Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5250205 | Lubricating oil | Shin-ichi Akimoto, Tohru Yasukohchi, Shinya Okumura | 1993-10-05 |
| 4828735 | Aqueous lubricant composition | Kenichiro Minagawa, Yoshiharu Tanizaki, Heihachiro Okabe | 1989-05-09 |