Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4476318 | Process for the preparation of 1,3-propanediol bis(p-aminobenzoate) | Chihiro Yazawa | 1984-10-09 |
| 4342859 | Bis(aminophenylthioalkyl)terephthalate and hardener for polyurethane elastomer thereof | Hideaki Ohashi, Wataro Koike, Chihiro Yazawa, Kazuko Nanjo | 1982-08-03 |
| 4195037 | 4-Alkoxy-3,5-diamino-.alpha.,.alpha.,.alpha.-trifluoromethyl-benzene and manufacture thereof and hardener for polyurethane elastomer thereof | Nobuhide Wada, Hideaki Ohashi, Wataro Koike, Chihiro Yazawa | 1980-03-25 |