KK

Koji Kunitake

NC Nittan Valve Co.: 2 patents #26 of 98Top 30%
Overall (All Time): #1,841,041 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11536167 Method for manufacturing engine poppet valve Daiki Sato, Yuki Sasagawa 2022-12-27
11300018 Hollow exhaust poppet valve Jin Hasegawa, Yuki Sasagawa 2022-04-12