Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8886092 | Electrophotographic apparatus and process cartridge | Yoshihisa Saito, Hideki Ogawa, Tatsuya Ikezue, Kan Tanabe, Mayumi Oshiro +2 more | 2014-11-11 |
| 7813675 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kan Tanabe, Yoshihisa Saito, Hideki Ogawa, Tatsuya Ikezue, Takahiro Mitsui +2 more | 2010-10-12 |
| 7534534 | Electrophotographic Photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Koichi Nakata, Akira Shimada, Tatsuya Ikezue, Takahiro Mitsui, Hiroki Uematsu +2 more | 2009-05-19 |
| 7226711 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Koichi Nakata, Tatsuya Ikezue, Takahiro Mitsui, Akira Shimada, Hiroki Uematsu +2 more | 2007-06-05 |
| 7186489 | Electrophotographic photosensitive member, electrophotographic photosensitive member manufacturing process, process cartridge, and electrophotographic apparatus | Hiroki Uematsu, Tatsuya Ikezue, Akira Shimada, Takahiro Mitsui, Koichi Nakata +2 more | 2007-03-06 |
| 6436597 | ELECTROPHOTOGRAPHIC PHOTOSENSITVE MEMBER, PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, AND PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS WHICH HAVE THE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER | Akio Maruyama, Michiyo Sekiya, Hiroki Uematsu | 2002-08-20 |
| 6372397 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Akio Maruyama, Toshihiro Kikuchi, Michiyo Sekiya, Hiroki Uematsu | 2002-04-16 |
| 6289190 | Electrophotographic apparatus and process cartridge | Akio Maruyama, Yukio Nagase, Toshihiro Kikuchi, Koichi Suzuki, Harumi Ishiyama | 2001-09-11 |
| 6110628 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Michiyo Sekiya, Hideki Anayama, Akio Maruyama, Hiroki Uematsu, Hiroyuki Tanaka | 2000-08-29 |
| 5943541 | Image forming apparatus with extended length charge transporting layer | Noboru Kashimura | 1999-08-24 |
| 5923925 | Electrophotographic apparatus | Kazushige Nakamura, Akio Maruyama, Noboru Kashimura | 1999-07-13 |
| 5800955 | Electrophotographic photosensitive member having polycarbonate-containing surface layer | Noboru Kashimura, Harumi Sakoh, Tatsuya Ikezue | 1998-09-01 |
| 5729801 | Electrophotographic apparatus and process cartridge | Akio Maruyama, Noboru Kashimura, Toshihiro Kikuchi, Kazushige Nakamura, Hiroyuki Tanaka | 1998-03-17 |
| 5708932 | Charging system and electrophotography apparatus | Hideyuki Yano, Akio Maruyama, Yomishi Toshida, Noboru Kashimura, Kazushige Nakamura +2 more | 1998-01-13 |
| 5667926 | Electrophotographic apparatus and image forming process | Akio Maruyama, Harumi Sako, Kazushige Nakamura | 1997-09-16 |
| 5585214 | Electrophotographic photosensitive member having polycarbonate with end-cured glycidyl groups | Noboru Kashimura, Masaaki Yamagami | 1996-12-17 |
| 5500718 | Electrophotographic photosensitive member and electrophotographic device using the same | Yuichi Hashimoto, Teigo Sakakibara | 1996-03-19 |
| 5485250 | Electrophotographic apparatus with photosensitive member having surface layer of binder resin and fluoro and/or silicon compound particles | Noboru Kashimura, Harumi Sakoh, Kazushige Nakamura, Takashige Kasuya, Haruyuki Tsuji +2 more | 1996-01-16 |
| 5455135 | Electrophotographic photosensitive member with overlayer and electrophotographic apparatus employing same | Akio Maruyama, Kazushige Nakamura, Shin Nagahara, Haruyuki Tsuji, Masaaki Yamagami +1 more | 1995-10-03 |
| 5422210 | Electrophotographic photosensitive member and electrophotographic apparatus, device unit and facsimile machine using the same | Akio Maruyama, Toshiro Kikuchi, Shin Nagahara, Katsumi Aoki | 1995-06-06 |
| 5357320 | Electrophotographic apparatus | Noboru Kashimura, Harumi Sakoh, Kazushige Nakamura, Takashige Kasuya, Haruyuki Tsuji +2 more | 1994-10-18 |
| 5338632 | Electrophotographic photosensitive member and electrophotographic device using the same | Yuichi Hashimoto, Teigo Sakakibara | 1994-08-16 |
| 5148639 | Surface roughening method for organic electrophotographic photosensitive member | Kiyoshi Sakai, Teigo Sakakibara, Harumi Sakou | 1992-09-22 |
| 5114814 | Photosensitive member for electrophotography, image forming method and electrophotographic apparatus using the same | Harumi Sakoh, Kiyoshi Sakai | 1992-05-19 |
| 5079117 | Electrophotographic photosensitive member with electrical conductor containing polyether-polyurethane layer | Takashi Koyama, Hideki Anayama, Yuichi Hashimoto, Noriko Hirayama, Kiyoshi Sakai +2 more | 1992-01-07 |