Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7217483 | Electrophotographic photoreceptor, drum cartridge employing the electrophotographic photoreceptor, and image-forming apparatus | Kazutaka Ida, Mitsuo Wada | 2007-05-15 |
| 6884556 | Electrophotographic photoreceptor | Yuuta Kumano, Satoshi Kato, Chiyoko Sato, Akiteru Fujii | 2005-04-26 |
| 6824938 | Electrophotographic photoreceptor | Hiroe Kizaki, Tetsuo Ozawa, Kozo Ishio | 2004-11-30 |
| 6803163 | Electrophotographic photoreceptor | Teruyuki Mitsumori, Akiteru Fujii, Satoshi Kato, Yuuta Kumano | 2004-10-12 |
| 6599671 | Electrophotographic receptor | Teruyuki Mitsumori, Akiteru Fujii, Satoshi Kato, Yuuta Kumano | 2003-07-29 |
| 6482560 | Electrophotographic photoreceptor | Teruyuki Mitsumori, Akiteru Fujii, Satoshi Kato, Yuuta Kumano | 2002-11-19 |
| 5932385 | Electrophotographic copying method and electrophotographic copying machine used in the method | Hiroaki Takamura, Takahiro Choda, Itaru Ogawa | 1999-08-03 |
| 5778286 | Image forming apparatus and photoreceptor for use therein | Eiichi Kido, Yuhi Yui, Toyokazu Mori | 1998-07-07 |
| 5747203 | Electrophotographic photoreceptor having charge generating layer with specific polyester | Osamu Murakami, Masahiro Fuse, Makoto Furuune | 1998-05-05 |
| 5665502 | Electrophotographic photoreceptor and method for producing the photoreceptor | Kunio Ohashi, Mitsuru Tokuyama, Hiroshi Kinashi, Tadashi Umehara, Toshiya Asari | 1997-09-09 |
| 5614343 | Electrophotographic copying process for reversal development | Masayuki Hiroi, Itaru Ogawa | 1997-03-25 |
| 5536607 | Image correcting method using an electrophotographic photoreceptor | Kunio Ohashi, Mitsuru Tokuyama, Hiroshi Kinashi, Tadashi Umehara, Toshiya Asari | 1996-07-16 |
| 5378567 | Polycarbonate binder resin and electrophotographic photoconductor containing the same | Akiko Miyake, Michio Kawai | 1995-01-03 |
| 5338633 | Electrophotographic photoreceptor | Sumiko Watabe, Ryoko Aso | 1994-08-16 |
| 5292607 | Electrophotographic photoreceptor containing polycarbonate resin as a binder and method for preparation thereof | Ryoko Aso, Michio Kawai, Osamu Murakami, Ryuji Nakayama, Tadashi Umehara | 1994-03-08 |
| 5173385 | Photosensitive member for electrophotography with copolyamide interlayer | Kiyoshi Sekihara, Ryoko Aso | 1992-12-22 |
| 5130222 | Electrophotographic photoreceptor and use in repeated copying | Shigenori Otsuka | 1992-07-14 |
| 5120627 | Electrophotographic photoreceptor having a dip coated charge transport layer | Shigenori Otsuka, Hiromi Horiuchi | 1992-06-09 |
| 5037714 | Electrophotographic photoreceptor | Hiromi Horiuchi, Sumiko Watabe | 1991-08-06 |
| 4956256 | Photosensitive member for electrophotography | Shigenori Ohtsuka, Hiroshi Urabe, Masahiro Nukui, Setsuko Sasakawa | 1990-09-11 |
| 4752549 | Electrophotographic photoreceptor having a protective layer | Shigenori Otsuka, Kohki Furuya | 1988-06-21 |
| 4725519 | Dual layer electrophotographic photoreceptor comprises titanium phthalocyanine charge generator and hydrazone charge transport materials | Tetsumi Suzuki, Tetsuo Murayama, Hitoshi Ono, Shigenori Otsuka | 1988-02-16 |
| 4664997 | Crystalline oxytitanium phthalocyanine and photoreceptor for use in electrophotography | Tetsumi Suzuki, Tetsuo Murayama, Hitoshi Ono, Shigenori Otsuka | 1987-05-12 |