Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663241 | Visual acuity examination apparatus | Natsuki Munekata | 2003-12-16 |
| 5212567 | Magnifying display apparatus | Isao Kawai, Toshiyuki Taguchi, Tetsuo Hayakawa, Nobuo Tokuda | 1993-05-18 |