Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5359372 | Contact lens for intraocular observation | Shinji Ishiguro, Toshiharu Morino | 1994-10-25 |
| 4180920 | Arrangement toy for signalling proper arrangement of elements | Morio Ubukata | 1980-01-01 |