Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10870725 | Heat curable resin composition, and circuit board with electronic component mounted thereon | Yasuhiro Takase, Kazuki Hanada | 2020-12-22 |
| 10642070 | Progressive addition lens | Tadashi Kaga, Toshihide Shinohara, Ayumu Ito | 2020-05-05 |
| 10545354 | Designing method and designing device for progressive power lens | Ayumu Ito | 2020-01-28 |