Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370364 | Titanium alloy engine valve shaft structure | Shinichi Umino, Eiji Hirai, Kazuyoshi Kurosawa, Yoshio Matsumura | 1994-12-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370364 | Titanium alloy engine valve shaft structure | Shinichi Umino, Eiji Hirai, Kazuyoshi Kurosawa, Yoshio Matsumura | 1994-12-06 |