Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5403545 | Bearing steel | Yatsuka Takata, Akira Muroga, Yoshihiro Wakikado, Masao Goto, Hazime Tazumi +5 more | 1995-04-04 |
| 4915900 | Free-cutting steel having high fatigue strength | Itie Nomura, Yoshihiro Wakikado | 1990-04-10 |
| 4802918 | Case hardened steel and method of manufacturing the same | Jun Eguchi | 1989-02-07 |