Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12025043 | Exhaust gas processing device | Kouhei Kuroki, Shunichi Mitsuishi, Hiroaki Masubuchi, Toru Hisanaga, Toru Iijima +2 more | 2024-07-02 |
| 11015612 | Turbine housing | Tooru Iijima, Takaharu Yamamoto | 2021-05-25 |