YO

Yotaro Ono

NC Nippon Kokan Co.: 1 patents #20 of 100Top 20%
Overall (1989): #40,438 of 140,708Top 30%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4887800 Tuyere of blast furnace Hirohisa Hotta, Masahiro Matsuura 1989-12-19