Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9353864 | Oil ring for internal combustion engine | Yunzhi Gao, Junichi Takahashi, Gyo Muramatsu, Ryo Obara, Tadahiko Watanabe | 2016-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9353864 | Oil ring for internal combustion engine | Yunzhi Gao, Junichi Takahashi, Gyo Muramatsu, Ryo Obara, Tadahiko Watanabe | 2016-05-31 |