Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661148 | Pyrrolo[2,3-d]pyrimidine derivatives, process for producing the same and pharmaceutical preparation comprising the same as active ingredient | Yasuji Sakuma, Masaichi Hasegawa, Kenichiro Kataoka, Kenji Hoshina, Noboru Yamazaki +1 more | 1997-08-26 |