YK

Yasuhiro Koyakumaru

TC Toyo Kohan Co.: 2 patents #100 of 295Top 35%
Overall (All Time): #2,273,927 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5679181 Method for manufacturing a corrosion resistant nickel plating steel sheet or strip Hitoshi Ohmura, Satoshi Iketaka 1997-10-21
5587248 Corrosion resistant nickel plating steel sheet or strip and manufacturing method thereof Hitoshi Ohmura, Satoshi Iketaka 1996-12-24