WK

Watanabe Koichi

NC Nisshin Steel Co.: 2 patents #160 of 514Top 35%
Overall (All Time): #2,322,370 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4908279 Multilayer electroplated steel sheet Hirose Yusuke, Uchida Yukio, Kato Yoshio, Hisada Kazuyuki, Sakai Nobuhiko +1 more 1990-03-13
4835066 Plated steel sheet having excellent coating performance Irie Taisuke, Kotegawa Junichi, Hukuda Satoshi 1989-05-30