Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886903 | Process for production of prostaglandins D2 | Ryoji Noyori, Akira Yanagisawa, Seizi Kurozumi | 1989-12-12 |
| 4847059 | Process for the production of silicon tetrachloride | Yoshinori Nakata, Takeshi Okutani | 1989-07-11 |
| 4847147 | Magnetic recording medium | Masashi Aonuma, Yasuo Tamai | 1989-07-11 |
| 4845282 | Process for prostaglandin E.sub.1 production, and novel delta 7-prostaglandins E and 7-hydroxyprostaglandins E | Ryoji Noyori, Toshio Kawagishi, Seizi Kurozumi | 1989-07-04 |