Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889797 | Dry analytical element having a spread control area for assaying enzyme activity | Yoshikazu Amano, Harumi Katsuyama | 1989-12-26 |
| H622 | Analytical element for measuring activity of creatine kinase | Kazuya Kawasaki, Harumi Katsuyama | 1989-04-04 |