Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10642070 | Progressive addition lens | Toshihide Shinohara, Ayumu Ito, Hiroshi Asami | 2020-05-05 |
| 10578887 | Pair of spectacle lenses for binocular vision, manufacturing method, supply system and supply program thereof | Ayumu Ito, Kazuma Kozu | 2020-03-03 |
| 10578888 | Pair of spectacle lenses for binocular vision, manufacturing method, supply system and supply program thereof | Ayumu Ito, Kazuma Kozu | 2020-03-03 |