Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11236790 | Ventilated type brake disc rotor | Tatsuya Yamagishi, Tatsuya Saito | 2022-02-01 |
| 4359034 | Exhaust gas recirculation control system | Yasushi Mase | 1982-11-16 |
| 4267809 | Exhaust gas recirculation control system | Yasushi Mase | 1981-05-19 |