Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388482 | High-voltage photovoltaic cell having a heterojunction of amorphous semiconductor and amorphous silicon | Yoshihiro Hamakawa | 1983-06-14 |
| 4385199 | Photovoltaic cell having a hetero junction of amorphous silicon carbide and amorphous silicon | Yoshihiro Hamakawa | 1983-05-24 |
| 4385200 | Photovoltaic cell having a hetero junction of amorphous silicon carbide and amorphous silicon | Yoshihiro Hamakawa | 1983-05-24 |
| 4368284 | Polyvinyl chloride composite material | Minoru Ushioda, Tetsuro Yamamoto, Itaru Hatano | 1983-01-11 |