Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875442 | Ceramic rocker arm | Masato Taniguchi | 1989-10-24 |
| 4872431 | Internal combustion engine with ceramics valves | Noboru Ishida, Mitsuyoshi Kawamura | 1989-10-10 |
| 4850095 | Method of forming crowned sliding surface in mechanical part | Masato Taniguchi, Masaya Ito | 1989-07-25 |
| 4803766 | Mounting of ceramic tip on metal rocker arm | Masato Taniguchi, Takio Kojima | 1989-02-14 |
| 4796517 | Metal piston and ceramic piston pin assembly | Mitsuyoshi Kawamura, Takio Kojima | 1989-01-10 |