Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478898 | Method of producing tool steels | Tomoaki Sera, Yasutaka Okada, Kunio Kondo | 2002-11-12 |
| 6479013 | Casting components made from a tool steel | Tomoaki Sera, Kunio Kondo | 2002-11-12 |