Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694196 | Experimental instrument for examining permeability of a flowing cornea and an experimental unit using said experimental instrument | Yoshiaki Hirai | 1997-12-02 |
| 5599175 | Micro flow controlling pump | Yoshiaki Hirai | 1997-02-04 |