Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815788 | Crystalline silicon thin film semiconductor device, crystalline silicon thin film photovoltaic device, and process for producing crystalline silicon thin film semiconductor device | Fumihito Oka, Yasushi Minagawa | 2004-11-09 |
| 6777714 | Crystalline silicon semiconductor device and method for fabricating same | Yasushi Minagawa, Fumihito Oka, Susumu Takahashi, Yoshiaki Yazawa | 2004-08-17 |
| 6703289 | Method for forming crystalline silicon layer and crystalline silicon semiconductor device | Yasushi Minakawa, Fumihito Oka, Tadashi Sasaki | 2004-03-09 |