KK

Keiji Kudou

SC Sumitomo Metal Mining Co.: 2 patents #253 of 736Top 35%
Overall (All Time): #1,941,964 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10344354 Nickel recovery process Hirofumi Shoji, Jiro Hayata, Tatsuya Higaki 2019-07-09
9702023 Method for producing high-purity nickel sulfate Atsushi Idegami, Yoshitomo Ozaki, Shin-ichi Heguri, Hideki Ohara, Shinya Matsumoto 2017-07-11