YT

Yukitoshi Tamura

SC Sumitomo Metal Mining Co.: 1 patents #4 of 15Top 30%
Overall (1989): #39,269 of 140,708Top 30%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4882491 Infrared detector Keiji Takamatsu 1989-11-21