Issued Patents All Time
Showing 26–50 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9448496 | Electrophotographic photosensitive member | Keiji Maruo, Kensuke Okawa, Akihiko Ogata | 2016-09-20 |
| 9436104 | Electrophotographic photosensitive member and image forming apparatus | Keiji Maruo, Kensuke Okawa, Akihiko Ogata | 2016-09-06 |
| 9429859 | Electrophotographic photosensitive member | Hideki Okada | 2016-08-30 |
| 9133227 | Production methods for solubilized lignin, saccharide raw material and monosaccharide raw material, and solubilized lignin | Tetsuo Sakamoto, Kiyotaka Onishi | 2015-09-15 |
| 8765337 | Multilayer type electrophotographic photoconductor and image forming apparatus | Keiji Maruo, Junichiro Otsubo | 2014-07-01 |
| 8686133 | Oxo-titanylphthalocyanine crystal, method for producing the same and electrophotographic photoreceptor | Daisuke Kuboshima, Yoshio Inagaki, Junichiro Otsubo, Keiji Maruo | 2014-04-01 |
| 8660459 | Drum unit having side seals and image-forming apparatus including the same | Kensuke Okawa, Eiji Morimoto | 2014-02-25 |
| 8242261 | Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptor | Daisuke Kuboshima, Yoshio Inagaki, Junichiro Otsubo, Keiji Maruo | 2012-08-14 |
| 7855286 | Titanyl phthalocyanin crystal, method for preparing the same and electrophotographic photoconductor | Junichiro Otsubo | 2010-12-21 |
| 7693454 | Image forming apparatus | Junichiro Otsubo | 2010-04-06 |
| 7468230 | Wet-developing electrophotographic photoconductor and wet-developing image | Fumio Sugai | 2008-12-23 |
| 7399564 | Electrophotographic photoconductor | Junichiro Otsubo | 2008-07-15 |
| 7101647 | Electrophotosensitive material | Kazunari Hamasaki, Daisuke Kuboshima, Hisakazu Honma | 2006-09-05 |
| 7090952 | Electrophotosensitive material | Yukimasa Watanabe, Ayako Yashima | 2006-08-15 |
| 7057034 | Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material | Kazunari Hamasaki, Daisuke Kuboshima, Hisakazu Honma, Eiichi Miyamoto | 2006-06-06 |
| 7029811 | Electrophotographic photoreceptor | Eiichi Miyamoto | 2006-04-18 |
| 6879794 | Image forming apparatus | Ayako Yashima, Yukimasa Watanabe, Keisuke Oba, Masashi Fujishima, Takashi Nagashima | 2005-04-12 |
| 6858368 | Electrophotographic photoreceptor and image forming device | Yukimasa Watanabe, Ayako Yashima | 2005-02-22 |
| 6593047 | Single-layer type electrophotosensitive material | Yukimasa Watanabe, Hisakazu Honma, Ayako Yashima, Maki Uchida, Kyoichi Nakamura | 2003-07-15 |
| 6573017 | Single-layer type electrophotosensitive material | Yukimasa Watanabe, Hisakazu Honma, Ayako Yashima, Maki Uchida, Eiichi Miyamoto | 2003-06-03 |
| 6461779 | Single-layer type electrophotosensitive material | Yukimasa Watanabe, Kyoichi Nakamura, Ayako Yashima, Hisakazu Honma | 2002-10-08 |
| 6444385 | Electrophotosensitive material and method of producing the same | Mitsuo Ihara, Maki Uchida, Daisuke Kuboshima, Yukikatsu Imanaka, Hiromi Nakatsu +1 more | 2002-09-03 |
| 6084622 | Frame structure and an image forming apparatus using such a frame structure | Yoshinori Sugiura, Nobukazu Adachi, Takeshi Setoriyama, Chitose Tenpaku, Noriyoshi Ishikawa +9 more | 2000-07-04 |
| 6035159 | Process cartridge with axially shiftable drive coupling | Takashi Goto, Masaaki Nishikawa, Shigeo Murayama | 2000-03-07 |
| 5907745 | Image forming apparatus having arrangement of sheet support members and air ducts | Yoshinori Sugiura, Seietsu Miura, Tatsuo Hamada, Hiroshi Goto, Akira Kuroda +2 more | 1999-05-25 |