Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4426511 | Heat-resisting aromatic polyester resin and process for preparing the same | Masahiro Asada, Kazuya Yonezawa | 1984-01-17 |
| 4412057 | Process for manufacturing aromatic polyesters | Masahiro Asada, Kazuya Yonezawa | 1983-10-25 |
| 4395537 | Polyether resin and method of manufacturing the same | Kazuya Yonezawa, Masahiro Asada | 1983-07-26 |
| 4362857 | Method of producing polyether resins using phase transfer catalysts | Kazuya Yonezawa, Junichi Ishizu | 1982-12-07 |