Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10718961 | Spectacle lens | Yoshitaka Matsui, Koushi Harada | 2020-07-21 |
| 10690944 | Spectacle lens that reflects blue light, and spectacles equipped with the spectacle lens | Keiji Nishimoto, Naomi Ogawa | 2020-06-23 |