Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10247309 | Mechanical seal device for use in water environment and sealing ring thereof | Keitaro Nakamura, Hitoshi Suzuki | 2019-04-02 |
| 9982784 | Mechanical seal | Hideyuki Inoue, Takeshi Hosoe, Daisuke Morimiya, Yuichiro Tokunaga, Yuta Negishi | 2018-05-29 |