AN

Akira Narita

SI Sumitomo Metal Industries: 1 patents #5 of 78Top 7%
Overall (1997): #179,793 of 185,788Top 100%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5649725 Thread joint for tube Shigeo Nagasaku, Kenichi Ohyabu, Jun Maeda 1997-07-22