YT

Yusuke Tenkumo

Ngk Spark Plug Co.: 1 patents #52 of 146Top 40%
Overall (2020): #205,477 of 565,922Top 40%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10680416 Method for producing a spark plug including an electrode having a base portion and a tip fixed to the base portion Susumu Imai 2020-06-09