Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10401650 | Spectacle lens, manufacturing method, supply system, and supply program thereof | Tadashi Kaga, Ayumu Ito | 2019-09-03 |
| 10330952 | Spectacle lenses | — | 2019-06-25 |
| 10302965 | Progressive addition lens, design method and manufacturing method therefor, and progressive addition lens manufacturing system | — | 2019-05-28 |
| 10203523 | Progressive power lens | Takao Tanaka | 2019-02-12 |