Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733600 | Nitrided maraging steel and method of manufacture thereof | Yuichi Heishi, Masahiro Suzuki, Ikuo Tani, Youichi Watanabe, Shunzou Umegaki +1 more | 2004-05-11 |
| 6709629 | Vacuum heat treatment furnace | Hidetoshi Juryozawa, Fumitaka Abukawa, Jun Takahashi, Hisashi Ebihara | 2004-03-23 |