Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5983689 | Lubricant for use in hot work | Akira Yorifuji, Takaaki Toyooka, Masaharu Kita, Taro Kanayama | 1999-11-16 |
| 5859124 | Lubricant for use in hot work | Akira Yorifuji, Takaaki Toyooka, Masaharu Kita, Taro Kanayama | 1999-01-12 |