Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6455696 | Process for preparing 2,6-dichloropurine | Hiroharu Kumazawa, Junichi Nishikawa | 2002-09-24 |
| 6342603 | Purine derivatives having cyclopropane ring | Junichi Yasuoka, Akito Nishiura | 2002-01-29 |