Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837137 | Electrophotographic photoreceptor | Koichi Aizawa, Yukio Takano, Yukihisa Tamura | 1989-06-06 |
| 4833055 | Electrophotographic photoreceptor comprising amorphous silicon and amorphous carbon buffer layer | Koichi Aizawa, Kenichi Hara, Toshiyuki Iijima, Yukio Takano | 1989-05-23 |
| 4770966 | Electrophotographic photosensitive material comprising amorphous carbon protective layer containing hydrogen and fluorine | Koichi Aizawa, Kenichi Hara, Toshiyuki Iijima, Yukio Takano | 1988-09-13 |
| 4675265 | Electrophotographic light-sensitive element with amorphous C overlayer | Koichi Aizawa, Kiyoto Yamaguchi, Kenichi Hara, Toshiyuki Iijima | 1987-06-23 |
| 4522904 | Electrophotographic process | Hideki Kina, Toshiyuji Iijima, Eizo Tanabe, Masaharu Namba | 1985-06-11 |
| 4462862 | Method for generating substrates of electrophotographic photosensitive materials | Michiro Shimatani | 1984-07-31 |
| 4460673 | Method of producing amorphous silicon layer and its manufacturing apparatus | Kunio Sukigara | 1984-07-17 |
| 4452828 | Production of amorphous silicon film | Masaharu Namba, Mitsuru Yamauchi | 1984-06-05 |
| 4438188 | Method for producing photosensitive film for electrophotography | Michiro Shimatani | 1984-03-20 |
| 4223550 | Carbon monoxide detecting apparatus | Teizo Takahama, Tatumi Hieda | 1980-09-23 |
| 4224280 | Carbon monoxide detecting device | Teizo Takahama | 1980-09-23 |