Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8029955 | Electrophotographic photoreceptor and image forming method | Eiichi Sakai, Yoshihiko Eto, Kimiyuki Itou, Akihiko Itami | 2011-10-04 |
| 7981586 | Image forming method using the same | Satoshi Uchino, Masahiro Anno, Okushi Okuyama, Shinya Obara | 2011-07-19 |
| 7885585 | Developing roller and image forming method employing the same | Satoshi Uchino, Nobuaki Kobayashi, Okushi Okuyama, Kouichi Sugama | 2011-02-08 |
| 7831183 | Electrophotograph developing roller and developing apparatus employing the same | Masahiro Anno, Okushi Okuyama, Satoshi Uchino, Shinya Obara, Ryuichi Hiramoto +1 more | 2010-11-09 |
| 7672626 | Developing roller and image forming method employing the same | Satoshi Uchino, Nobuaki Kobayashi, Okushi Okuyama, Kouichi Sugama | 2010-03-02 |
| 7505720 | Developing roller and developing method thereof | Kouichi Sugama, Nobuaki Kobayashi, Okushi Okuyama, Satoshi Uchino | 2009-03-17 |
| 7220526 | Image forming method | Masao Asano, Hiroshi Yamazaki | 2007-05-22 |
| 7078142 | Image forming method | Akihiko Itami, Tomoo Sakimura, Yohko Kitahara, Masahiko Kurachi, Kazuhisa Shida | 2006-07-18 |
| 7074539 | Organic photoreceptor and image forming method | Toyoko Shibata, Naoto Abe, Akihiko Itami | 2006-07-11 |
| 6919155 | Organic photoreceptor and image forming method | Toyoko Shibata, Naoto Abe, Akihiko Itami | 2005-07-19 |
| 6861195 | Image forming method | Fumitaka Mochizuki, Kazuhisa Shida | 2005-03-01 |
| 6692882 | Image forming method | Fumitaka Mochizuki, Kazuhisa Shida | 2004-02-17 |
| 6489069 | Electrophotographic image carrier and image forming apparatus, image forming method and processing cartridge using it | Akihiko Itami, Tomoo Sakimura, Yohko Kitahara, Masahiko Kurachi, Kazuhisa Shida | 2002-12-03 |
| 6461780 | Electrophotographic photoreceptor, image forming method, image forming apparatus, and processing cartridge | Akihiko Itami | 2002-10-08 |
| 6442367 | Electrophotographic image forming method, electrophotographic image forming apparatus, and processing cartridge | Akihiko Itami, Tomoo Sakimura, Yohko Kitahara, Masahiko Kurachi, Kazuhisa Shida | 2002-08-27 |
| 6399262 | Electrophotographic photoreceptor | Akihiko Itami, Tomoo Sakimura, Yohko Kitahara, Masahiko Kurachi, Kazuhisa Shida | 2002-06-04 |
| 6265122 | Electrophotographic photoreceptor and an image forming apparatus and a process cartridge using the same | Akihiko Itami, Tomoo Sakimura, Yohko Kitahara, Masahiko Kurachi, Kazuhisa Shida | 2001-07-24 |
| 6203962 | Electrophotographic image forming method, electrophotographic image forming apparatus, and processing cartridge and electrophotographic photoreceptor used therein | Akihiko Itami, Tomoo Sakimura, Yohko Kitahara, Masahiko Kurachi, Kazuhisa Shida | 2001-03-20 |
| 5863689 | Electrophotographic photoreceptor | Yoshiaki Takei, Yoshihiko Etoh, Asao Matsushima | 1999-01-26 |
| 5721085 | Electrophotographic image forming method | Akihiko Itami, Katsumi Matsuura | 1998-02-24 |
| 5679488 | Electrophotography photoreceptor | Akihiko Itami, Yoshiaki Takei, Chikusa Fukumoto, Yoshihiko Etoh | 1997-10-21 |
| 5591558 | Image forming method | Hiroshi Yamazaki, Yoshihiko Etoh | 1997-01-07 |
| 5589314 | Image forming method using an imidazole-perylene electrophotographic photoreceptor | Yoshihiko Etoh, Asao Matsushima, Hirofumi Hayata, Tomoo Sakimura, Tomoko Suzuki +1 more | 1996-12-31 |
| 5434027 | Photorecptor for electrophotography and image forming method | Yoshihiko Etoh, Asao Matsushima, Yoshiaki Takei | 1995-07-18 |
| 5403691 | Method for preparing an electrophotographic photoreceptor | Yoshihiko Etoh, Yoshiaki Takei | 1995-04-04 |