KK

Kouji Kunitake

NC Nippon Piston Ring Co.: 1 patents #120 of 208Top 60%
NC Nittan Valve Co.: 1 patents #49 of 98Top 50%
Overall (All Time): #2,857,242 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10287933 Assembly of internal combustion engine valve and valve seat Satoshi IKEMI, Hiroshi Oshige, Kiyoshi Suwa, Kenichi Sato, Ryouichi Yoshino 2019-05-14