Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12292711 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2025-05-06 |
| 12222674 | Cartridge, toner cartridge, and image forming apparatus | Yosuke Kashiide, Yuichi Fukui, Naoki Hayashi, Naoki Maeda, Takashi Kimura +2 more | 2025-02-11 |
| 12174582 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2024-12-24 |
| 12130581 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2024-10-29 |
| 12050423 | Drive mechanism and image forming apparatus | — | 2024-07-30 |
| 11971682 | Cartridge and image forming apparatus | Hideki Kakuta, Toshiaki Takeuchi, Yu Akiba, Tomofumi Kawamura, Yusuke Atsu +1 more | 2024-04-30 |
| 11841646 | Developer storage device and image forming apparatus to determine service life or replacement time of the developer storage device | Shinichi Ueda, Kenichirou Isobe | 2023-12-12 |
| 11687029 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2023-06-27 |
| 11650538 | Cartridge and image forming apparatus | Hideki Kakuta, Toshiaki Takeuchi, Yu Akiba, Tomofumi Kawamura, Yusuke Atsu +1 more | 2023-05-16 |
| 11320782 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2022-05-03 |
| 11314201 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2022-04-26 |
| 11237498 | Image forming apparatus including a movement mechanism for moving a toner container that is replaceable | — | 2022-02-01 |
| 10732545 | Cartridge remanufacturing method and cartridge | Toshiaki Takeuchi, Yu Akiba, Shota Nakamura, Masakazu Tatsumi, Hiroki Shimizu +1 more | 2020-08-04 |
| 10691063 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2020-06-23 |
| 10670986 | Developing apparatus and image forming apparatus | Hideki Maeshima, Soichi Ishii | 2020-06-02 |
| 10372062 | Developing apparatus and process cartridge | Hideki Maeshima, Soichi Ishii | 2019-08-06 |
| 10101688 | Gear unit, developing device, and manufacturing method therefor | Hideki Maeshima, Hiroki Shimizu | 2018-10-16 |
| 9964921 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2018-05-08 |
| 9785086 | Developer container, developing device, process cartridge, and image forming apparatus | Hideki Maeshima | 2017-10-10 |
| 9785087 | Developer container, developing apparatus, process cartridge, and image forming apparatus | Hideki Maeshima | 2017-10-10 |
| 9696684 | Process cartridge and image forming apparatus | Hideki Maeshima, Kuniaki Hirukawa, Yoshihiro Mitsui | 2017-07-04 |
| D790004 | Process cartridge for image forming apparatus | Hideki Maeshima, Masato Tanabe, Hiroki Shimizu, Kuniaki Hirukawa | 2017-06-20 |
| D790005 | Process cartridge for image forming apparatus | Hideki Maeshima, Masato Tanabe, Hiroki Shimizu, Kuniaki Hirukawa | 2017-06-20 |
| D789446 | Process cartridge for image forming apparatus | Hideki Maeshima, Masato Tanabe, Hiroki Shimizu, Kuniaki Hirukawa | 2017-06-13 |
| D788213 | Process cartridge for image forming apparatus | Hideki Maeshima, Masato Tanabe, Hiroki Shimizu, Kuniaki Hirukawa | 2017-05-30 |