HS

Hiroyuki Sugihara

RI Riken: 1 patents #10 of 90Top 15%
Overall (2017): #400,759 of 506,227Top 80%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9618115 Combined oil control ring Hiroyuki Yabune, Masaaki Fujita 2017-04-11