Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5466720 | Method of producing dimethyl ether | Kaoru Fujimoto, Tsutomu Shikada, Takashi Sumigama | 1995-11-14 |
| 5389689 | Method of producing dimethyl ether | Kaoru Fujimoto, Tsutomu Shikada, Takashi Sumigama | 1995-02-14 |