Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6350917 | &agr;-crystal of cyclopentenone | Katsushige Ikai, Masao Funakoshi, Hiroshi Kobori, Kazuyori Ochiai, Ikunoshin Kato | 2002-02-26 |
| 5162581 | Crystalline deoxyspergualin, process for its preparation and suppository containing the same | Katsushige Ikai, Yoshihisa Umeda, Ikunoshin Kato, Tetsushi Saino, Hironobu Hiraga +1 more | 1992-11-10 |
| 4981595 | Process for the purification of spergualin-related compounds | Yoshihisa Umeda, Keiko Miyazaki, Toru Kurome, Ikunoshin Kato, Tetsushi Saino | 1991-01-01 |
| 4603015 | Method for producing glyoxylylspermidine and the use thereof for the production of 15-deoxy spergualin-related compounds | Yoshihisa Umeda, Teruya Nakamura, Akio Fujii, Tomio Takeuchi, Hamao Umezawa | 1986-07-29 |