Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12346048 | Image forming apparatus | Katsuyuki Kitajima, Naoki Ota, Masataka Kuribayashi, Yusuke Fukuda, Tatsuhiro Igarashi +2 more | 2025-07-01 |
| 11796939 | Conveying device and image forming apparatus | Naoki Ota, Masataka Kuribayashi, Takafumi Koide, Yusuke Fukuda, Katsuyuki Kitajima +4 more | 2023-10-24 |
| 11630402 | Particle conveying device and image forming apparatus | Yusuke Fukuda, Naoki Ota, Masataka Kuribayashi, Takafumi Koide, Katsuyuki Kitajima +4 more | 2023-04-18 |
| 11249409 | Image forming apparatus and process cartridge | Tatsuhiro Igarashi, Jun Sekiya, Yuma KUBO | 2022-02-15 |
| 10990057 | Image forming apparatus and process cartridge | Jun Sekiya, Tatsuhiro Igarashi, Yuma KUBO | 2021-04-27 |
| 10719041 | Image forming apparatus | Tatsuhiro Igarashi, Naoki Ota, Yusuke Fukuda, Makoto Kamisaki, Jun Sekiya +5 more | 2020-07-21 |
| 10656558 | Image forming apparatus and toner cartridge | Takafumi Koide, Yusuke Fukuda, Katsuyuki Kitajima | 2020-05-19 |
| 10613466 | Image forming apparatus | Yusuke Fukuda, Takafumi Koide, Katsuyuki Kitajima | 2020-04-07 |
| 10570020 | Silica particle and method of preparing silica particle | Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima, Yuka ZENITANI +5 more | 2020-02-25 |
| 10539895 | Image forming apparatus | Makoto Kamisaki, Naoki Ota, Tatsuhiro Igarashi, Jun Sekiya | 2020-01-21 |
| 10495995 | Image forming apparatus | Naoki Ota, Makoto Kamisaki, Tatsuhiro Igarashi, Jun Sekiya | 2019-12-03 |
| 10338488 | Image forming apparatus | Tatsuhiro Igarashi, Manabu Furuki, Naoki Ota, Makoto Kamisaki, Jun Sekiya | 2019-07-02 |
| 10268153 | Image forming apparatus | Makoto Kamisaki, Manabu Furuki, Naoki Ota, Tatsuhiro Igarashi, Jun Sekiya | 2019-04-23 |
| 10120295 | Image forming apparatus | Naoki Ota, Masataka Kuribayashi, Takafumi Koide, Yusuke Fukuda, Katsuyuki Kitajima | 2018-11-06 |
| 10100176 | Resin particle composition | Sakae TAKEUCHI, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Yasuo Kadokura +5 more | 2018-10-16 |
| 10081718 | Resin particle composition | Sakae TAKEUCHI, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-09-25 |
| 10061216 | Electrostatic image developer and toner, electrostatic image developer and toner cartridge | Yuka ZENITANI, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-08-28 |
| 9983494 | Image forming apparatus | Yusuke Fukuda, Masataka Kuribayashi, Naoki Ota, Takafumi Koide, Katsuyuki Kitajima | 2018-05-29 |
| 9983517 | Image forming apparatus | Takafumi Koide, Naoki Ota, Masataka Kuribayashi, Yusuke Fukuda, Katsuyuki Kitajima | 2018-05-29 |
| 9964877 | Image forming apparatus | Masataka Kuribayashi, Naoki Ota, Takafumi Koide, Yusuke Fukuda, Katsuyuki Kitajima | 2018-05-08 |
| 9946178 | Toner for electrostatic image development, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method | Yasuo Kadokura, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-04-17 |
| 9904197 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Yoshifumi Eri, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-02-27 |
| 9891543 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Yasuo Kadokura, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Tomohito Nakajima +5 more | 2018-02-13 |
| 9885966 | Electrostatic charge image developing toner, electrostatic charge image developer and toner cartridge | Tomohito Nakajima, Hiroyoshi Okuno, Satoshi Inoue, Yoshifumi Iida, Yuka ZENITANI +5 more | 2018-02-06 |
| 9874836 | Image forming apparatus using a developer containing a specific toner | Katsuyuki Kitajima, Naoki Ota, Masataka Kuribayashi, Takafumi Koide, Yusuke Fukuda | 2018-01-23 |