Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4684717 | Preparation of azo compounds having carboxyl and cyano groups | Hidetomo Ashitaka, Yoshiyuki Miwa | 1987-08-04 |
| 4684718 | Process for the preparation of diazocyano acids by reacting keto-acids with cyanogen compounds | Hidetomo Ashitaka, Yoshiyuki Miwa | 1987-08-04 |
| 4504639 | Process for polymerizing 1,3-butadiene | Haruo Ueno, Hidetomo Ashitaka, Kouichi Nakajima | 1985-03-12 |
| 4379889 | Process for producing polybutadine rubber with enhanced mechanical strength | Hidetomo Ashitaka, Kyohei Oizumi, Kazutoshi Inaishi | 1983-04-12 |