YH

Yoshiaki Hirota

NM Nippon Steel & Sumitomo Metal: 2 patents #84 of 466Top 20%
Overall (2018): #87,772 of 503,207Top 20%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10160058 Electric resistance welded pipe welding apparatus 2018-12-25
9888529 Induction heating device for a metal plate 2018-02-06