Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5106578 | Cast-to-near-net-shape steel body of heat-resistant cast steel | Kouki Ohtsuka, Kimio Kubo, Koichi Akiyama, Masahide Ike | 1992-04-21 |
| 5091147 | Heat-resistant cast steels | Kouki Ohtsuka, Kimio Kubo, Koichi Akiyama, Masahide Ike | 1992-02-25 |
| 4924967 | Exhaust manifold | Masahide Ike | 1990-05-15 |