Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857645 | Process for introducing a thiocarboxylic ester group at the orthoposition of phenols or phenylamines | Adachi Makoto, Hiromu Matsumura | 1989-08-15 |
| 4831132 | Ortho-mono-substituted amino)phenylimines | Kazuyuki Sasakura | 1989-05-16 |