Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849166 | High strength stainless steel | Kazuo Hoshino, Sadao Hirotsu | 1989-07-18 |
| 4847168 | Slicing saw blade | Sadao Hirotsu, Kazuo Hoshino | 1989-07-11 |
| 4810465 | Free-cutting Ti alloy | Atsuyoshi Kimura | 1989-03-07 |
| 4806304 | Free cutting steel | Atsuyoshi Kimura, Makoto Saito | 1989-02-21 |