KO

Kozi Ohta

HW Hisaka Works: 1 patents #28 of 55Top 55%
Overall (All Time): #3,299,106 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7775502 Ball valve with a rotatable body capable of being kept out of substantial contact with a seat member 2010-08-17