Inventor

YABUNE HIROYUKI

JP3 patents

Patents

3 patents

US10557551B2Feb 11, 2020

Combined oil control ring

KK RIKEN1 citations57

US9618115B2Apr 11, 2017

Combined oil control ring

KK RIKEN0 citations37

US11994219B2May 28, 2024

Side rail and oil control ring comprising same

KK RIKEN0 citations34