Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850803 | Ceramic radial turbine rotor | Keiji Kawasaki | 1989-07-25 |
| 4839214 | Ceramic rotors for pressure wave superchargers and production thereof | Isao Oda | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850803 | Ceramic radial turbine rotor | Keiji Kawasaki | 1989-07-25 |
| 4839214 | Ceramic rotors for pressure wave superchargers and production thereof | Isao Oda | 1989-06-13 |