MM

Mamoru Miyamoto

NC Nippon Piston Ring Co.: 1 patents #5 of 20Top 25%
Overall (2020): #359,619 of 565,922Top 65%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10724636 Combined oil ring Masataka Kawasaki, Hideshi Hitosugi, Kenji Arai 2020-07-28