Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11061258 | Mold for plastic lens, method for manufacturing plastic lens, and plastic lens for eyeglasses | Kiyohiro Saito, Takashi Suzuki, Kenji Tanagawa | 2021-07-13 |
| 10525645 | Method for manufacturing functional plastic lens and polarizing plastic lens | Kiyohiro Saito, Takashi Suzuki, Kenji Tanagawa | 2020-01-07 |
| 9895832 | Method of manufacturing plastic lens, and method for manufacturing mold for forming optical lens | Norio Takatori | 2018-02-20 |