YH

Yasushi Hasegawa

NS Nippon Steel: 1 patents #57 of 282Top 25%
Overall (1989): #42,225 of 140,708Top 35%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4804021 Highly tough ERW steel pipe with distinguished sour resistance Hiroyo Haga 1989-02-14