Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886910 | Cyanoguanidine derivative and process for preparation thereof | Hiroaki Tan, Koji Kato, Junichi Imuta | 1989-12-12 |
| 4886912 | Cyanoguanidine derivative and process for preparation thereof | Hiroaki Tan, Keiichi Yokoyama | 1989-12-12 |
| 4814500 | Cyanoguanidine derivative and process for preparation thereof | Teruaki Mukaiyama, Takeshi Ishitoku, Katsuya Takahashi | 1989-03-21 |
| 4808726 | Process for preparation of guanidine derivative | Isao Hashimoto, Ikuo Tomino, Houji Kato, Teruaki Mukaiyama | 1989-02-28 |