Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5279752 | Composition for lubricating oil | Hiroshi Hasegawa, Umekichi Sasaki, Fujio Komatu, Hideo Yokota | 1994-01-18 |
| 4759861 | Metal working lubricant | Katsumi Seki, Hiroyuki Takashima | 1988-07-26 |