SD

Sadao Douchi

NS Nippon Steel: 1 patents #89 of 325Top 30%
VF Vallourec Oil And Gas France: 1 patents #9 of 36Top 25%
Overall (2019): #285,950 of 560,194Top 55%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10495241 Threaded joint for steel pipe Keita Inose, Masaaki Sugino 2019-12-03