Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11835201 | Optical lens | Youmei Kaminaga | 2023-12-05 |
| 11725801 | Optical lens | Youmei Kaminaga | 2023-08-15 |
| 11105489 | Illumination lens | Tadashi Fujii, Jun Ito, Youmei Kaminaga, Satoru Yakushiji | 2021-08-31 |
| 10857933 | Control apparatus and lighting system | Shuhei Kojima | 2020-12-08 |