Issued Patents All Time
Showing 25 most recent of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12339597 | Electro-conductive member, process cartridge, and electrophotographic image forming apparatus | Shota Kaneko, Kenji Takashima, Masahiro Kurachi, Kazuhiro Yamauchi, Satoru Nishioka +1 more | 2025-06-24 |
| 12259674 | Electroconductive member, process cartridge, and electrophotographic image formation device | Kenji Takashima, Kazuhiro Yamauchi, Satoru Nishioka, Takumi Furukawa, Masaki Yamada | 2025-03-25 |
| 12032331 | Electroconductive member, process cartridge, and electrophotographic image forming apparatus | Atsushi Uematsu, Masatsugu Hongo, Mototeru Goto, Masaki Tsunoda, NAO HIGUCHI | 2024-07-09 |
| 11971683 | Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming apparatus | Satoru Nishioka, Kazuhiro Yamauchi, Hiroaki Watanabe, Takumi Furukawa, Yasuhiro Fushimoto +3 more | 2024-04-30 |
| D1008057 | Height gauge | Kenji Iwamoto, Masanori Seki | 2023-12-19 |
| 11640122 | Electroconductive member, process cartridge, and image forming apparatus | Satoru Nishioka, Kenji Takashima, Kazuhiro Yamauchi, Masahiro Kurachi, Takumi Furukawa +4 more | 2023-05-02 |
| 11586121 | Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming device | Masaki Yamada, Kenji Takashima, Tetsuo Hino, Kazuhiro Yamauchi, Takumi Furukawa | 2023-02-21 |
| 11397388 | Process for producing an electrophotographic electroconductive member | Satoru Nishioka, Masahiro Kurachi, Kenji Takashima, Kazuhiro Yamauchi, Kana Sato +5 more | 2022-07-26 |
| 11392050 | Process cartridge and electrophotographic apparatus | Tsutomu Nishida, Yuka Ishiduka, Kenichi Kaku, Nobuhiro Nakamura, Hiroyuki Watanabe +3 more | 2022-07-19 |
| 11385559 | Electroconductive member, process cartridge, and image forming apparatus | Satoru Nishioka, Kenji Takashima, Kazuhiro Yamauchi, Masahiro Kurachi, Takumi Furukawa +4 more | 2022-07-12 |
| 11378910 | Process cartridge and image forming apparatus | Takashi Mukai, Takashi Hiramatsu, Shuhei Tokiwa, Takayuki Namiki, Takumi Furukawa +1 more | 2022-07-05 |
| 11366402 | Process cartridge and electrophotographic apparatus using the same | Yuka Ishiduka, Tsutomu Nishida, Hideharu Shimozawa, Nobuhiro Nakamura, Hiroyuki Watanabe +4 more | 2022-06-21 |
| 11347156 | Electro-conductive member for electrophotography, process cartridge for electrophotography, and electrophotographic image forming apparatus | Masahiro Kurachi, Kazuhiro Yamauchi, Satoru Nishioka, Kenji Takashima | 2022-05-31 |
| 11340553 | Process cartridge and electrophotographic apparatus | Kaname Watariguchi, Kohei Makisumi, Fumiyuki Hiyama, Kazuhiro Yamauchi, Hirotaka Araki +1 more | 2022-05-24 |
| 11175602 | Electroconductive member, process cartridge, and electrophotographic image forming apparatus | Satoru Nishioka, Masahiro Kurachi, Kenji Takashima, Kazuhiro Yamauchi, Kana Sato +5 more | 2021-11-16 |
| 11169454 | Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming apparatus | Satoru Nishioka, Kazuhiro Yamauchi, Hiroaki Watanabe, Takumi Furukawa, Yasuhiro Fushimoto +3 more | 2021-11-09 |
| 11137716 | Process cartridge and electrophotographic apparatus | Fumiyuki Hiyama, Kaname Watariguchi, Kohei Makisumi, Kazuhiro Yamauchi | 2021-10-05 |
| 11112748 | Developing member, process cartridge and electrophotographic apparatus | Masaki Yamada, Tetsuo Hino, Kazuhiro Yamauchi, Takumi Furukawa, Hiroaki Watanabe +3 more | 2021-09-07 |
| 11112719 | Process cartridge and electrophotographic apparatus capable of suppressing lateral running while maintaining satisfactory potential function | Kohei Makisumi, Kaname Watariguchi, Fumiyuki Hiyama, Kazuhiro Yamauchi | 2021-09-07 |
| 10845724 | Electro-conductive member, process cartridge and image forming apparatus | Satoru Nishioka, Kenji Takashima, Kazuhiro Yamauchi, Masahiro Kurachi, Takumi Furukawa | 2020-11-24 |
| 10835976 | Method for manufacturing cooling unit | Tomoyuki Hirayama, Tatsunori Akimoto, Kazuhito Seki, Akihiro Mogi, Takao Otaki | 2020-11-17 |
| 10678158 | Electro-conductive member for electrophotography, process cartridge, and electrophotographic image forming apparatus | Kazuhiro Yamauchi, Kenji Takashima, Masahiro Kurachi | 2020-06-09 |
| 10678154 | Electrophotographic electroconductive member, process cartridge, and electrophotographic image forming apparatus | Kenji Takashima, Kazuhiro Yamauchi, Masahiro Kurachi | 2020-06-09 |
| 10416588 | Charging member, process cartridge, electrophotographic image forming apparatus, and method for manufacturing charging member | Hiroki Masu, Kazuhiro Yamauchi, Masaki Tsunoda, Takumi Furukawa | 2019-09-17 |
| 10280148 | Electroconductive member for electrophotography and quaternary ammonium salt | Satoru Nishioka, Satoru Yamada, Kazuhiro Yamauchi | 2019-05-07 |