Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4973706 | Process for the preparation of indigo compounds | Yoshihiro Yamamoto, Usaji Takaki, Shinobu Aoki | 1990-11-27 |
| 4966977 | Process for the preparation of indigo compounds | Usaji Takaki, Shinobu Aoki, Yoshihiro Yamamoto | 1990-10-30 |
| 4908472 | Preparation process of cinnamate ester | Usaji Takaki, Shinobu Aoki, Yoshihiro Yamamoto | 1990-03-13 |
| 4661620 | Preparation process of cinnamate esters | Usaji Takaki, Isamu Sudo, Toshio Matsuhisa | 1987-04-28 |
| 4319018 | Process for producing polymethylene polyphenyl polycarbamates | Katsuharu Miyata, Seiji Hasegawa, Shinobu Aoki | 1982-03-09 |