Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10048404 | Polycarbonate resin and optical lens | Manabu Hirakawa, Takashi Motoi, Mitsuharu Kitamura | 2018-08-14 |
| 9982129 | Polycarbonate resin composition, and optical material and optical lens each manufactured using same | Hirohito Ishizuka, Kentaro Ishihara, Munenori Shiratake, Manabu Hirakawa | 2018-05-29 |