YM

Yasunari Matsumura

NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
NM Nippon Steel & Sumitomo Metal: 1 patents #786 of 1,491Top 55%
Overall (All Time): #2,074,567 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8480951 Tuyere structure of melting furnace Kohji Taoka 2013-07-09
8236233 Taphole structure of melting furnace and repair method thereof Kohji Taoka 2012-08-07