Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564617 | Theophylline and theobromine derivatives | Hachiro Sugimoto, Takaharu Nakamura, Yoshiharu Daiku | 1986-01-14 |
| 4426383 | Theophylline and theobromine derivatives | Hachiro Sugimoto, Takaharu Nakamura, Toshiji Igarashi, Yoshiharu Daiku | 1984-01-17 |