Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656098 | Photovoltaic conversion device and method for producing same | Nobuyuki Ishikawa, Keishi Saito, Soichiro Kawakami, Jinsho Matsuyama, Yuzo Kouda +1 more | 1997-08-12 |
| 5599403 | Semiconductor device containing microcrystalline germanium & method for producing the same | Keishi Saito | 1997-02-04 |