Ryoichi Oka

GR Graphtec: 1 patents #1 of 2Top 50%

Overall (2018): #253,570 of 503,207Top 55%

Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
10011034	Cutting plotter	Kazuhiro Watanabe	2018-07-03