Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5100857 | Catalyst for steam reforming | Nobuhiro Sato, Kozo Ohsaki, Katsutoshi Kikuchi, Yoshitsugu Hirota, Toru Numaguchi | 1992-03-31 |
| 4990481 | Catalyst for steam reforming | Nobuhiro Sato, Kozo Ohsaki, Katsutoshi Kikuchi, Yoshitsugu Hirota, Toru Numaguchi | 1991-02-05 |