Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879400 | Process for producing alpha-(benzylidene)acetonylphosphonates | Kiyotomo Seto, Ryozo Sakoda | 1989-11-07 |
| 4843076 | Dihydropyridine-5-phosphonic acid cyclic ester | Kiyotomo Seto, Ryozo Sakoda, Yoshimasa Kamikawaji, Sakuya Tanaka | 1989-06-27 |