Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5273853 | Black photoconductive toner having sensitivity to light in the wavelength range of semiconductor lasers | Akiyoshi Urano, Seiji Kado, Kazushige Inoue | 1993-12-28 |
| 5260158 | Photoconductive toner comprising a sensitizer dye | Hiroyuki Yamaji, Akiyoshi Urano | 1993-11-09 |
| 5182182 | Electrophotographic image-forming method | Kazuhito Takaoka, Masatoshi Uehara | 1993-01-26 |
| 5132199 | Electrophotographic image-forming method | Kazuhito Takaoka, Uehara Masatoshi | 1992-07-21 |
| 5114817 | Cyan-colored photosensitive toner containing zinc oxide | Akiyoshi Urano | 1992-05-19 |
| 5045879 | Image forming apparatus using photosensitive toner | Kazuhito Takaoka, Kazushige Inoue, Masatoshi Uehara | 1991-09-03 |
| 4950570 | Image-forming process using photosensitive toner | Kazuhito Takaoka, Yosinobu Umetani | 1990-08-21 |
| 4701389 | Photoconductive toner | Teruyo Morimoto, Eiji Nimura, Yuji Tomii, Tatsuo Maeda | 1987-10-20 |
| 4634646 | Method for the formation of electrophotographic images | Teruyo Morimoto | 1987-01-06 |
| 4551403 | Photosensitive material for electrophotography | Nobuhiro Miyakawa, Teruaki Higashiguti, Masatomi Funato | 1985-11-05 |
| 4524117 | Electrophotographic method for the formation of two-colored images | Kouji Maekawa, Mamoru Kato, Syoji Nakagama | 1985-06-18 |
| 4492746 | Electrophotographic photosensitive material with polyester binder | Nobuhiro Miyakawa, Teruaki Higashiguti, Masatomi Funato | 1985-01-08 |
| 4447513 | Photosensitive material for electrophotography | Nobuhiro Miyakawa, Teruaki Higashiguchi, Masatomi Funato | 1984-05-08 |
| 4433039 | Trisazo electrophotographic photosensitive material | Nobuhiro Miyakawa, Teruaki Higashiguti, Masatomi Funato | 1984-02-21 |