Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5481376 | Method and apparatus for improving image quality | — | 1996-01-02 |
| 5296940 | Image processing method and apparatus for converting gray-scale images into binary images | — | 1994-03-22 |
| 4932242 | Capillary type viscosimeter | Zenichiro Shirahama, Hidekazu Nakano | 1990-06-12 |