Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7429109 | Optometric apparatus and lens power determination method | Takehiko Yoshida | 2008-09-30 |
| 7374285 | Eyeglass/contact lens power determining system, and its method | Takehiko Yoshida | 2008-05-20 |
| 7287853 | Spectacle and contact lens selecting system and method thereof | Takehiko Yoshida | 2007-10-30 |
| 7267439 | Optometric apparatus, optometric method, and optometric server | Takehiko Yoshida | 2007-09-11 |