Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7345170 | Crystal and solvate of 2-amino-6-benzyloxypurine and production methods thereof | Taketo Hayashi, Yoshihiko Iwanaga, Yosuke Watanabe | 2008-03-18 |
| 7321035 | Process for producing 2,6-dihalogenopurine | Naruhito Masai, Taketo Hayashi, Hiroharu Kumazawa, Junichi Nishikawa, Istvan Barta | 2008-01-22 |
| 7307167 | Production method of 2,6-dihalopurine | Taketo Hayashi, Hiroharu Kumazawa | 2007-12-11 |
| 6936713 | Process for producing 2,6-dihalogenopurine | Naruhito Masai, Taketo Hayashi, Hiroharu Kumazawa, Junichi Nishikawa, Istvan Barta | 2005-08-30 |