YT

Yasunobu Tsutsumi

NM Nippon Steel & Sumitomo Metal: 1 patents #155 of 478Top 35%
Overall (2017): #190,931 of 506,227Top 40%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9617690 Flash butt welding method of rail steel Kenji Saita, Hiroshi Fukuchi 2017-04-11