Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880905 | Process for producing organophosphazene polymers with chlorophosphazene | Shinichiro Ueyama, Yasuhiro Yoshikawa | 1989-11-14 |
| 4864048 | Process for preparing phosphonitrile compound having substituted hydroxyl group | Masaharu Kaneko, Kazuhiko Fujikawa | 1989-09-05 |
| 4795621 | Process for the preparation of phosphonitrile chloride oligomer | Shinichiro Ueyama, Kazuhiko Fujikawa | 1989-01-03 |