Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6772041 | Hardening equipment and hardening method | Toshihiko Inoue, Masaki Itoh, Naoomi Miyagawa | 2004-08-03 |
| 6723947 | Laser beam hardening device | Toshihiko Inoue, Masaki Itoh, Naoomi Miyagawa | 2004-04-20 |