Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6783728 | Free-cutting steel for machine structural use having good machinability in cutting by cemented carbide tool | Takashi Kano | 2004-08-31 |
| 6773661 | Free-cutting steel | Masakazu Hayaishi | 2004-08-10 |
| 6764645 | Steel for machine structural use having good machinability and chip-breakability | Masakazu Hayaishi, Takashi Kano, Kazuhisa Ishida, Makoto Hobo | 2004-07-20 |