Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5841506 | Superimposable eyeglasses | Naoki Karasawa, Toshio Totsuka | 1998-11-24 |
| D385290 | Eyewear frame | Toshio Totsuka | 1997-10-21 |
| D384361 | Eyewear frame | Naoki Karasawa, Toshio Totsuka | 1997-09-30 |
| D379364 | Eyeware frame | Toshio Totsuka | 1997-05-20 |