Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324364 | Pin junction photovoltaic device having an i-type a-SiGe semiconductor layer with a maximal point for the Ge content | Koichi Matsuda, Masafumi Sano | 1994-06-28 |
| 5279679 | Multi-layered photovoltaic element having at least three unit cells | Jinsho Matsuyama, Koichi Matsuda, Hiroshi Yamamoto, Toshihiro Yamashita | 1994-01-18 |
| 5279681 | Photovoltaic device with layer region containing germanium therin | Koichi Matsuda, Jinsho Matsuyama, Naoto Okada, Toshihiro Yamashita | 1994-01-18 |