Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4391994 | Process for the production of ethers | Kiyoshi Kogoma, Jiro Niizeki, Norio Sone, Takashi Tobita | 1983-07-05 |
| 4385190 | Process for the production of diethers | Norio Sone, Takashi Tobita | 1983-05-24 |