KM

Keishi Matsumoto

SI Sumitomo Metal Industries: 1 patents #4 of 98Top 5%
📍 Takarazuka, CA: #2 of 4 inventorsTop 50%
Overall (2003): #180,541 of 273,478Top 70%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6659509 Threaded joint for steel pipes Kunio Goto, Kazuyuki Nakasuji, Toshiro Anraku, Shigeo Nagasaku 2003-12-09