Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571310 | Process for preparing alkoxyphosphonitrile compounds | Tetsuhiko Okamoto, Shinichiro Ueyama, Kazuhiko Fuzikawa | 1986-02-18 |
| 4567028 | Process for the preparation of phosphonitrile chloride oligomer | Tetsuhiko Okamoto, Shinichiro Ueyama | 1986-01-28 |
| 4522689 | Process for purifying phosphonitrile chlorides | Tetsuhiko Okamoto, Shinichiro Ueyama, Kazuhiko Fujikawa, Takatoshi Tsumiyama | 1985-06-11 |