Issued Patents All Time
Showing 25 most recent of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12411447 | Sheet conveyance device and image forming apparatus | Tomonori Watanabe | 2025-09-09 |
| 12282290 | Process cartridge including drum cartridge having first holder, developing cartridge having second holder, and plate for connecting first holder and second holder to each other | Yasuo Fukamachi, Junya Sumida, Hideshi Nishiyama, Shinya Kusuda | 2025-04-22 |
| 12259675 | Process cartridge including developing cartridge having developing holder, and drum cartridge having elastic member that can be connected to developing holder | Yasuo Fukamachi, Shinya Kusuda, Junya Sumida, Hideshi Nishiyama | 2025-03-25 |
| 12210300 | Developing cartridge including movable plate for moving holder holding electrical contact surface | Naoya Kamimura, Tomitake Aratachi, Yasuo Fukamachi, Junichi Hashimoto, Saya Minoshima +4 more | 2025-01-28 |
| 12197166 | Image forming apparatus | Yasuo Fukamachi, Masaaki Furukawa | 2025-01-14 |
| 12181825 | Printer | Hiroyuki Shingai, Shohei Ichikawa, Shota Shinoya | 2024-12-31 |
| 12092991 | Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing | Yasuo Fukamachi, Masaaki Furukawa | 2024-09-17 |
| 12072006 | Developing device | Takashi Shimizu, Yasuo Fukamachi, Keita Shimizu | 2024-08-27 |
| 12066784 | Image forming apparatus | Nao Itabashi, Misato Osuka, Keita Shimizu, Go Iwasa, Ryosuke Hayashi +6 more | 2024-08-20 |
| 11914323 | Image forming apparatus including developing guide for guiding attachment and detachment of developing cartridge to and from main body housing | Yasuo Fukamachi, Masaaki Furukawa | 2024-02-27 |
| 11886129 | Image forming apparatus to which solvent cartridge that can accommodate therein solvent is detachably attachable independently of developing cartridge | Yutaka Kakigahara, Satoshi Murata, Masataka Kamiya, Masaaki Furukawa, Yasuo Fukamachi +9 more | 2024-01-30 |
| 11762312 | Developing cartridge including movable plate for moving holder holding electrical contact surface | Naoya Kamimura, Tomitake Aratachi, Yasuo Fukamachi, Junichi Hashimoto, Saya Minoshima +4 more | 2023-09-19 |
| 11740583 | Image forming apparatus | Yasuo Fukamachi, Masaaki Furukawa | 2023-08-29 |
| 11676995 | Semiconductor device | Masato Izumi | 2023-06-13 |
| 11500321 | Image-forming apparatus including structure for switching transmission state of driving force to photosensitive drum | Tomitake Aratachi, Sota Hirano, Kazuma Hinoue, Shintaro Suzuki, Ayaka Komori +1 more | 2022-11-15 |
| 11474473 | Image forming apparatus including drum cartridge having waste toner accumulating unit in which waste toner is accumulated | Masaaki Furukawa, Takashi Shimizu, Shinya Kusuda, Tomitake Aratachi, Yasuo Fukamachi +2 more | 2022-10-18 |
| 11448289 | Developing device | Takashi Shimizu, Yasuo Fukamachi, Keita Shimizu | 2022-09-20 |
| 11401121 | Sheet tray and image forming device | Yasuo Fukamachi, Keita Shimizu | 2022-08-02 |
| 11249438 | Image forming apparatus | Yasuo Fukamachi, Masaaki Furukawa | 2022-02-15 |
| 11028903 | Developing device | Takashi Shimizu, Yasuo Fukamachi, Keita Shimizu | 2021-06-08 |
| 10948851 | Image forming apparatus | Takashi Shimizu, Keita Shimizu, Yasuo Fukamachi, Kasuma Hinoue | 2021-03-16 |
| 10866557 | Image forming apparatus | Yasuo Fukamachi, Masaaki Furukawa | 2020-12-15 |
| 10841444 | Image reading apparatus | Takashi Fujiwara | 2020-11-17 |
| 10700184 | Semiconductor device | Tomohiro Tamaki, Ryohei GEJO | 2020-06-30 |
| 10418470 | Semiconductor device having IGBT portion and diode portion | Ryohei GEJO, Norio Yasuhara, Tomohiro Tamaki | 2019-09-17 |