Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4932981 | Apparatus for the production of gas | Kozo Ohsaki, Hideaki Yanaru | 1990-06-12 |
| 4909809 | Apparatus for the production of gas | Kozo Ohsaki, Hideaki Yanaru | 1990-03-20 |
| 4714593 | Reforming apparatus | Akio Naito, Toru Numaguchi | 1987-12-22 |