Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7360898 | Eye accommodation function state measurement device and eye accommodation function state measurement method | Tatsuhiko Nagata, Tetsurou Nishida | 2008-04-22 |
| 7290879 | Eye refractive power measurement device | Tatsuhiko Nagata, Tetsurou Nishida | 2007-11-06 |