TY

Tomio Yamakawa

NM Nippon Steel & Sumitomo Metal: 4 patents #6 of 440Top 2%
Overall (2016): #33,085 of 481,213Top 7%
4
Patents 2016

Issued Patents 2016

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9486845 Inner surface regulation tool, plug, mandrel, hot rolling mill, press piercing machine, and drawing machine Kouji Yamane, Kazuhiro Shimoda, Yuji Inoue 2016-11-08
9308561 Method of producing seamless metal pipe Kouji Yamane, Kazuhiro Shimoda 2016-04-12
9283600 Plug for hot pipe making Kouji Yamane, Kazuhiro Shimoda, Yuji Inoue 2016-03-15
9254511 Method for producing seamless tube/pipe Kenichi Saitou, Kazuhiro Shimoda 2016-02-09