TM

Takeshi Masui

SI Sumitomo Metal Industries: 1 patents #16 of 89Top 20%
Overall (1989): #53,031 of 140,708Top 40%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4860416 Variable-crown roll Yoshiro Matsumoto, Atsushi Tomizawa, Eiji Hirooka 1989-08-29