Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5407560 | Process for manufacturing petroleum cokes and cracked oil from heavy petroleum oil | Kiyomi Ishii, Mamoru Yamane | 1995-04-18 |
| 4968322 | Fuel composition and fuel additive | Kiyomi Ishii, Mamoru Yamane | 1990-11-06 |