Naoya Ishihara

NC Nittan Valve Co.: 1 patents #4 of 16Top 25%

Overall (2017): #297,930 of 506,227Top 60%

Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9611953	Hollow poppet valve	Osamu Tsuneishi	2017-04-04