Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845375 | Contact photoelectric conversion apparatus having plurality of protecting layers | — | 1989-07-04 |
| 4443095 | Image transfer and sheet separation apparatus for electrophotographic system | Fuyuhiko Matsumoto | 1984-04-17 |
| 4430402 | Dichromatic electrophotography using two developer compositions applied sequentially | — | 1984-02-07 |
| 4413899 | Copying method and apparatus | Shuichi Karasawa, Fuyuhiko Matsumoto, Masatoshi Saitou, Tsutomu Ishida, Kunihiko Ikeda +2 more | 1983-11-08 |
| 4389113 | Improved developing device for two-color electrophotographic copying apparatus | Fuyuhiko Matsumoto, Kunihiko Ikeda | 1983-06-21 |
| 4351604 | Multi-color electrostatic copying apparatus | Shuichi Karasawa, Fuyuhiko Matsumoto, Kunihiko Ikeda | 1982-09-28 |