YH

Yoshiaki Hirota

NM Nippon Steel & Sumitomo Metal: 1 patents #116 of 340Top 35%
Overall (2019): #211,699 of 560,194Top 40%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10307808 Electric-resistance-welded pipe welding apparatus — 2019-06-04