Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837137 | Electrophotographic photoreceptor | Toyoki Kazama, Yukio Takano, Yukihisa Tamura | 1989-06-06 |
| 4833055 | Electrophotographic photoreceptor comprising amorphous silicon and amorphous carbon buffer layer | Toyoki Kazama, Kenichi Hara, Toshiyuki Iijima, Yukio Takano | 1989-05-23 |
| 4824903 | Heat-resistant polyorganosiloxane composition | Shingo Sewa, Kiyoshi Mizushima, Minoru Emoto | 1989-04-25 |