Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414146 | Isocyanurate compound and method for producing the same | Toshiaki Takeyama, Motohiko Hidaka | 2002-07-02 |
| 6222074 | Process for preparation of 4,6-diaminoresorcinol or salts thereof | Kenichi Tokunaga, Motohito Shiratori, Hideo Suzuki, Isao Hashiba | 2001-04-24 |
| 5962740 | Processes for producing 4,6-bis (substituted)phenylazoresorcinols | Kenichi Tokunaga, Isao Hashiba, Hideo Suzuki, Yasuo Katsumura, Kazuo Osaki +2 more | 1999-10-05 |