Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700905 | Ultrawide-band light pulse generation | Ryuji Morita, Mikio Yamashita | 2004-03-02 |
| 5841506 | Superimposable eyeglasses | Toshio Totsuka, Takuro Tsukatani | 1998-11-24 |
| D384361 | Eyewear frame | Toshio Totsuka, Takuro Tsukatani | 1997-09-30 |
| 5663779 | Variable transmission light polarizing lens assembly | — | 1997-09-02 |