Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9196778 | Light concentrating optical element, light concentrating device, photovoltaic power generation device and photothermal conversion device | Tatsuo Niwa | 2015-11-24 |
| 9046279 | Light condensing device, photovoltaic power generation device and photo-thermal conversion device | Tatsuo Niwa, Tatsuya Senga, Takahiro KURASHIMA | 2015-06-02 |