Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032356 | High fatigue strength metal band saw backing material | Toshio Okuno, Yoshihiro Minagi, Katuaki Fukushima | 1991-07-16 |
| 4948556 | Piston ring material and piston ring | — | 1990-08-14 |