Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429784 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kaname Watariguchi, Kenichi Kaku, Haruyuki Tsuji | 2025-09-30 |
| 12429785 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Shuntaro Watanabe, Taichi Sato, MASATADA HIROTA, Kunihiko Sekido | 2025-09-30 |
| 12422760 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kaname Watariguchi, Kenichi Kaku, Haruyuki Tsuji | 2025-09-23 |
| 12353164 | Electrophotographic apparatus | Akihiro Maruyama, Kenichi Kaku, Shuhei Iwasaki, Michiyo Sekiya, Kaname Watariguchi +4 more | 2025-07-08 |
| 12326689 | Electrophotographic apparatus | Kenichi Kaku, Akihiro Maruyama, Shuhei Iwasaki, Tatsuya Yamaai, Kaname Watariguchi +2 more | 2025-06-10 |
| 11947275 | Electrophotographic apparatus | Shuhei Iwasaki, Kaname Watariguchi, Akihiro Maruyama, Kenichi Kaku, Michiyo Sekiya +3 more | 2024-04-02 |
| 11340553 | Process cartridge and electrophotographic apparatus | Kaname Watariguchi, Fumiyuki Hiyama, Yuichi Kikuchi, Kazuhiro Yamauchi, Hirotaka Araki +1 more | 2022-05-24 |
| 11249407 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kaname Watariguchi, Tomohito Ishida, Masataka Kawahara, Michiyo Sekiya | 2022-02-15 |
| 11237493 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kaname Watariguchi, Masataka Kawahara, Tomohito Ishida, Michiyo Sekiya | 2022-02-01 |
| 11181837 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Michiyo Sekiya, Kaname Watariguchi, Masataka Kawahara, Tomohito Ishida | 2021-11-23 |
| 11150566 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Shuhei Iwasaki, Akira Sakakibara, Jumpei Kuno, Yota Ito | 2021-10-19 |
| 11137716 | Process cartridge and electrophotographic apparatus | Fumiyuki Hiyama, Kaname Watariguchi, Kazuhiro Yamauchi, Yuichi Kikuchi | 2021-10-05 |
| 11126097 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tomohito Ishida, Kaname Watariguchi, Masataka Kawahara, Michiyo Sekiya | 2021-09-21 |
| 11112719 | Process cartridge and electrophotographic apparatus capable of suppressing lateral running while maintaining satisfactory potential function | Kaname Watariguchi, Fumiyuki Hiyama, Kazuhiro Yamauchi, Yuichi Kikuchi | 2021-09-07 |
| 11086241 | Electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus | Jumpei Kuno, Akira Sakakibara, Yota Ito, Shuhei Iwasaki | 2021-08-10 |
| 10942462 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Yota Ito, Akira Sakakibara, Jumpei Kuno, Shuhei Iwasaki | 2021-03-09 |
| 10831117 | Electrophotographic photosensitive member, electrophotographic apparatus, and process cartridge | Akira Sakakibara, Yota Ito, Jumpei Kuno, Shuhei Iwasaki | 2020-11-10 |