Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865438 | Spectacles provided with a magnifier having an automatic focusing function | — | 1989-09-12 |
| 4285928 | Contrast composition for angiography | Toshinari Itaoka | 1981-08-25 |