Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8013241 | Ionic gel electrolyte, dye-sensitized photoelectric conversion device and solar cell | Nagatoshi Koumura, Zhong-Sheng Wang, Masaru Yoshida, Nobuyuki Tamaoki | 2011-09-06 |
| 7973172 | Organic compound, semiconductor film electrode employing the organic compound, photoelectric conversion element employing the organic compound, and photoelectrochemical solar cell employing the organic compound | Nagatoshi Koumura | 2011-07-05 |