Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10133235 | Shaft member, end member, photoreceptor drum unit, developing roller unit, and process cartridge | Shuichi Ikeda, Yohei Matsuoka, Shinichi Iijima, Daishi Kato, Hiroshi Takata | 2018-11-20 |
| 10095135 | Phthalocyanine crystal, and electrophotographic photoreceptor, electrophotographic photoreceptor cartridge and image-forming device using the same | Mitsuo Wada, Kazutaka Ida, Hiroaki Takamura, Tadashi Mizushima | 2018-10-09 |
| 9835961 | Phthalocyanine crystal, and electrophotographic photoreceptor, electrophotographic photoreceptor cartridge and image-forming device using the same | Mitsuo Wada, Kazutaka Ida, Hiroaki Takamura, Tadashi Mizushima | 2017-12-05 |
| 9804551 | End member which allows transmission of rotary power | Shuichi Ikeda, Yohei Matsuoka, Shinichi Iijima, Daishi Kato, Hiroshi Takata | 2017-10-31 |
| 9494917 | Process cartridge for image forming apparatus and method of separating process cartridge from image forming apparatus | Shuichi Ikeda, Yohei Matsuoka, Shinichi Iijima, Daishi Kato, Hiroshi Takata | 2016-11-15 |
| 9296899 | Phthalocyanine crystal, and electrophotographic photoreceptor, electrophotographic photoreceptor cartridge and image-forming device using the same | Mitsuo Wada, Kazutaka Ida, Hiroaki Takamura, Tadashi Mizushima | 2016-03-29 |
| 8974998 | Method of image forming with a photoreceptor and toner | Kozo Ishio, Hiroaki Takamura, Masaya Oota, Shiho Sano, Takeshi Oowada +4 more | 2015-03-10 |
| 8953984 | Rotating part for image forming apparatus, cartridge for forming image, and image forming apparatus | Shinichi Iijima, Shuichi Ikeda, Makoto Furuune | 2015-02-10 |
| 8906586 | Coating fluid for photosensitive-layer formation, process for producing the same, photoreceptor produced with the coating fluid, image-forming apparatus employing the photoreceptor, and electrophotographic cartridge employing the photoreceptor | Kozo Ishio, Hiroe Fuchigami | 2014-12-09 |
| 8871413 | Toners for electrostatic-image development, cartridge employing toner for electrostatic-image development, and image-forming apparatus | Yuzo Kaneko, Masaya Oota, Shiho Sano, Masakazu Sugihara, Teruki Senokuchi +6 more | 2014-10-28 |
| 8846282 | Phthalocyanine crystal, and electrophotographic photoreceptor, electrophotographic photoreceptor cartridge and image-forming device using the same | Mitsuo Wada, Kazutaka Ida, Hiroaki Takamura, Tadashi Mizushima | 2014-09-30 |
| 8741530 | Image forming apparatus | Kozo Ishio, Hiroaki Takamura, Masaya Oota, Shiho Sano, Takeshi Oowada +4 more | 2014-06-03 |
| 8663882 | Electrophotographic photosensitive body, image-forming device using same and cartridge | Masayuki Hiroi, Hiroaki Takamura | 2014-03-04 |
| 8609309 | Electrophotographic photoreceptor and image-forming apparatus | Yuka Nagao, Masayuki Hiroi | 2013-12-17 |
| 8530123 | Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image-forming apparatus | Kumiko Fujiwara, Hiroaki Fujiwara | 2013-09-10 |
| 8481238 | Electrophotographic photoreceptors, electrophotographic photoreceptor cartridge, and image-forming apparatus | Rui Zhao, Yuka Nagao, Tadashi Mizushima, Shunichiro Kurihara, Takayuki Shoda | 2013-07-09 |
| 8404412 | Electrophotographic photoreceptor, and image forming apparatus | — | 2013-03-26 |
| 8404411 | Electrophotographic photoreceptor, image-forming apparatus, and electrophotographic cartridge | Kozo Ishio, Hiroe Fuchigami, Hiroaki Takamura, Yasunori Kawai | 2013-03-26 |
| 8394559 | Coating liquid for forming undercoat layer, photoreceptor having undercoat layer formed of the coating liquid, image-forming apparatus including the photoreceptor, and electrophotographic cartridge including the photoreceptor | Shunichiro Kurihara, Hiroe Fuchigami | 2013-03-12 |
| 8323861 | Electrophotographic photoreceptor, image-forming apparatus, and electrophotographic cartridge | Kozo Ishio, Hiroe Fuchigami | 2012-12-04 |
| 8288066 | Electrophotographic photoreceptor and image-forming apparatus | Yuka Nagao, Masayuki Hiroi | 2012-10-16 |
| 8221950 | Image forming apparatus | Kozo Ishio, Hiroaki Takamura, Masaya Oota, Shiho Sano, Takeshi Oowada +4 more | 2012-07-17 |
| 8211602 | Image forming apparatus | Kozo Ishio, Hiroaki Takamura, Masaya Oota, Shiho Sano, Takeshi Oowada +4 more | 2012-07-03 |
| 8064796 | Image forming apparatus | Kozo Ishio, Hiroaki Takamura, Masaya Ota, Shiho Sano, Takeshi Oowada +4 more | 2011-11-22 |
| 6803163 | Electrophotographic photoreceptor | Akiteru Fujii, Mamoru Nozomi, Satoshi Kato, Yuuta Kumano | 2004-10-12 |