Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4569948 | Preparation process of acetic acid | Hiroshi Ono, Masao Hashimoto, Kenji Fujiwara, Kenji Yoshida | 1986-02-11 |
| 4331451 | Catalytic gasification | Kazuyoshi Isogaya, Kenji Yoshida, Katsutoshi Kikuchi | 1982-05-25 |