HO

Hatsuhiko Oikawa

NS Nippon Steel: 1 patents #89 of 325Top 30%
NM Nippon Steel & Sumitomo Metal: 1 patents #116 of 340Top 35%
Overall (2019): #168,969 of 560,194Top 35%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10406627 Resistance spot welding method Hiroki Fujimoto, Shintaro Yamanaka, Takashi Imamura 2019-09-10
10265797 Resistance spot welding method Hiroki Fujimoto, Shintaro Yamanaka 2019-04-23