SK

Sakae Kumagai

NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
YC Yoshikawa Kogyo Co.: 1 patents #6 of 30Top 20%
Overall (All Time): #4,053,325 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4389360 Method of forming a protective coating on a long lance to be immersed in molten metal Katsuhiko Noro, Yusei Nagaki, Shinpei Sasaki 1983-06-21