Yoshihito Ooya

RI Riken: 1 patents #10 of 90Top 15%

📍 Gyōda, JP: #21 of 46 inventorsTop 50%

Overall (2017): #185,669 of 506,227Top 40%

Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9657838	Combined oil control ring	—	2017-05-23