Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8580719 | Lubricating oil composition for internal combustion engine | Motoharu Ishikawa | 2013-11-12 |
| 5858932 | Internal combustion engine oil composition | Masashi Dasai, Hiroshi Fujita | 1999-01-12 |
| 5049291 | Lubricating oil composition for two-cycle engines | Tomomi Miyaji | 1991-09-17 |