Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873059 | Pipette device | Yoshio Saito | 1989-10-10 |
| 4869114 | Liquid depositing device and method | Sigeru Tezuka | 1989-09-26 |
| 4801434 | Dual pipette device | Yoshio Saito, Takashi Koizumi, Osamu Seshimoto | 1989-01-31 |