Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10747022 | Diffractive multi-focal lens and method for manufacturing diffractive multi-focal lens | Atsushi Kobayashi | 2020-08-18 |
| 10564448 | Diffractive multi-focal ophthalmic lens and method for manufacturing diffractive multi-focal ophthalmic lens | — | 2020-02-18 |