Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10534199 | Functional sheet and lens using same | Akio Ohkubo, Hideaki Kimura, Masukazu Hirata | 2020-01-14 |
| 9063276 | Polarizing lens constituted of aromatic polycarbonate | Terutaka Tokumaru, Ken Shimomai, Katunori Suzuki, Kyousuke Nakamura, Akio Ohkubo | 2015-06-23 |
| 8936363 | Polarizing lens made of aromatic polycarbonate | Terutaka Tokumaru, Katsunori Suzuki, Ken Shimomai, Kyousuke Nakamura, Akio Ohkubo | 2015-01-20 |