KY

Katsuhisa Yamasaki

TC Topura Co.: 1 patents #10 of 38Top 30%
Overall (All Time): #2,343,640 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4677703 Dies for forming drilling screws 1987-07-07
4586862 Drilling screw 1986-05-06