Oil ring for internal combustion engine

Assignee

• Riken

Inventors

• Yunzhi Gao (16 patents)
• Junichi Takahashi (102 patents)
• Gyo Muramatsu (19 patents)
• Ryo Obara (5 patents)
• Tetsuji Miyashita (1 patents)
• Tadahiko Watanabe (27 patents)

View full patent text on Google Patents →