Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648044 | Graphite steel for machine structural use exhibiting excellent free cutting characteristic, cold forging characteristic and post-hardening/tempering fatigue resistance | Toshiyuki Hoshino, Akihiro Matsuzaki, Keniti Amano | 1997-07-15 |
| 5626433 | Ball joint | — | 1997-05-06 |