KY

Kosei Yamaguchi

PI Piolax: 6 patents #16 of 198Top 9%
Overall (All Time): #834,373 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
10295074 Check valve — 2019-05-21
10221955 Valve device — 2019-03-05
9784377 Check valve — 2017-10-10
9097356 Check valve — 2015-08-04
8561638 Check valve — 2013-10-22
8316881 Fuel tank check valve — 2012-11-27