Kohei Usami

Ngk Spark Plug Co.: 1 patents #76 of 208Top 40%

Overall (2019): #380,672 of 560,194Top 70%

Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
10178751	Ignition plug	Kenji Ban	2019-01-08