Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10642070 | Progressive addition lens | Tadashi Kaga, Toshihide Shinohara, Hiroshi Asami | 2020-05-05 |
| 10578887 | Pair of spectacle lenses for binocular vision, manufacturing method, supply system and supply program thereof | Tadashi Kaga, Kazuma Kozu | 2020-03-03 |
| 10578888 | Pair of spectacle lenses for binocular vision, manufacturing method, supply system and supply program thereof | Tadashi Kaga, Kazuma Kozu | 2020-03-03 |
| 10545354 | Designing method and designing device for progressive power lens | Hiroshi Asami | 2020-01-28 |