO1 citations49

US10879675B2Dec 29, 2020

Spark plug

NGK SPARK PLUG CO0 citations39

US10424901B2Sep 24, 2019

Spark plug

NGK SPARK PLUG CO0 citations39