Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5932383 | Electrophotographic photosensitive member and process cartridge and electrophotographic apparatus including same | Kouichi Nakata, Toshihiro Kikuchi, Koichi Suzuki, Kazushige Nakamura | 1999-08-03 |
| 5837412 | Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus utilizing the same | Koichi Suzuki, Toshihiro Kikuchi, Kazushige Nakamura, Kouichi Nakata | 1998-11-17 |
| 5756248 | Electrophotographic photosensitive member and apparatus and process cartridge provided with the same | Takakazu Tanaka, Toshihiro Kikuchi, Kouichi Nakata | 1998-05-26 |
| 5616442 | Electrophotographic photosensitive member and electrophotographic apparatus using same | Toshihiro Kikuchi, Akihiro Senoo, Kouichi Nakata | 1997-04-01 |
| 5593805 | Oxytitanium phthalocyanine, process for producing same and electrophotographic photosensitive member using same | Shintetsu Go, Hideyuki Takai, Hajime Miyazaki, Itaru Yamazaki, Kazushi Iuchi | 1997-01-14 |
| 5558964 | Electrophotographic photosensitive member, and electrophotographic apparatus, device unit, and facsimile machine employing the same | Toshiyuki Yoshihara, Nobuyuki Hanami, Hideyuki Takai, Hideki Anayama, Hajime Miyazaki +5 more | 1996-09-24 |
| 5510218 | Electrophotographic photosensitive member, process cartridge using same and electrophotographic apparatus | Kouichi Nakata, Toshihiro Kikuchi, Akihiro Senoo | 1996-04-23 |
| 5466550 | Electrophotographic photosensitive member and electrophotographic apparatus, device unit and facsimile machine using the same | Hideyuki Takai, Itaru Yamazaki, Kazushi Iuchi | 1995-11-14 |
| 5432278 | Process for producing crystalline oxytitanium phthalocyanine | Itaru Yamazaki, Hideyuki Takai, Hajime Miyazaki, Kazushi Iuchi | 1995-07-11 |
| 5415962 | Electrophotographic photosensitive member, electrophotographic apparatus using same and device unit using same | Toshihiro Kikuchi, Akihiro Senoo, Takakazu Tanaka | 1995-05-16 |
| 5246807 | Electrophotographic photosensitive member, and electrophotographic apparatus, device unit, and facsimile machine employing the same | Hideyuki Takai, Itaru Yamazaki, Shinya Mayama, Masato Tanaka | 1993-09-21 |
| 5238765 | Electrophotographic photosensitive member | Akihiro Senoo, Masakazu Matsumoto | 1993-08-24 |
| 5202207 | Electrophotographic photosensitive member | Shin Nagahara, Akihiro Senoo | 1993-04-13 |
| 5126223 | Ozone resistant electrophotographic photosensitive member | Toshihiro Kikuchi, Kouichi Suzuki | 1992-06-30 |
| 5098809 | Electrophotographic photosensitive member containing a substituted fluorine compound | Toshihiro Kikuchi, Akihiro Senoo, Ryoji Yashiro | 1992-03-24 |
| 5079118 | Photosensitive member for electrophotography with substituted pyrene | Toshihiro Kikuchi, Akihiro Senoo, Ryoji Yashiro | 1992-01-07 |
| 5049464 | Photosensitive member for electrophotography | Toshihiro Kikuchi, Akihiro Senoo, Ryoji Yashiro | 1991-09-17 |
| 4963450 | Electrophotographic photosensitive member with disazo pigment | Hajime Miyazaki, Shintetsu Go, Akihiro Senoo, Kazushi Iuchi | 1990-10-16 |
| 4942106 | Electrophotographic photosensitive member containing disazo pigment having coupler residue | Hideyuki Takai | 1990-07-17 |