Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10935898 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Ikuyo Kuroiwa, Kumiko Takizawa, Tsuyoshi Shimada, Kan Tanabe, Haruhiko Mitsuda +2 more | 2021-03-02 |
| 10921723 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kumiko Takizawa, Tsuyoshi Shimada, Takanori Ueno, Ikuyo Kuroiwa, Haruhiko Mitsuda +1 more | 2021-02-16 |
| 10908521 | Electrophotographic photoconductor, process cartridge, and electrophotographic apparatus | Haruhiko Mitsuda, Kumiko Takizawa, Kan Tanabe, Ikuyo Kuroiwa, Takanori Ueno +1 more | 2021-02-02 |
| 10838314 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kumiko Takizawa, Ikuyo Kuroiwa, Kan Tanabe, Tsuyoshi Shimada, Haruhiko Mitsuda +1 more | 2020-11-17 |
| 10114301 | Electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus | Atsushi Okuda, Yuka Ishiduka, Atsushi Fujii, Akihiro Maruyama, Kazunori Noguchi +3 more | 2018-10-30 |
| 9599917 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Atsushi Okuda, Nobuhiro Nakamura, Kazunori Noguchi, Akihiro Maruyama, Atsushi Fujii +3 more | 2017-03-21 |
| 8886092 | Electrophotographic apparatus and process cartridge | Yoshihisa Saito, Shoji Amamiya, Hideki Ogawa, Kan Tanabe, Mayumi Oshiro +2 more | 2014-11-11 |
| 7813675 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kan Tanabe, Yoshihisa Saito, Hideki Ogawa, Shoji Amamiya, 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, Takahiro Mitsui, Hiroki Uematsu, Shuji Ishii +2 more | 2009-05-19 |
| 7226711 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Shoji Amamiya, Koichi Nakata, 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, Akira Shimada, Takahiro Mitsui, Koichi Nakata, Shuji Ishii +2 more | 2007-03-06 |
| 7078140 | Electrophotographic photosensitive member, electrophotographic apparatus, and process cartridge | Kimihiro Yoshimura, Yosuke Morikawa, Kouichi Nakata, Shuji Ishii, Daisuke Tanaka | 2006-07-18 |
| 7022446 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kimihiro Yoshimura, Yosuke Morikawa, Kouichi Nakata, Daisuke Tanaka | 2006-04-04 |
| 6998210 | Electrophotographic photosensitive member, electrophotographic apparatus, and process cartridge | Kimihiro Yoshimura, Yosuke Morikawa, Kouichi Nakata, Daisuke Tanaka | 2006-02-14 |
| 6913862 | PHENOLIC COMPOUND, NOVEL RESOL RESIN, CURED PRODUCTS THEREOF, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER CONTAINING THEM, AND PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS WHICH HAVE THE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER | Kouichi Nakata, Yosuke Morikawa, Kimihiro Yoshimura, Daisuke Tanaka | 2005-07-05 |
| 6835512 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Yosuke Morikawa, Kouichi Nakata, Kimihiro Yoshimura, Daisuke Tanaka | 2004-12-28 |
| 6815135 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Yosuke Morikawa, Kouichi Nakata, Kimihiro Yoshimura, Daisuke Tanaka | 2004-11-09 |
| 6806009 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Daisuke Tanaka, Yosuke Morikawa, Kouichi Nakata, Kimihiro Yoshimura | 2004-10-19 |
| 5800955 | Electrophotographic photosensitive member having polycarbonate-containing surface layer | Noboru Kashimura, Harumi Sakoh, Shoji Amamiya | 1998-09-01 |
| 5504558 | Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same | — | 1996-04-02 |
| 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, Shoji Amamiya, Takashige Kasuya +2 more | 1996-01-16 |
| 5393628 | Electrophotographic photosensitive member, and electrophotographic apparatus employing the same | Kazushige Nakamura | 1995-02-28 |
| 5357320 | Electrophotographic apparatus | Noboru Kashimura, Harumi Sakoh, Kazushige Nakamura, Shoji Amamiya, Takashige Kasuya +2 more | 1994-10-18 |
| 5143807 | Electrophotographic photoreceptor with superlattic barrier layer | Shuji Yoshizawa | 1992-09-01 |
| 4859552 | Electrophotographic photoreceptor with superlattice structure | Shuji Yoshizawa | 1989-08-22 |