Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5716913 | Metal working oil composition and method of working metal | Yasuyoshi Yamamoto, Haruyo Inaba, Aritoshi Fukushima | 1998-02-10 |
| 5547592 | Lubricant for metallurgy | Kenichi Nakagawa, Koichi Ito | 1996-08-20 |