Issued Patents All Time
Showing 25 most recent of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12147170 | Image forming apparatus having toner charging | Yuta Isobe, Kuniaki Tamagaki, Takashi Koyanagi, Akihisa Matsukawa, Ryosuke Kanai +3 more | 2024-11-19 |
| 11366402 | Process cartridge and electrophotographic apparatus using the same | Yuka Ishiduka, Tsutomu Nishida, Hideharu Shimozawa, Nobuhiro Nakamura, Hiroyuki Watanabe +4 more | 2022-06-21 |
| 10642206 | Image forming apparatus | Seiichi Shinohara | 2020-05-05 |
| 10073362 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Atsushi Fujii, Haruyuki Tsuji, Hideaki Matsuoka, Nobuhiro Nakamura | 2018-09-11 |
| 10025265 | Developer container, developing device, process cartridge, and image forming apparatus | Shunsuke Mizukoshi, Yuta Isobe, Takayuki Kanazawa, Makoto Tokudome | 2018-07-17 |
| 10001726 | Developer container, developing device, process cartridge, and image forming apparatus | Takayuki Kanazawa, Yuta Isobe, Shunsuke Mizukoshi, Nobuo Oshima | 2018-06-19 |
| 9996032 | Developer container, development apparatus, process cartridge, and image forming apparatus | Shunsuke Mizukoshi, Takayuki Kanazawa, Yuta Isobe, Makoto Tokudome | 2018-06-12 |
| 9933726 | Developer container, cartridge and image forming apparatus | Yuta Isobe, Takayuki Kanazawa, Shunsuke Mizukoshi | 2018-04-03 |
| 9618861 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Atsushi Fujii, Takashi Anezaki, Haruyuki Tsuji | 2017-04-11 |
| 9599915 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Takashi Anezaki, Haruyuki Tsuji, Atsushi Fujii, Nobuhiro Nakamura, Hiroyuki Tomono +1 more | 2017-03-21 |
| 9470989 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Hiroyuki Tomono, Haruyuki Tsuji, Atsushi Fujii, Nobuhiro Nakamura, Hideaki Matsuoka +1 more | 2016-10-18 |
| 9372418 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Atsushi Fujii, Haruyuki Tsuji, Nobuhiro Nakamura, Hideaki Matsuoka, Hiroyuki Tomono | 2016-06-21 |
| 9372417 | Method for producing electrophotographic photosensitive member | Atsushi Fujii, Hideaki Matsuoka, Haruyuki Tsuji, Nobuhiro Nakamura | 2016-06-21 |
| 9372419 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Haruyuki Tsuji, Atsushi Fujii, Nobuhiro Nakamura, Hideaki Matsuoka, Hiroyuki Tomono | 2016-06-21 |
| 9256145 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Atsushi Fujii, Haruyuki Tsuji, Hideaki Matsuoka, Nobuhiro Nakamura | 2016-02-09 |
| 9229342 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Takashi Anezaki, Masashi Nishi, Hirofumi Kumoi, Daisuke Tanaka, Kazumichi Sugiyama | 2016-01-05 |
| 9188888 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus and method of manufacturing the electrophotographic photosensitive member | Atsushi Okuda, Shio Murai, Kazunori Noguchi, Harunobu Ogaki, Takashi Anezaki | 2015-11-17 |
| 9164406 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Masashi Nishi, Takashi Anezaki, Hirofumi Kumoi, Daisuke Tanaka, Kazumichi Sugiyama | 2015-10-20 |
| 9046797 | Process for producing electrophotographic photosensitive member | Atsushi Fujii, Hideaki Matsuoka, Haruyuki Tsuji, Nobuhiro Nakamura | 2015-06-02 |
| 9040214 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and method of manufacturing electrophotographic photosensitive member | Atsushi Fujii, Hideaki Matsuoka, Haruyuki Tsuji, Nobuhiro Nakamura | 2015-05-26 |
| 8980508 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus and method of manufacturing the electrophotographic photosensitive member | Atsushi Okuda, Harunobu Ogaki, Kazunori Noguchi, Shio Murai, Takashi Anezaki | 2015-03-17 |
| 8980509 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method of manufacturing electrophotographic photosensitive member | Kazunori Noguchi, Takashi Anezaki, Atsushi Okuda, Shio Murai, Harunobu Ogaki | 2015-03-17 |
| 8956792 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method of producing electrophotographic photosensitive member | Atsushi Okuda, Harunobu Ogaki, Kazunori Noguchi, Takashi Anezaki, Shio Murai | 2015-02-17 |
| 8921020 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Shio Murai, Harunobu Ogaki, Kazunori Noguchi, Takashi Anezaki, Atsushi Okuda | 2014-12-30 |
| 8815479 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and method of manufacturing electrophotographic photosensitive member | Atsushi Okuda, Kazunori Noguchi, Takashi Anezaki, Harunobu Ogaki, Shio Murai | 2014-08-26 |