Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344732 | Multi-color electrophotographic image formation method | Shunichi Chiba, Nobuhiro Nakayama, Yasuo Asahina, Yosihisa Okamoto | 1994-09-06 |
| 5061588 | Dry type toner for electrophotography | Hiroyuki Fushimi, Nobuhiro Nakayama, Yasuo Asahina, Mitsuo Aoki | 1991-10-29 |
| 4980258 | Dry type developer for electrophotography | Mitsuo Aoki, Nobuhiro Nakayama, Yasuo Asahina, Hiroyuki Fushimi, Yasuaki Iwamoto | 1990-12-25 |
| 4933250 | Magenta color toner for developing latent electrostatic images in color electrophotography | Nobuhiro Nakayama, Yasuo Asahina, Mitsuo Aoki, Hiroyuki Fushimi | 1990-06-12 |