Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663125 | Lubricating oil for two-cycle engines | Mitsuaki Ishimaru, Noboru Ishida | 1997-09-02 |
| 5624890 | Lubricating oil composition for use in two-stroke cycle cylinder injection engine | Kazuo Miyazawa | 1997-04-29 |