Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814500 | Cyanoguanidine derivative and process for preparation thereof | Noriaki Kihara, Takeshi Ishitoku, Katsuya Takahashi | 1989-03-21 |
| 4808726 | Process for preparation of guanidine derivative | Isao Hashimoto, Ikuo Tomino, Houji Kato, Noriaki Kihara | 1989-02-28 |