Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7238458 | Photo conductor, image forming apparatus, and method for producing photo conductor | Sotoshi Takimoto, Ryuichi Shingae | 2007-07-03 |
| 5162820 | Electrophotographic image forming method | Hajime Yamamoto, Yuji Takashima, Masahiko Nakamura, Kenichi Nakano | 1992-11-10 |
| 5023632 | Electrophotographic image forming method | Hajime Yamamoto, Yuji Takashima, Masahiko Nakamura, Kenichi Nakano | 1991-06-11 |
| 4697913 | Copying apparatus for synthesizing images | Hajimu Oonishi, Yukio Sakai, Yoshiki Hayashi, Robert C. Wells | 1987-10-06 |
| 4660961 | Copying apparatus for synthesizing images | Hajimu Oonishi, Yukio Sakai, Yoshiki Hayashi, Robert C. Wells | 1987-04-28 |
| 4657374 | Development system for photoreceptor having surface potential and a large amount of charge | Eiichiro Tanaka | 1987-04-14 |