KS

Katsutoshi Sumitani

NM Nippon Steel & Sumitomo Metal: 1 patents #155 of 478Top 35%
VF Vallourec Oil And Gas France: 1 patents #16 of 35Top 50%
Overall (2017): #352,569 of 506,227Top 70%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9568126 Threaded joint for steel pipe Masayoshi Sasaki, Kunio Goto 2017-02-14