Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284977 | Process for producing high-purity organic phosphine | Toru Imori, Takayuki Ninomiya, Kouichi Nakamura, Kouhei Ushikubo | 1994-02-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284977 | Process for producing high-purity organic phosphine | Toru Imori, Takayuki Ninomiya, Kouichi Nakamura, Kouhei Ushikubo | 1994-02-08 |