KK

Kentaro Kawano

TC Tpr Co.: 2 patents #21 of 92Top 25%
Overall (All Time): #1,899,895 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10571024 Combination oil ring Seiji Tamaki 2020-02-25
9784369 Combination oil ring Hironori Fujita 2017-10-10