Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478898 | Method of producing tool steels | Tomoaki Sera, Masahide Umino, Kunio Kondo | 2002-11-12 |
| 6475305 | Machine structural steel product | Koji Watari | 2002-11-05 |
| 6386342 | Stainless steel for a disc brake rotor | Shinji Tsuge, Takaaki Matsuda, Tsuyoshi Sakashita, Daisuke Nago | 2002-05-14 |