Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4554362 | Bis-crown-ether derivatives and their use | Keiichi Kimura, Takumi Maeda | 1985-11-19 |
| 4523994 | Bis-crown-ether derivatives and their use | Keiichi Kimura, Takumi Maeda | 1985-06-18 |